DE102016102033A1 - Motor vehicle headlight with a liquid crystal matrix component - Google Patents

Abstract

A motor vehicle headlight with a light source, a liquid crystal matrix component and a projection lens is presented. The liquid crystal matrix component is illuminated by the light source. The projection lens collects light emanating from the liquid crystal matrix component and directs that light into the front of the headlight. Between the light source and the liquid crystal matrix component, a polarizing beam splitter is arranged, which divides light incident from the light source into two beam paths. In a matrix beam path, first light components of a first polarization direction propagate to the fluorescence matrix component. In a base beam path, second light components of a second polarization direction propagate without touching the liquid crystal matrix component to a first optical element, which directs incident light in the base beam path onto the projection lens.

Description

The present invention relates to a motor vehicle headlight according to the preamble of claim 1.

Such a headlight is from the DE 10 2014 213 636 A1 known. It has a light source, a liquid crystal matrix component, which is arranged in the beam path of light emanating from the light source.

Other headlamps that use liquid crystal matrix components for generating light distributions are known from US Pat DE 10 2013 113 807 A1 or DE 102 013 088 811 A1 known. Liquid crystal matrix components are used as a display (LCD) but also in video projectors. When used in headlamps, the ambient conditions prevailing there, such as strongly changing temperatures, form obstacles to overcoming the application. Another disadvantage is a rather weak contrast ratio between luminous and non-luminous matrix elements.

It is also disadvantageous that the function of the liquid-crystal matrix elements presupposes, as brightness-controllable segments of a light exit surface of the liquid-crystal matrix component, illumination with linearly polarized light. Light of conventional light sources is initially not polarized and has two portions of mutually orthogonal polarization directions. When using liquid crystal matrix devices, the light is polarized before it strikes the liquid crystal matrix device. The polarization is usually carried out by a polarizing filter, which passes only one of the two shares almost unchanged and absorbs or reflects the other part.

From the DE 10 2013 113 807 A1 It is known to use both shares to generate a light distribution. This document shows a polarizing beam splitter which splits the unpolarized light of a light source into two parts of different polarization. The two components illuminate different regions (matrix elements) of a liquid-crystal matrix component whose transmission can be controlled separately.

From the prior art according to the aforementioned DE 10 2014 213 636 A1 According to the invention, a polarizing beam splitter is arranged between the light source and the liquid crystal matrix component such that it divides the light incident from the light source into a matrix beam path and a base beam path, the matrix beam path consisting of light components of a first beam path Polarization direction consists and leads from the beam splitter to the liquid crystal matrix component and wherein the base beam path consists of light components of a second polarization direction and without touching the liquid crystal matrix component leads to a first optical element which focuses the incident light in the base beam.

Due to the division into two beam paths and the fact that light of both polarization directions is directed onto the projection lens, both light components can contribute to the generation of a spotlight distribution.

This improves the efficiency over the DE 10 2014 213 636 A1 quite considerably. The fact that the second beam path without touching the liquid crystal matrix component leads to a first optical element which bundles the incident light in the base beam, the light losses are avoided in the base beam path, which would occur if this proportion would also pass through the liquid crystal matrix component or reflected on the liquid crystal matrix component would have to be.

The invention allows in this way the efficient generation of a spotlight distribution. In the process, a rule-conforming basic light distribution or low-beam distribution is generated with the light propagating in the matrix beam path. Such a light distribution is characterized in particular by the fact that it does not generate unacceptable glare. When the headlamp is used as intended while driving, this light in particular illuminates an area of the apron of the motor vehicle below the horizon in an efficient manner. The second beam path could also be used to produce a low beam distribution or a high beam basic light distribution as shown in FIG DE 10 2008 036 193 occurs.

With the light propagating in the matrix beam path, a further light distribution supplementing this basic light distribution or low beam distribution to form an overall light distribution can be generated in advance of the vehicle. In this case, the brightness pattern of the further light distribution can be adjusted with a fineness determined by the number of matrix elements of the liquid crystal matrix. The further light distribution is also referred to below as the pixel light distribution. It lies in the apron of the vehicle predominantly above the horizon. A dazzling of other road users who are in the area illuminated by this further light distribution can be avoided or at least reduced by darkening the segment of the liquid matrix component illuminating this road user.

It is preferred that the headlamp comprises a projection lens, which is arranged and arranged to collect light emanating from the liquid crystal matrix component light of the light source and to direct in the apron of the headlamp.

