KR102293083B1 - Illumination device for a motor vehicle head lamp and motor vehicle head lamp - Google Patents

Abstract

The present invention relates to a lighting device (1) for a motor vehicle headlamp for generating a light distribution having a light-dark boundary, said lighting device comprising at least one light source (10), one light-transmissive body (100), at least one one or more light input elements 101 for inputting light emitted by the light source 10, and a projection device 200, the light transmissive body 100 having an aperture edge region 104 a diaphragm device (103), wherein the diaphragm device (103) is arranged between the light input element (101) and the projection device (200) in the light propagation direction, and the light of the at least one light source (10) is a light input incident into the light-transmissive body 100 through the element 101 and propagates as a first light beam S1 in the light-transmissive body 100 , and by means of the diaphragm device 103 , the first light beam S1 is , in such a way that the changed second light beam S2 is mapped by the projection device 200 as a light distribution LV having a light and dark boundary HD, which is changed to the second light beam S2 , which is a light and dark boundary HD. ), in particular the shape and position of the light-dark boundary HD is determined by the diaphragm edge region 104 of the diaphragm device 103 , and the diaphragm device 103 includes the boundary surfaces 105 , 106 of the light-transmissive body 100 . are formed by A partial light beam S1a of the first light beam S1 impinges on one of the interfaces 105, 106, i.e. the incidence boundary surface 105, and at least a portion S1a' of the partial light beam S1a affects the incidence boundary surface ( Completely or partially through the region 105' of 105 exits the light-transmissive body 100 as an exit light beam S3, and the exit light beam S3 exits one of the interface surfaces 105, 106, i.e. Fully, or partially, through the re-incident interface 106 , is incident back into the photoconductive body 100 as an incident light beam S4 , and the incident light beam S4 , or portions of the incident light beam, is formed by projection optics 200 . is projected as a beacon light beam SL into a region B of a light distribution located above the light-dark boundary, and is mapped to a light pattern, for example, as a mark light distribution SV.

Description

Illumination device for automobile headlamps and automobile headlamps

The present invention relates to a lighting device for a motor vehicle headlamp for generating a light distribution having a light/dark boundary, said lighting device comprising at least one light source, one light permeable body, at least A diaphragm device comprising one or more light input elements for inputting light emitted by one light source, and a projection device, wherein the light-transmissive body has a diaphragm edge region. a diaphragm device, wherein the diaphragm device is disposed between the light input element and the projection device in the light propagation direction, and wherein light from the at least one light source is incident through the light input element into the light transmissive body within the light transmissive body. propagating as a first lightbeam, and by means of a diaphragm the first lightbeam is changed into a second lightbeam in such a way that the second lightbeam which is changed is mapped by the projection device as a light distribution with a light-dark boundary, The shape and position of the boundary, in particular the light-dark boundary, is determined by the diaphragm edge region of the diaphragm device, and the diaphragm device is defined by the boundary surfaces of the light-transmissive body.

The invention also relates to a motor vehicle headlamp comprising at least one said lighting device.

The aforementioned lighting devices for motor vehicle headlamps, to motor vehicle headlamps comprising one or a plurality of such lighting devices are known from the prior art and are, for example, a low-beam light distribution, or a part of a low-beam light distribution, in particular low-beam light. It is used for realization of far-field light distribution of distribution.

According to legal regulations, the light distributions of vehicle headlamps must meet a set of prerequisites.

For example, according to ECE and SAE, minimum and maximum light intensities are required in defined areas above the LD line - ie outside the first illuminated area. These intensities function as so-called “sign lights” and enable, for example, illumination of overhead road signs. In this case, the luminous intensities used are usually on the order of the normal scattered light values, and thus much lower than the luminances below the shading line, but the preset minimum luminous intensities must be exceeded. The required light value should be achieved with as little diaphragm action as possible.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a lighting device for automobile headlamps used to generate the above-described "mark light".

The above object is that by means of the lighting device mentioned in the introduction, according to the invention, a partial light beam of a first light beam strikes one of the interfaces, ie on an incident interface, and at least a part of the partial light beam completely passes through the area of the incident interface. or partially exits the light-transmissive body as an outgoing lightbeam, the outgoing lightbeam enters the photoconductive body completely, or partially, through one of the interfaces, i.e. the re-incident interface, back into the photoconductive body as an incident lightbeam, and or portions of this incident light beam are projected by means of the projection optics as a beacon light beam into a region of the light distribution located above the light-dark boundary, and resolved, for example, through mapping to a light pattern as a mark light distribution.