A preferred embodiment is characterized in that the first optical element in the base beam path propagating light (low beam) focused in an intermediate image area, which lies in the base beam path between the first optical element and the projection lens, wherein a distance of the intermediate image area of the projection lens of the inter-frame focal length ( Distance of the focal point from the vertex of the lens surface facing the focal point) corresponds to the projection lens. The intermediate image area may be a flat or a curved surface.

As a result of these features, an inner light distribution is generated in the intermediate image area as the original image of the basic light distribution or the low-beam distribution, which is projected by the projection lens into the illumination zone in front of the vehicle.

A further preferred embodiment is characterized by a mirror aperture which has a diaphragm edge and which is arranged in the base beam path (dipped beam) between the first optical element and the projection lens such that the diaphragm edge lies at a distance from the projection lens, which is the inter-frame focal distance of the projection lens corresponds, and which mirror aperture extending from the diaphragm edge in a direction facing from the projection lens to the diaphragm edge direction.

As a result of these features, as long as the light exit surface of the liquid crystal matrix component is dark, the diaphragm edge is imaged as a sharp cut-off line. The fact that the aperture is realized as a mirror aperture with the said arrangement, a high efficiency is achieved, because not shaded for the generation of the dark area of the light distribution shading, but by the reflection contributes to the illumination of the bright area.

It is also preferable that the mirror aperture extends parallel to an optical axis of the projection lens.

A further preferred embodiment is characterized by a focusing third optical element which is arranged in the matrix beam path (pixel light) between the beam splitter and the intermediate image surface in such a way that it focuses light propagating in the matrix beam path into the intermediate image surface.

As a result, this light also contributes to the formation of the internal light distribution, which is imaged by the projection lens into the apron of the vehicle. A third optical element is disposed between the light source and the beam splitter and parallelizes the light emanating from the light source before striking the beam splitter.

It is also preferred that a fourth optical element in the base beam path (dipped beam) is arranged between the beam splitter and the first optical element such that it focuses light incident from the beam splitter into a focal region of the first optical element, and that light originating from the focal region Light source illuminated the first optical element.

Since the light of the light source for illuminating the liquid crystal matrix component is first parallelized by the third optical element, it may be difficult to generate a low beam distribution through an image taken with the first optical element. With the fourth optical element, the light passed through the polarizing beam splitter can be refocused. The focal region facing the first optical element can then serve as the light source, from the light of which the first optical element generates a low-beam light distribution.

In this context, it is advantageous if a first diaphragm is located between the beam splitter and the first optical element and projects into the base beam path. The aperture edge of this aperture is displayed as a cut-off line in the apron. This panel can connect in one piece on the side facing away from the edge of the mirror panel. But it is preferably not reflective.

It is also preferred that the diaphragm is located between the fourth optical element and the first optical element and projects into the base beam path. If a projection lens is not present, the diaphragm edge of this diaphragm is imaged by the first optical element as a light-dark boundary in the apron.

It is also preferred that the first diaphragm is movable between a first position, in which it does not protrude into the base beam path, and a second position, in which it projects into the base beam path.

As a result, the basic light or low-beam distribution can be generated both with and without imaging of the diaphragm edge as a sharp cut-off line.

It is also preferable that the polarizer is a thin-film polarizer.

Furthermore, it is preferred that the polarizer has the basic shape of a beam splitter cube which has a light entry surface facing the light source, a first light exit surface facing the liquid crystal matrix component, a second light exit surface facing the first optical element and a third light exit surface facing the projection lens, the light entry surface being curved in this way in that it collimates the light incident from the light source, and wherein the second light exit surface is curved so as to focus the exiting light into a focal region located between the second light exit surface and the first optical element, and wherein the third light exit surface is curved She focused light emerging in the intermediate image area. A first light exit surface faces the liquid crystal matrix component.

A further preferred embodiment is characterized in that the cover has a first region which is arranged so that it is preferably illuminated by propagating in the matrix beam light and there has a shape and / or coating in which the reflectance for the first Polarization direction is minimal, and that the cover plate has a second region which is arranged so that it is preferably illuminated by light propagating in the base beam path and which has there a shape and / or coating in which the reflectance for the second polarization direction is minimal. With minimal reflection, the transmission is maximum, which is favorable for a desired high efficiency.

It is also preferred that in the matrix beam path in the light path to the liquid crystal matrix component, a depolarizer is arranged, which converts the incident polarized light into unpolarized light, and that in the base beam path (low beam) in the light path after the beam splitter, a depolarizer is arranged, which polarized the incident Light converted to unpolarized light. As a result, unwanted reflection effects on reflective pavement and poor visibility for wearers of spectacles with polarization filters can be avoided.

Further advantages will be apparent from the dependent claims, the description and the attached figures.

It is understood that the features mentioned above and those yet to be explained below can be used not only in the particular combination given, but also in other combinations or in isolation, without departing from the scope of the present invention.

Embodiments of the invention are illustrated in the drawings and are explained in more detail in the following description. In this case, the same reference numerals in different figures denote the same or at least functionally comparable elements. In each case, in schematic form:

1 a first embodiment of a headlamp of a motor vehicle according to the invention;

2 different elements from the 1 together with a matrix beam path;

3 the object of 1 and 2 with a base beam path;

4 the basic beam path for a second embodiment;

5 a third embodiment;

6 a preferred embodiment of the beam splitter as intent optics; and

7 a light distribution, as generated by a further embodiment of a headlight according to the invention.

In detail, the shows 1 a first embodiment of a headlamp of a motor vehicle according to the invention. The headlight 10 has a housing 12 on, the light exit opening of a transparent cover 14 is covered.

Inside the case 12 there is a light source 1 , a first optical element 5 , a beam splitter 3 , a liquid crystal matrix device 4 , optionally a second optical element 6 , a third optical element 2 , a projection lens 7 and a controller 8th ,

The control unit 20 is set up, in particular programmed, the light source 1 and the properties of the liquid crystal matrix device 4 in response to signals from a driver request generator 18 or a higher-level light control device of the motor vehicle to control. The light source 1 preferably has at least one, but preferably a plurality of light-emitting diodes or laser diodes.

The third optical element 2 is in the bundle of the light source 1 outgoing light and is preferably realized as a lens, microlens or catadioptric attachment optics.

The beam splitter 3 is here shown schematically as a beam splitter cube, which consists of two prismatic halves, each having the shape of a rectangular and equilateral triangle in the plane of the drawing and which are along their respective right angle opposite base surfaces assembled into a cube. Deviating from this schematic representation, which allows a clear representation of the beam paths, the beam splitter is preferably a thin-film polarizer. The beam splitter 3 has a third optical element 2 facing light entry surface 03.01 , a liquid crystal matrix component 4 facing first light entry and exit surface 3.2 , a the first optical element 5 facing second light exit surface 3.3 and one of the projection lens 7 facing third light exit surface 3.4 on. An intermediate image area 9 lies between the optional second optical element 6 and a light entrance surface of the projection lens 7 ,

The 2 shows different elements from the 1 together with a matrix beam path 22 , The third optical element 2 parallelized by the light source 1 outgoing light. This light is not polarized. About the light source facing the light inlet surface of the beam splitter 3 the parallelized light enters the beam splitter 3 and inside the beam splitter 3 in a matrix beam path 22 and a base beam path 24 split. The second beam path 24 is in the 3 shown. The one in the matrix beam path 22 propagating light component is linearly polarized in a first direction. The in the basic beam path 24 propagating light component is linearly polarized in a second direction. The splitting takes place in the illustrated example in that the first fraction at the interface 3.0 of the beam splitter 3 is reflected to the side between the two prisms, while the second portion substantially without change of direction through the interface 3.0 passes through. The one in the matrix beam path 22 propagating light component passes over the first light exit surface 3.2 that is part of the liquid crystal matrix component 4 facing away from the beam splitter 3 and illuminates the liquid crystal matrix component divided into segments (matrix elements) 4 , The degree of reflection of each segment is determined by the controller 20 adjustable. This is possible, for example, with an LCoS component (Liquid Crystal on Silicon). A conventional LCoS device causes only the rotation of the polarization in a pixel. The light with the rotated polarization was then no longer at the beam splitter surface 3.0 reflected. Untwisted portions become at the beam splitter surface 3.0 back again towards the light source 1 reflected.

Each individually controllable as a matrix element of the liquid crystal matrix in its optical properties segment thus provides a pixel on the light exit surface of the liquid crystal matrix component 4 The first internal light distribution which arises in the sum of all the pixels on the light exit surface of the liquid crystal matrix component becomes if the optional second optical element 6 is present as an intermediate image in the intermediate image area 9 displayed. The resulting intermediate image, since it is still in the housing, also constitutes an internal light distribution. This second internal light distribution is produced by the projection lens 7 in front of the headlight 10 lying lighting zone projected. Thus, in a preferred embodiment, a high beam component of a total light distribution of the headlamp 10 generated. Individual segments of the high-beam component can be controlled in their brightness by controlling the brightness (or the polarization) of the associated matrix element of the liquid-crystal matrix component.