According to the invention, the incident interface, or region of the incident interface, is formed and/or arranged in such a way that light can exit the light-transmissive body. This can be done by, for example, that the area of the incident interface is tilted in such a way that, relative to the optical axis of the projection device or of the photoconductive body, the impinging light can be emitted from the photoconductive body rather than being reflected (total reflection) or absorbed. is carried out

In this way, the outgoing light, which is not particularly absorbed, can again enter the body from the other side of the beam stop, and thus arrive at the exit surface of the projection device and thereby be mapped above the shading line.

Through the angle of incidence and the size of the area that can also represent the entire incident interface in extreme cases, the amount of emitted light and, in part, the position within the light pattern can also be controlled, in order to meet legal beacon requirements.

The beacon light is produced by a single component in a desirable manner, no further components or additional lighting devices are required.

Preferably, light beams not used in the light pattern, ie beams that are not incident back into the photoconductive body, are preferably absorbed so that the scattered light can be suppressed.

For example, the two interfaces are formed as planar surfaces extending transverse to the optical axis. Both surfaces are inclined at an angle with respect to the optical axis. In this case, the area of the incident interface provided for the targeted light output is typically inclined to a slightly different degree than the remainder of the incident interface.

Generally preferably, at least the region of the incident interface is in such a way that light can completely or partially exit the light-transmissive body as an outgoing light beam and impinge on the re-incident interface, in particular with respect to the optical axis of the projection device is inclined, and the re-incident interface is inclined in particular with respect to the optical axis of the projection device in such a way that the outgoing light beam can be fully or partially incident through one of the interfaces back into the photoconductive body as an incident light beam.

Or, generally preferably, in such a way that the incident light beam intersects the optical axis of the projection device on its path through the photoconductive body and is then projected by the projection device into the front region of the photoconductive body, the re-incident interface is in particular inclined with respect to the optical axis of the projection device, and/or the region of the incident interface and the re-incident interface are in particular inclined with respect to the optical axis of the projection device and are also inclined at an angle to each other as well.

As already described above, the re-incident interface can be formed as a planar surface.

According to what has been found to be preferred, the re-incident interface is formed curved in horizontal sections.

In this case, for example, the re-incident interface can be convexly curved in horizontal sections, the re-incident interface can be convexly curved, for example in many horizontal sections, or preferably in all horizontal sections, alternatively, the re-incident interface is concavely curved in horizontal cross-sections, and the re-incident interface is concavely curved, for example in many horizontal cross-sections, or preferably in all horizontal cross-sections.

Typically, the re-entry interface has a convex or concave curvature in all horizontal cross-sections (except for sections transitioning to a straight region, eg to the region of the stop edge).

Also, the curvature may be concave in many areas and convex in other areas. In this way, an optimal matching of the light distribution produced by the light beams incident back into the photoconductive body through the re-incident interface can be performed.

The generally concave configuration offers the advantage that the width of the indicator light distribution is enlarged based on the scattering lens action.

The convex configuration provides an advantage that the width of the distribution of the indicator light can be enlarged while total reflection does not occur at the side interfaces of the photoconductor. In that way, particularly narrow optics (small horizontal dimensions) can be used.

Also, the intersection curves resulting from intersecting the re-incident interface with horizontal planes extending parallel to the optical axis of the projection device, for example, may each have one vertex.

In this case, on the intersection curve, points having the maximum normal interval to the straight line connecting the two outermost points of each intersection curve to each other are referred to as vertices.

In this case, the vertices of the intersecting curves may lie on the optical axis during projection into a horizontal plane comprising the optical axis of the projection optics.

In this case, in particular, the shape of the intersecting curves may be symmetric with respect to the optical axis next to the vertex during projection into a horizontal plane.

Preferably, the incident interface can be formed and arranged in such a way that light beams impinging on the incident interface, preferably all light beams impinging on the incident interface, pass through the incident interface orthogonally, and/or re-incident The interface can be formed and arranged in such a way that the light beams of the outgoing light beam, preferably all the light beams of the outgoing light beam, are orthogonally incident on the photoconductive body through the re-incident interface. For this purpose, for example, in vertical sections passing through the optical axis and/or parallel to the optical axis, the two boundary surfaces (ie the intersecting straight lines of the boundary surfaces formed) are approximately normal to each other. With this arrangement, unintended color effects are prevented.

For example, the projection device is formed as or comprises a projection lens assembly, eg the projection lens assembly consists of one projection lens.

Preferably, the photoconductive body and the projection device are integrally formed. Furthermore, in a preferred manner, the light input element is formed integrally with the photoconductive body. Particularly preferably, the optical lens element(s), the photoconductive body and the projection device are formed integrally with each other, in particular formed from a single photoconductive material to form a single body.

The photoconductive body is preferably a solid body as discussed in much more detail by way of example in the drawing description. Particularly preferably, the projection device and the light input element are also integral components of the photoconductive body, ie together form a single body (also referred to below as “optical body”), or a single part.