This proportion of the total light distribution is therefore also referred to as pixel light distribution.

All embodiments and embodiments may be with a depolarizer 13 be combined, in one or both beam paths 22 . 24 is arranged and converts the incident polarized light in unpolarized light. The depolarizer 13 For example, it may be a polarization mixer plate or a quarter-wave phase plate.

The 3 shows elements of the subject 1 and 2 with the basic beam path 24 , In the base beam path 24 Propagates the proportion of light from the light source 1 outgoing and into the beam splitter 3 incoming light, the substantially without change of direction by the beam-splitting interface 3.0 has passed through. This proportion is also linearly polarized. It has a polarization orthogonal to the polarization of the first component.

The second portion passes over the second light exit surface 3.3 of the beam splitter 3 that is the first optical element 5 facing away from the beam splitter 3 from and is from the first optical element 5 , which is a reflector here, so deflected that through the projection lens 7 passes through and distributed in advance of the headlight in the form of a basic light distribution or low beam distribution. The second beam path 24 is characterized in that it without touching the liquid crystal matrix component 4 to the first optical element 5 leads, which in the base beam path 24 incident light on the projection lens 7 directed.

The 4 shows the base beam path 24 for a second embodiment. The second embodiment differs from the first embodiment in the optical characteristics of the first optical element 5 and thereby, that this embodiment, a mirror aperture 8th having. The first optical element 5 is also a reflector here. Regardless of whether the first optical element 5 is realized as a reflector, lens or catadioptric optics, it is in particular by its shape and arrangement, optionally also by its refractive index, set up in the base beam path 24 propagating light into the intermediate image area 9 to focus. The intermediate image area 9 lies in the basic beam path 24 between the third optical element 5 and the projection lens 7 , wherein a distance of the intermediate image area 9 from the projection lens 7 the inter-frame section of the projection lens 7 equivalent. As a result, the focus becomes in a focal region of the projection lens 7 adjusting internal light distribution sharp in the illumination zone of the headlamp 10 projected.

The mirror aperture 8th has a bezel edge 8.1 and is in the base beam path 24 between the first optical element 5 and the projection lens 7 arranged so that the aperture edge 8.1 at a distance to the projection lens 7 is which of the inter-frame-side focal length of the projection lens 7 equivalent. The aperture edge 8.1 lies in the said focal area and is therefore as a sharp cut-off in the illumination zone of the headlamp 10 projected.

The mirror aperture 8th extends from the bezel edge 8.1 starting, in a direction leading to the direction in which the projection lens 7 lies, is opposite. This direction is preferably parallel to an optical axis of the projection lens 7 , The specular effect is preferred by a metallic coating of that side 8.2 the aperture 8th achieved which the first optical element 5 is facing.

The projection lens 7 forms both with the matrix beam path 22 generated pixel light distribution as well as with the base beam path 24 Generated basic light distribution or low beam distribution in the apron of the headlamp 10 so that there is a total of a composite of these two light distributions total light distribution arises.

The 5 shows a third embodiment. The third embodiment differs from the first two embodiments in that a fourth optical element 28 in the basic beam path 24 (Dipped beam) between the beam splitter 3 and the first optical element 5 is arranged so that it is from the beam splitter 3 incident light into a focal region of the first optical element 5 focused, and that emanating from the focal region light of the light source, the first optical element 5 illuminated. The focal region thus represents a kind of light source for polarized light.

5 also shows a second aperture 30 that is between the beam splitter 3 and the first optical element 5 located and in the basic beam path 24 More specifically, in the focal region of the fourth optical element 28 protrudes. As a result, a sharp cut-off line is generated in the focal area, which is separated from the first optical element 5 by direct imaging, so without the projection lens 7 (in the 5 not shown) to be deflected, in the apron of the headlamp 10 is directed. The aperture can thus be united with the mirror aperture of the preceding embodiment.

In one embodiment, the second aperture is located 30 between the fourth optical element 28 and the first optical element 5 and protrudes into the base beam path 24 into it, as he in the 3 is shown. This second beam path consists of largely parallel light. In contrast to the subject of 5 is the fourth optical element in such a beam path 28 unavailable. So it may be enough, the second aperture 30 without prior focusing by the fourth optical element 28 to use.