Preferably, the area into which the incident light beam or portions thereof is projected spans the 0° - 0° (HH) line in the vertical direction in the light pattern, ie about 1° to 6° above the horizon, preferably It extends over a region of about 1.5° to 4.5°.

Also, alternatively, or in addition thereto, the area into which the incident light beam or portions thereof is projected may have an angle of about -24° to +24°, preferably about -18° to +18° in the horizontal direction in the light pattern. It may extend over the area. For example, by the lighting device that satisfies the far-field light distribution and the beacon light, even if the lighting device and thus the far-distance light distribution are also not rotated, the beacon light values complying with the law can be realized even in the bending light.

Further, the stop edge region may comprise at least one stop edge extending substantially transverse to the optical axis of the projection device.

For example, the diaphragm edge is a single edge. However, a double edge may also exist, in which case the edges may be arranged one after another in the light exit direction. Edge-to-edges can be formed as sharp as possible, or, for example, can be rounded. The diaphragm edge region may retain the same normal spacing everywhere, in the direction transverse to the optical axis X, in a horizontal plane, for example a horizontal plane comprising the optical axis X, to said horizontal plane. However, the stop edge region in different sections may have different (vertical) normal spacings up to the plane. For example, in the first section the stop edge region can have a first normal spacing to the plane, and in the second section it can have a relatively larger second normal spacing. The different sections may be connected to each other via an obliquely extending section. In this way, an asymmetric contrast limit can be created.

In the case of said photoconductive bodies, the asymmetry in the contrast limit is such that different regions of the diaphragm edge have different spacings in the horizontal direction, ie in the light propagation direction, or in the direction of the optical axis, normal to the optical axis, up to the vertical plane. can be achieved through

The light input element preferably comprises a light-forming optical system that forms the light emitted by the at least one light source in such a way that it is emitted substantially into an aperture edge region of the aperture device.

The foregoing description of the collection of light beams onto the focal or focal plane of the projection device located within the diaphragm edge region, or substantially within the diaphragm edge region, describes a simplified description of a light source in the form of a point. In the case of used, real and spatially extending light sources (eg LED chips, eg LED chips with an emission edge length of 1 mm), eg on the interface of the photoconductive body (and on the previously discussed area from which the light is emitted) ) and the unintended light used according to the invention is reduced.

For example, the light forming optical system is a collimator, or the light forming optical system includes a collimator. Still further, the light input element may comprise deflection means, for example as part of the light-forming optics, for example used for deflecting the light of one or more reflective surfaces, preferably at least one light source, in an intended direction. and one or more surfaces through which light is totally reflected.

The at least one light source may for example be arranged in the region of the optical axis of the optical body and may have a main radiation direction approximately in the direction of the optical axis. However, the at least one light source may be positioned above or below the optical axis and may emit light at an angle greater than 0° relative to the optical axis, for example less than 90° relative to the optical axis. In particular for the arrangement of such light sources, deflection means are preferred.

For example, the light-forming optics are further configured in such a way that they focus the light at a focus, but also in such a way that the light is directed vertically higher and above the diaphragm edge. Thereby, emission of the light distribution along the VV line from the HV point down to just before the vehicle can be achieved. In this way and in this way, the photoconductive body according to the invention forms a far-field light distribution.

Preferably, the stop edge region lies substantially at a focal line or focal surface of the projection device.

The focal line is preferably located below the diaphragm edge and extends horizontally through the focal point F and transversely to the optical axis of the projection device, in particular vertically.

Further, the outer surface of the projection apparatus may be formed through a groove-like structure in the smooth base surface, wherein the grooves forming the groove-like structure extend in a substantially vertical direction, preferably in the horizontal direction, each of two positioned next to each other The grooves are separated in particular by means of a raised portion which extends substantially vertically and preferably over the entire vertical extension of the grooves.

In this way, the beacon light area can be broadened in the horizontal direction as desired.

For example, the at least one light source includes one light emitting diode or a plurality of light emitting diodes.

In the following the invention is discussed in more detail with reference to the drawings.

1 is a first perspective view showing the main components of an embodiment according to the invention of a lighting device for a motor vehicle headlamp;
FIG. 2 is a vertical cross-sectional view of the illumination unit of FIG. 1 along a vertical plane passing through the optical axis;
Fig. 3 is a detailed view showing the portion cut out in Fig. 2 in the region of the diaphragm edge region of the photoconductive body;
4 is an exemplary schematic diagram showing the light distribution produced by the lighting unit according to the invention;
5 is a perspective view of another embodiment of a lighting unit according to the present invention viewed from below.
6 is a schematic diagram schematically illustrating a plurality of horizontal cross-sections parallel to the optical axis X passing through the illumination unit of FIG. 5 .
7 is a perspective view of another embodiment of a lighting unit according to the present invention viewed from below.
8 is a schematic diagram schematically illustrating a plurality of horizontal cross-sections parallel to the optical axis X passing through the illumination unit of FIG. 7 .