In a preferred embodiment, the second aperture 30 between a first position in which they are not in the basic beam path 24 protrudes, and a second position in which they are in the basic beam path 24 protrudes, movable. Thus, the sharp cut-off point in the formation of a total light distribution from both beam paths 22 . 24 be replaced by a less sharp light-dark transition to avoid disturbing effect in the overall light distribution, or to produce an alternative high beam distribution. This is the case when not projecting into the beam path aperture. The possibility of producing a sharply limited basic light distribution or low-beam distribution remains advantageously preserved. The sharp cut-off line is created with the aperture projecting into the beam path. The position of the second aperture 30 is also from the controller 20 controlled. In addition, the second aperture could 30 in a further embodiment also be used to the base beam path 24 completely block.

6 schematically shows a preferred embodiment of the beam splitter as a front optics. This beam splitter optical system differs from the beam splitter cube in that its first light entrance surface 03.01 , the second light exit surface 3.3 and the third light exit surface 3.4 are convexly curved. This has the advantage that the optical elements 2 . 28 and 6 can be omitted. As a result, the entire assembly is more compact and due to the smaller number of parts cheaper and less sensitive in terms of manufacturing tolerances.

Instead of serving to produce a low beam distribution, the second beam path 24 also serve to produce a different light distribution, for example a Teilfernlichtverteilung or serving for side illumination light distribution. The basic light or dipped beam is generated in this embodiment by a separate light module.

This has the advantage that the thermal load of the liquid crystal matrix component 4 , which is associated in particular with the absorption of light, is reduced since the light source 1 then, if only low beam is to be generated, can be completely switched off.

7 shows a light distribution 32 as produced by a further embodiment of a headlamp according to the invention. This light distribution is generated by a designed for installation on the right side of the vehicle headlights. In detail, the shows 7 one from partial light distributions 34 and 36 composite total light distribution. Horizontal H indicates the position of the horizon when the headlamp is used as intended. The vertical V intersects the horizontal H at a point defined by the intersection of the main emission direction of the headlamp or the vehicle longitudinal axis with the horizontal. The more central partial light distribution 34 is from that in the matrix beam path 22 generated propagating first light component, by the driving of the liquid crystal matrix component 4 can be influenced. This more central partial light distribution is from the laterally partial light distribution 36 complemented by the one in the base beam path 24 propagating second light component by appropriate arrangement and configuration of the first optical element 5 is produced.

Thus, in the more central area, the high-resolution pixel light distribution is obtained 34 and in the side area a light distribution in the form of a block segment 36 , A disadvantage of this configuration is that in the driving states in which the lateral light distribution 36 must be turned off, the light source 1 must be switched off, so that then the pixel light distribution 34 in the more central part is not available. However, this can be partially due to the built-in on the other side of the vehicle headlights or by a switchable aperture 30 be compensated. In addition, the turn-on frequency of the page areas 36 significantly higher than the turn-on frequency of the more central area 34 so the cases where the central area 34 could still be on and the page area 36 must be turned off, occur less frequently.

The embodiments described so far use a liquid crystal matrix component adapted for reflection of the incident light. The invention can also be realized with liquid-crystal matrix components which are set up to transmit the incident light.

In this case, a polarizing beam splitter 3 , as shown in the figure, to arrange so that its light exit side 3.2 the optical element 6 , or the projection lens 7 is facing. The interface 3.0 of the beam splitter 3 For example, between its two prisms the object of the figure does not run from the bottom right to the top left, as shown there, but from bottom left to top right.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102014213636 A1 [0002, 0006, 0008]
• DE 102013113807 A1 [0003, 0005]
• DE 102013088811 A1 [0003]
• DE 102008036193 [0009]

Claims (14)