In the following, various exemplary embodiments of a lighting device according to the invention are described. In this case, the basic operating principle is first discussed in more detail according to FIG. 1 . The details, and optional features described in accordance with FIG. 1, may be realized in other embodiments of the invention - although not explicitly stated below. Differences between individual embodiments are explicitly stated below.

1 shows a lighting device 1 for a motor vehicle headlamp for generating a light distribution with a light-dark boundary. The lighting device 1 comprises, for example, at least one light source 10 with one or more LEDs, and an optical body 110 in which the light of the at least one light source 10 propagates. include

In the illustrated example, the optical body 110 is a light transmissive formed integrally with the light input element 101 for inputting light emitted by the at least one light source 10 and integrally with the projection device 200 . Consists of a body (100).

Preferably, the optical body 110 is a solid body, ie a body that does not contain through openings or aperture connections. The transparent, light-transmitting material forming the body 110 has a refractive index greater than that of air. The material contains, for example, PMMA (polymethylene methacrylate) or PC (polycarbonate), and is particularly preferably formed therefrom. However, the body 110 may be made of a glass material, in particular an inorganic glass material.

The optical body 110 , in particular the light transmissive body 100 , comprises a diaphragm device 103 having an diaphragm edge region 104 , the diaphragm device 103 comprising a light input element 101 and a projection device ( 200) are placed between

As can be well inferred from FIG. 1 , but from FIG. 2 and in particular from FIG. 3 , the diaphragm device 103 is formed by two interfaces 105 , 106 of the light-transmissive body 100 , these interfaces being In the diaphragm edge region 104, in particular at the common diaphragm edge, they meet.

In the following, reference is made to FIG. 2 for the basic operating principle of the illustrated lighting device. In other words, via the light input element 101 , the light of the at least one light source 10 is input into the light-transmissive body 100 and propagates as a first light beam S1 in the light-transmissive body 100 . The light input element 101 , which is formed for example as a collimator, is configured in such a way that the light of the at least one light source is mainly focused into the stop edge region 104 . The aperture edge region 104 is located at the focal point F to the focal plane FB of the projection device 200 .

By means of the diaphragm device 103 , the first light beam S1 is mapped in such a way that the second light beam S2 which is changed is mapped as a light distribution LV with a light and dark boundary HD by means of the projection device 200 . , is changed to the second light beam S2 (see Fig. 4, in which an exemplary light distribution is shown). The shape and position of the light-dark boundary HD, in particular the light-dark boundary HD, is determined by the diaphragm edge region 104 of the diaphragm device 103 .

The illustrated light distribution LV is a conventional far-field light distribution.

In the illustrated example according to FIGS. 1-3 , the two surfaces 105 , 106 are planar surfaces extending transversely to the optical axis X of the optical body 110 (or the projection apparatus 200 ). is formed The two surfaces are each inclined with respect to the optical axis X by an angle α, β. Preferably, one of the two surfaces, in particular each of the two surfaces 105 , 106 , extends horizontally in the transverse direction at an angle of 90° to the optical axis X.

The optical axis X refers to the optical axis of the optical body 110 , for example, a centerline of the optical body 110 defined in relation to the vertex of the exit lens.

As described above, although most of the light from the light source is directed into the stop edge region 104 , it is not prevented that the light also strikes on the interface 105 . The light may cause scattered light that is not intended in a typical manner, therefore typically the region 105 has for example an absorbing layer, or is tilted in such a way that the light is emitted into the non-critical region.

The present invention now allows light impinging on the surface 105 to be utilized as described below. In short, the partial light beam S1a of the first light beam S1 impinges on the interfaces 105 , which are also referred to as incidence interfaces hereinafter, as described. The surface 105 is now a light-transmissive body in which at least a portion S1a' (see FIG. 3 ) of the partial light beam S1a passes through a corresponding region 105 ′ of the incident interface 105 , as a so-called outgoing light beam S3 . The region 105 ′ is formed in such a way that it can be emitted at 100 . The region 105 ′ is, for example, a planar surface 105 ′ which is, for example, located inside the surface 105 and inclined with respect to the optical axis X at another angle φ. Now the angle α of the surface 105 is chosen so that the downward refracting of the light composed of the beam S1a does not cause a detrimental effect, whereas the angle ϕ is the angle from which the light can exit and other opposing surfaces 106 ), ie in such a way that it is deflected in the form of the light beam S3 to the so-called re-incident plane.

After incidence, and a corresponding deflection at the surface 106 , the light beam propagates again in the photoconductive body 100 as an incident light beam S4 , from which the light beam (or parts thereof) is transmitted to the projection optics 200 . ) and is projected as a beacon light beam SL (Fig. ).