Motor vehicle headlights ( 10 ) with a light source ( 1 ) and a liquid crystal matrix component ( 4 ), which is arranged in the beam path of light emitted by the light source ( 1 ), characterized in that between the light source ( 1 ) and the liquid crystal matrix component ( 4 ) a polarizing beam splitter ( 3 ) is arranged so that the of the light source ( 1 ) incident light in a matrix beam path ( 22 ) and a base beam path ( 24 ), wherein the matrix beam path from the beam splitter ( 3 ) to the liquid crystal matrix component ( 4 ) and consists of light components having a first polarization direction, and wherein the base beam path ( 24 ) consists of light components which have a second polarization direction, and which without touching the liquid crystal matrix component ( 4 ) to a first optical element ( 5 ), which in the basic beam path ( 24 ) incident light bundles. Headlamp according to claim 1, characterized by a projection lens ( 7 ) disposed and arranged to be separated from the liquid crystal matrix component (FIG. 4 ) outgoing light of the light source ( 1 ) and in the apron of the headlamp ( 10 ). Headlights ( 10 ) according to claim 2, characterized in that the first optical element ( 5 ) in the basic beam path ( 24 ) propagating light into an intermediate image area ( 9 ) focused in the base beam path ( 24 ) between the first optical element ( 5 ) and the projection lens ( 7 ), wherein a distance of the intermediate image area ( 9 ) from the projection lens ( 7 ) of the inter-frame focal length of the projection lens ( 7 ) corresponds. Headlights ( 10 ) according to one of claims 2 or 3, characterized by a mirror aperture ( 8th ), which has a diaphragm edge ( 8.1 ) and in the basic beam path ( 24 ) between the first optical element ( 5 ) and the projection lens ( 7 ) is arranged so that the diaphragm edge ( 8.1 ) at a distance to the projection lens ( 7 ), which of the inter-frame focal length of the projection lens ( 7 ), and which mirror aperture ( 8th ) from the diaphragm edge ( 8.1 ) starting in one of the projection lens ( 7 ) to the diaphragm edge ( 8.1 ) pointing direction extends. Headlights ( 10 ) according to claim 4, characterized in that the mirror aperture ( 8th ) parallel to an optical axis of the projection lens ( 7 ). Headlights ( 10 ) according to one of the preceding claims, characterized by a second optical element ( 6 ), which in the matrix beam path ( 22 ) between the beam splitter ( 3 ) and the intermediate image area ( 9 ) is arranged so that it in the matrix beam path ( 22 ) propagating light into the intermediate image area ( 9 ) focused. Headlights ( 10 ) according to one of the preceding claims, characterized in that a fourth optical element ( 28 ) in the basic beam path ( 24 ) between the beam splitter ( 3 ) and the first optical element ( 5 ) is arranged so that it from the beam splitter ( 3 ) incident light in a focal region of the first optical element ( 5 ) and that light emanating from the focal area of the light source ( 1 ) the first optical element ( 5 ) illuminated. Headlights ( 10 ) according to one of the preceding claims, characterized by a first diaphragm ( 30 ) located between the beam splitter ( 3 ) and the first optical element ( 5 ) and in the basic beam path ( 24 ) protrudes. Headlights ( 10 ) according to claim 7, characterized by a first diaphragm ( 30 ) extending between the fourth optical element ( 28 ) and the first optical element ( 5 ) and in the basic beam path ( 24 ) protrudes. Headlights ( 10 ) according to claim 8 or 9, characterized in that the first diaphragm ( 30 ) between a first position in which they are not in the basic beam path ( 24 ) and a second position in which they are in the basic beam path ( 24 protrudes, is movable. Headlights ( 10 ) according to one of the preceding claims, characterized in that the polarizer ( 3 ) is a thin film polarizer. Headlights ( 10 ) according to claim 12, characterized in that the polarizer ( 3 ) has the basic form of a beam splitter cube, one of the light source ( 1 ) facing the first light entry surface ( 03.01 ), a first optical element ( 5 ) facing the second light exit surface ( 3.3 ) and one of the projection lenses ( 7 ) facing third light exit surface ( 3.4 ), characterized in that the light entry surface ( 03.01 ) is curved so that it is from the light source ( 1 ) incident light is parallelized, that the second light exit surface ( 3.3 ) is curved in such a way that it directs the exiting light into an area between the second light exit surface ( 3.3 ) and the first optical element ( 5 ) lying focal region of the first optical element ( 5 ) and that the third light exit surface ( 3.4 ) is curved in such a way that it emits exiting light into the intermediate image area ( 9 ) focused. Headlights ( 10 ) according to one of the preceding claims, characterized in that the cover ( 14 ) a first area , which is arranged so that it preferably from in the matrix beam path ( 22 ) is illuminated and there has a form in which the reflectance for the first polarization direction is minimal, and that the cover ( 14 ) a second area ( 14.2 ), which is arranged so that it preferably from in the base beam path ( 24 ) propagating light is illuminated and there has a form in which the reflectance for the second polarization direction is minimal. Headlights ( 10 ) according to one of the preceding claims, characterized in that in the matrix beam path ( 22 ) in the light path after the liquid crystal matrix component ( 4 ) a depolarizer ( 13 ) is arranged, which converts the incident polarized light into unpolarized light, and that in the base beam path ( 24 ) in the light path after the beam splitter ( 3 ) a depolarizer ( 13 ) which converts the incident polarized light into unpolarized light.

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