In this case, the angle β at which the surface 106 is inclined with respect to the optical axis X is such that the light beam S3 can be incident back into the optical body 110 and beyond the optical axis X the projection device 200 . ) is selected in a biased way.

Area B, into which the incident light beam S4 or portions thereof is projected, spans in the vertical direction in the light pattern over an area of about 1° to 6° above the HH line, preferably 1.5, as shown. It extends over the region of ° to 4.5 °.

The region B extends in the horizontal direction typically over a region of about -10° to +10°, preferably -8° to +8°.

In FIG. 4 , in addition to the region SV, still two hatched regions are also shown. In short, the two areas are illuminated by the indicator light of the lighting device when the lighting device, or a headlamp comprising at least one said lighting device, is rotated left to right during a curve driving, thereby -18° to A region of +18°, or even a region of -24° to +24°, can be correspondingly illuminated.

In general, the projection apparatus 200 is formed, for example, as, or includes, a projection lens assembly. Specifically, the projection apparatus 200 includes (or consists of) the boundary surface 201 that limits the optical body 110 toward the front in the illustrated example, and the boundary surface 201 Light propagating through the optical body, in particular the light beams S4 , is mapped to the front region of the optical body 110 as a light distribution. In order to achieve a corresponding deflection through light refraction of the light beams during exit through the light exit surface 201 , the light exit surface is correspondingly shaped, in particular curved. In this case, preferably, the interface 201 is formed to be convex. In the example shown, the interface 201 is in this case convexly curved in vertical sections, whereas in horizontal sections it extends straight parallel to the optical axis.

The widening of the region SV in the horizontal direction is formed through the grooved structure 202 on the base surface 201 in which the outer surface or the boundary surface 201 of the projection apparatus 200 is smooth, and a groove forming the grooved structure The grooves extend in a substantially vertical direction, preferably in the horizontal direction, respectively, when each two grooves are separated by a raised portion that extends substantially vertically and preferably extends over the entire vertical extension of the grooves. can be achieved.

5 and 6 show another variant of the lighting device 1 according to the invention. The modified example is distinguished from the embodiment shown in FIG. 1 in that the re-incident surface 106 is formed to be curved instead of flat. Specifically, in FIG. 6 , in horizontal cross-sections, parallel to the optical axis X passing through the surface 106 , it is confirmed that the intersecting curves 106a1 , 106a2 formed extend concavely. In this case, FIG. 6 shows three cross-sections projected on a common plane and positioned superimposed on each other at different heights, wherein the cut is performed in the region of the diaphragm edge 104 , where the corresponding intersection curve is (exceptionally ) (in the example shown) extending in a straight line resulting in a straight diaphragm edge 104 . In the illustrated embodiment, a straight light-dark boundary is created, for this purpose the edge 104 extends in a straight line and transverse to the optical axis X. In other words, in particular the edge 104 extends normal to the axis X, and all points of the edge 104 have the same normal spacing with respect to the horizontal plane passing through the axis X. Conversely, in the case of a light-dark boundary with asymmetry (not shown), the edge comprises sections of two or usually three different heights with respect to the horizontal plane passing through the axis X.

In the example shown, the intersection curves 106a1 , 106a2 each extend symmetrically with respect to the optical axis X, such that the respective intersection curves 106a1 , 106a2 extend in a horizontal plane containing the optical axis X. When projecting the intersection curve, we have the vertices Pa1 and Pa2 located on the optical axis X.

In FIG. 6 , the shape of the light beams S4 after re-entering the optical body through the surface 106 is shown. As can be seen, as a result of the special configuration of the surface 106 , the beams S4 extend in a divergence manner, whereby the beacon light beam is broadened to illuminate a wide horizontal region of the light distribution.

7 and 8 , another variant of the lighting device 1 according to the invention is shown. The modified example is distinguished from the embodiment shown in FIG. 1 in that the re-incident surface 106 is formed to be curved instead of flat. Specifically, in FIG. 8 , it is confirmed that in the horizontal sections parallel to the optical axis X passing through the surface 106 , the formed intersection curves 106b1 , 106b2 extend convexly. In this case, FIG. 8 shows three cross-sections projected on a common plane and positioned superimposed on each other at different heights, wherein the cut is performed in the region of the diaphragm edge 104 , where the corresponding intersecting curve is (with the exception of ) (in the example shown) extending in a straight line resulting in a straight diaphragm edge 104 . In the example shown, the intersection curves 106b1 , 106b2 each extend symmetrically with respect to the optical axis X, such that the respective intersection curves 106b1 , 106b2 extend into a horizontal plane containing the optical axis X. When projecting the intersection curve, we have the vertices Pb1 and Pb2 located on the optical axis X.

In FIG. 8 , the shape of the light beams S4 after re-entering the optical body through the surface 106 is shown. As can be seen, as a result of the special configuration of the surface 106 , the beams S4 converge together and then extend in a diverging manner. In this case, preferably, the matching is such that the beams S4 intersect substantially at a point on the outside of the optical body 110 , ie in particular after the exit surface of the projection device 200 , and then thereafter with each other. It is carried out in a way that proceeds by divergence between the liver. Corresponding matching may be performed via the radii of curvature of the curves 106b2, 106b1. In other words, with radii of curvature of suitable size, the resulting intersection moves forward of the optic in the light exit direction. If the position of the intersection is in front of the optic, the width of the optic can also be chosen to be relatively smaller, in which case the beams S4 are not totally reflected at the side surfaces.

In the case of conventional optical bodies, it is usually necessary to provide a body that absorbs light on the surface 105 , for example on the outside of the surface 105 . However, in the case of the present invention, for example, the entire surface 105 is formed as the light exit surface 105', or the area of the surface 105, from which the interfering light beams are emitted, receives light as desired in the scope according to the invention. In a suitable configuration formed as the exitable region 105', the absorbing additional component may be omitted.

Claims (16)

A lighting device (1) for a motor vehicle headlamp for generating a light distribution having a light-dark boundary, said lighting device comprising:

at least one light source (10);

One light transmissive body 100,

one or more light input elements 101 for inputting light emitted by at least one light source 10, and

comprising one projection device 200,
The optically transmissive body 100 comprises a diaphragm device 103 having an diaphragm edge region 104 , wherein the diaphragm device 103 is disposed between the light input element 101 and the projection device 200 in the light propagation direction. becomes,
and the light of the at least one light source 10 is incident into the light-transmissive body 100 through the light input element 101 and propagates in the light-transmissive body 100 as a first light beam S1, and a diaphragm device ( 103 ), the first light beam S1 is configured in such a way that the modified second light beam S2 is mapped as a light distribution LV with a light and dark boundary HD by the projection device 200 , 2 light beam S2, the shape and position of the light-dark boundary HD, or light-dark boundary HD, is determined by the aperture edge area 104 of the aperture device 103,
And the diaphragm device 103 is formed by the boundary surfaces 105 and 106 of the light-transmitting body 100, in the vehicle headlamp lighting device,
The partial light beam S1a of the first light beam S1 impinges on one of the interface surfaces 105 and 106, namely the incidence interface 105, and at least a part S1a' of the partial light beam S1a exits the light-transmissive body 100 as an exit light beam S3 completely or partially through a region 105 ′ of the incident interface 105 ,
and the outgoing light beam S3 is completely or partially incident through one of the interfaces 105 , 106 , ie the re-incident interface 106 , back into the light-transmissive body 100 as an incident light beam S4 . becomes,
and the incident light beam S4, or portions of the incident light beam, is projected by the projection device 200 as a mark light beam SL into a region B of light distribution located above the light-dark boundary, and mapped to the light pattern as light light distribution (SV),
The re-incident interface (106) is a lighting device for a vehicle headlamp, characterized in that formed by being curved in horizontal sections. The re-incident interface ( 106 , or inclined with respect to the optical axis X of the projection device 200 , and the re-incident interface 106 is such that the outgoing light beam S3 106) in such a way that it can be fully or partially incident back into the light-transmissive body 100 as an incident light beam S4, or at an angle with respect to the optical axis of the projection device 200. A lighting device for automotive headlamps, characterized. 3. The projection device (200) according to claim 2, wherein the incident light beam (S4) intersects the optical axis (X) of the projection device (200) on its path through the light-transmissive body (100) and then the re-incident interface 106 is inclined with respect to the optical axis X of the projection device 200 in such a way that it is projected into the front region of the light-transmissive body 100 by and the re-incident interface 106 is inclined with respect to the optical axis X of the projection device 200 and is also inclined at a predetermined angle to each other, or the re-incident interface 106 is the projection device 200 ) and the region 105 ′ and the re-incident interface 106 are inclined in particular with respect to the optical axis X of the projection device 200 and continue to be mutually predetermined. A lighting device for a vehicle headlamp, characterized in that inclined at an angle. delete A lighting device (1) for a motor vehicle headlamp for generating a light distribution having a light-dark boundary, said lighting device comprising:

at least one light source (10);

One light transmissive body 100,

one or more light input elements 101 for inputting light emitted by at least one light source 10, and

comprising one projection device 200,
The optically transmissive body 100 comprises a diaphragm device 103 having an diaphragm edge region 104 , wherein the diaphragm device 103 is disposed between the light input element 101 and the projection device 200 in the light propagation direction. becomes,
and the light of the at least one light source 10 is incident into the light-transmissive body 100 through the light input element 101 and propagates in the light-transmissive body 100 as a first light beam S1, and a diaphragm device ( 103 ), the first light beam S1 is configured in such a way that the modified second light beam S2 is mapped as a light distribution LV with a light and dark boundary HD by the projection device 200 , 2 light beam S2, the shape and position of the light-dark boundary HD, or light-dark boundary HD, is determined by the aperture edge area 104 of the aperture device 103,
And the diaphragm device 103 is formed by the boundary surfaces 105 and 106 of the light-transmitting body 100, in the vehicle headlamp lighting device,
The partial light beam S1a of the first light beam S1 impinges on one of the interface surfaces 105 and 106, namely the incidence interface 105, and at least a part S1a' of the partial light beam S1a exits the light-transmissive body 100 as an exit light beam S3 completely or partially through a region 105 ′ of the incident interface 105 ,
and the outgoing light beam S3 is completely or partially incident through one of the interfaces 105 , 106 , ie the re-incident interface 106 , back into the light-transmissive body 100 as an incident light beam S4 . becomes,
and the incident light beam S4, or portions of the incident light beam, is projected by the projection device 200 as a mark light beam SL into a region B of light distribution located above the light-dark boundary, and mapped to the light pattern as light light distribution (SV),
The re-entry interface (106) is convexly curved in horizontal sections, and the re-incident interface (106) is convexly curved in some horizontal sections or in all horizontal sections. A lighting device (1) for a motor vehicle headlamp for generating a light distribution having a light-dark boundary, said lighting device comprising:

at least one light source (10);

One light transmissive body 100,

one or more light input elements 101 for inputting light emitted by at least one light source 10, and

comprising one projection device 200,
The optically transmissive body 100 comprises a diaphragm device 103 having an diaphragm edge region 104 , wherein the diaphragm device 103 is disposed between the light input element 101 and the projection device 200 in the light propagation direction. becomes,
and the light of the at least one light source 10 is incident into the light-transmissive body 100 through the light input element 101 and propagates in the light-transmissive body 100 as a first light beam S1, and a diaphragm device ( 103 ), the first light beam S1 is configured in such a way that the modified second light beam S2 is mapped as a light distribution LV with a light and dark boundary HD by the projection device 200 , 2 light beam S2, the shape and position of the light-dark boundary HD, or light-dark boundary HD, is determined by the aperture edge area 104 of the aperture device 103,
And the diaphragm device 103 is formed by the boundary surfaces 105 and 106 of the light-transmitting body 100, in the vehicle headlamp lighting device,
The partial light beam S1a of the first light beam S1 impinges on one of the interface surfaces 105 and 106, namely the incidence interface 105, and at least a part S1a' of the partial light beam S1a exits the light-transmissive body 100 as an exit light beam S3 completely or partially through a region 105 ′ of the incident interface 105 ,
and the outgoing light beam S3 is completely or partially incident through one of the interfaces 105 , 106 , ie the re-incident interface 106 , back into the light-transmissive body 100 as an incident light beam S4 . becomes,
and the incident light beam S4, or portions of the incident light beam, is projected by the projection device 200 as a mark light beam SL into a region B of light distribution located above the light-dark boundary, and mapped to the light pattern as light light distribution (SV),
The re-entry interface (106) is concavely curved in horizontal cross-sections, and the re-incident interface (106) is concavely curved in some horizontal cross-sections or in all horizontal cross-sections. A lighting device (1) for a motor vehicle headlamp for generating a light distribution having a light-dark boundary, said lighting device comprising:

at least one light source (10);

One light transmissive body 100,

one or more light input elements 101 for inputting light emitted by at least one light source 10, and

comprising one projection device 200,
The optically transmissive body 100 comprises a diaphragm device 103 having an diaphragm edge region 104 , wherein the diaphragm device 103 is disposed between the light input element 101 and the projection device 200 in the light propagation direction. becomes,
and the light of the at least one light source 10 is incident into the light-transmissive body 100 through the light input element 101 and propagates in the light-transmissive body 100 as a first light beam S1, and a diaphragm device ( 103 ), the first light beam S1 is configured in such a way that the modified second light beam S2 is mapped as a light distribution LV with a light and dark boundary HD by the projection device 200 , 2 light beam S2, the shape and position of the light-dark boundary HD, or light-dark boundary HD, is determined by the aperture edge area 104 of the aperture device 103,
And the diaphragm device 103 is formed by the boundary surfaces 105 and 106 of the light-transmitting body 100, in the vehicle headlamp lighting device,
The partial light beam S1a of the first light beam S1 impinges on one of the interface surfaces 105 and 106, namely the incidence interface 105, and at least a part S1a' of the partial light beam S1a exits the light-transmissive body 100 as an exit light beam S3 completely or partially through the region 105 ′ of the incident interface 105 ,
and the outgoing light beam S3 is completely or partially incident through one of the interfaces 105 , 106 , ie the re-incident interface 106 , back into the light-transmissive body 100 as an incident light beam S4 . becomes,
and the incident light beam S4, or parts of the incident light beam, is projected by the projection device 200 as a mark light beam SL into a region B of light distribution located above the light-dark boundary, and mapped to the light pattern as light light distribution (SV),
Intersecting curves 106a1, 106a2; 106b1, 106b2) resulting from intersecting the re-incident interface 106 with horizontal planes extending parallel to the optical axis X of the projection apparatus 200 are A lighting device for an automobile headlamp, characterized in that it has one vertex (Pa1, Pa2; Pb1, Pb2)). 8. The projection device (200) according to claim 7, wherein the vertices (Pa1, Pa2; Pb1, Pb2) of the intersection curves (106a1, 106a2; 106b1, 106b2) are in a horizontal plane comprising the optical axis (X) of the projection device (200). Illumination device for a motor vehicle headlamp, characterized in that it is located on the optical axis (X) during projection. 9. A shape according to claim 8, wherein the shape of the intersection curves (106a1, 106a2; 106b1, 106b2) is symmetric with respect to the optical axis (X) next to the vertex (Pa1, Pa2; Pb1, Pb2) during projection into a horizontal plane. A lighting device for a vehicle headlamp, characterized in that it is. 10. The projection device (200) according to any one of claims 1 to 3 and 5 to 9, wherein the projection device (200) is formed as or comprises a projection lens assembly, the projection lens assembly comprising: A lighting device for a vehicle headlamp, characterized in that it consists of one projection lens. 10. The method according to any one of claims 1 to 3 and 5 to 9, wherein the light-transmissive body (100) and the projection device (200) are integrally formed with the light input element (101). A lighting device for automotive headlamps, characterized. 10. The light pattern according to any one of claims 1 to 3 and 5 to 9, wherein the area (B) into which the incident light beam (S4) or parts of the incident light beam (S4) is projected into is perpendicular in the light pattern. direction above the HH line over a region of 1° to 6°, or over a region of 1.5° to 4.5°, or an area in which the incident light beam S4 or portions of the incident light beam S4 are projected inward. (B) extends over a region of -24° to +24°, or -18° to +18° in the horizontal direction in the light pattern, or the incident light beam S4 or portions of the incident light beam S4 are The area B projected inward extends over an area of 1° to 6° above the HH line in the vertical direction in the light pattern, or over an area of 1.5° to 4.5°, and the incident light beam S4 or the incident light beam S4 A motor vehicle headlamp, characterized in that the region (B) into which the portions of the light beam (S4) are projected inwardly extends over a region of -24° to +24°, or -18° to +18° in the horizontal direction in the light pattern. for lighting devices. 10. The diaphragm according to any one of claims 1 to 3 and 5 to 9, wherein the light input element (101) emits light (S1) by the at least one light source (10) to the aperture. and light-forming optics for forming the light in a manner radiating into an aperture edge region 104 of the device 103 , and wherein the aperture edge region 104 is substantially from the focal line of the projection device 200 to the diaphragm edge region 104 . A lighting device for a vehicle headlamp, characterized in that it is located in the focal plane (FB). 10. The apparatus according to any one of claims 1 to 3 and 5 to 9, wherein the outer surface of the projection device (200) is formed through a grooved structure in the smooth base surface, forming the grooved structure. the grooves extending in the vertical direction, and each two grooves positioned side by side in the horizontal direction are separated by a raised portion extending substantially vertically and extending over the entire vertical extension of the grooves. Lighting device for lamps. 10. A method according to any one of claims 1 to 3 and 5 to 9, wherein the incident interface (105) comprises light beams (S1a', S1a) impinging on the incident interface (105), or Formed and arranged in such a way that all light beams impinging on the incident interface 105 pass through the incident interface 105 orthogonally, and/or the re-incident interface 106 is the The light beams, or all light beams of the outgoing light beam S3, are formed and arranged in such a way that they are orthogonally incident on the light transmissive body 100 through the re-incident interface 106, or the incident interface 105 is , the light beams S1a', S1a impinging on the incident interface 105, or all light beams impinging on the incident interface 105 are formed and arranged in such a way that they pass through the incident interface 105 orthogonally And, the re-incident interface 106 is, the light beams of the outgoing light beam S3, or all the light beams of the outgoing light beam S3 are orthogonal to each other, so that the light transmissive body 100 passes through the re-incident interface 106 ) A lighting device for a vehicle headlamp, characterized in that it is formed and arranged in such a way that it is incident into the interior. A vehicle headlamp, characterized in that it comprises at least one lighting device according to any one of claims 1 to 3 and 5 to 9.

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