DE102019118590A1 - Light module of a motor vehicle headlight and motor vehicle headlight with such a light module - Google Patents

Abstract

The invention relates to a light module (105) of a motor vehicle headlight (101) for emitting light in a light exit direction (103) and for realizing at least two partial light distributions (300, 500; 400, 600, 700), each together with light generate an overall light distribution of the headlight (101) from at least one other light module (106) of the headlight (101). The light module (105) comprises a mirror screen (6) which is arranged between a light source arrangement (10) and a projection optics (2) of the light module (105) and is movable about an axis of rotation (5) and has a flat surface extension and an essentially horizontal orientation The axis of rotation (5) has a horizontal extension transverse to the main axis (7) of the light module (105), and wherein the mirror screen (6) can be pivoted between at least two pivoting positions about the axis of rotation (5). It is proposed that the axis of rotation (5) be arranged between a geometric center line (16) of the mirror screen (6) transversely to the main axis (7) of the light module (105) and the projection optics (2), the mirror screen (6) being rigid and is pivotable in its entirety about the axis of rotation (5).

Description

• - eine Lichtquellenanordnung zum Emittieren von Licht,
• - eine Projektionsoptik mit einem eine Hauptachse des Lichtmoduls umfassenden Fokalbereich, zum Abbilden des von der Lichtquellenanordnung emittierten Lichts in der Lichtaustrittsrichtung, und
• - eine zwischen der Lichtquellenanordnung und der Projektionsoptik angeordnete, um eine Drehachse bewegliche Spiegelblende mit einer ebenen Flächenerstreckung und einer im Wesentlichen horizontalen Ausrichtung, wobei die Drehachse eine horizontale Erstreckung quer zu der Hauptachse des Lichtmoduls aufweist, und wobei die Spiegelblende zum Umschalten zwischen den Teil-Lichtverteilungen zwischen mindestens zwei Schwenkstellungen um die Drehachse verschwenkbar ist.

The present invention relates to a light module of a motor vehicle headlight. The light module is used to emit light in a light exit direction of the headlight and to implement at least two partial light distributions, which together with light from at least one other light module of the headlight generate an overall light distribution of the headlight. The light module includes:

• - a light source arrangement for emitting light,
• a projection optics with a focal area comprising a main axis of the light module for imaging the light emitted by the light source arrangement in the light exit direction, and
• - A mirror screen arranged between the light source arrangement and the projection optics, movable about an axis of rotation and having a flat surface extension and a substantially horizontal orientation, the axis of rotation having a horizontal extension transversely to the main axis of the light module, and the mirror screen for switching between the partial Light distributions can be pivoted about the axis of rotation between at least two pivot positions.

The invention also relates to a motor vehicle headlight with a first light module for emitting light in a light exit direction of the headlamp and for realizing at least two partial light distributions, and with at least one second light module for emitting light in the light exit direction and for realizing at least one other partial light distribution. Light distribution. When the first light module and the at least one second light module are operated simultaneously, one of the first partial light distributions, together with the at least one other partial light distribution, generates an overall light distribution of the headlight.

In such headlights known from the prior art, for example, a first light module generates a first partial light distribution in the form of a basic light (low beam or high beam basic light) that contributes to the overall light distribution in the form of a particularly homogeneously illuminated and wide light beam , preferably created with a flat horizontal light-dark border. The second light module generates, for example, a second partial light distribution in the form of a spot light (low beam or high beam spot), which makes a contribution in the form of a concentrated light bundle to the overall light distribution, preferably with an asymmetrical horizontal light-dark boundary, and which is close to particularly high illuminance values the light-dark border generated. The partial light distributions are superimposed to form the overall light distribution of the headlamp (low beam or high beam).

Light modules for motor vehicle headlights are known from the prior art, which actually only produce a partial light distribution in the form of a low beam with a horizontal light-dark border. To switch the light module to another second partial light distribution in the form of a high beam, the complete light module is swiveled upwards using servomotors. However, this has the disadvantage that the raised light-dark boundary that is still present in the high beam case leads to a visible and possibly disruptive edge in the light distribution, which limits the high beam partial light distribution upwards. In addition, the position of a maximum of the light distribution, which is ideally positioned as close as possible to the light-dark border in the low beam case, is shifted far up in the high beam case and is therefore not optimally positioned.

• - eine Lichtquellenanordnung zum Emittieren von Licht, die eine Bündelungsoptik in Form eines Ellipsoidreflektors zum Bündeln des emittierten Lichts aufweist,
• - eine Projektionsoptik in Form einer Projektionslinse mit einem Fokalbereich in Form eines Brennpunkts auf einer Hauptachse des Lichtmoduls, wobei die Projektionsoptik zum Abbilden des von der Lichtquellenanordnung emittierten und von der Bündelungsoptik gebündelten Lichts in der Lichtaustrittsrichtung dient, und
• - eine zwischen der Lichtquellenanordnung und der Projektionsoptik angeordnete, um eine Drehachse bewegliche Spiegelblende mit einer ebenen Flächenerstreckung und einer im Wesentlichen horizontalen Ausrichtung, wobei die Drehachse eine horizontale Erstreckung quer zu der Hauptachse des Lichtmoduls aufweist, und wobei die Spiegelblende zwischen mindestens zwei Schwenkstellungen um die Drehachse verschwenkbar ist.

A light module of the type mentioned is, for example, from EP 1 193 440 A1 as well as the KR 10 2010 044 654 A known. That from the EP 1 193 440 A1 includes known light module

• - A light source arrangement for emitting light, which has a focusing optics in the form of an ellipsoid reflector for focusing the emitted light,
• - A projection optics in the form of a projection lens with a focal area in the form of a focal point on a main axis of the light module, wherein the projection optics is used to image the light emitted by the light source arrangement and bundled by the bundling optics in the light exit direction, and
• - A mirror screen, which is arranged between the light source arrangement and the projection optics and is movable about an axis of rotation, with a flat surface extension and a substantially horizontal orientation, the axis of rotation having a horizontal extension transversely to the main axis of the light module, and the mirror screen between at least two pivot positions around the Axis of rotation is pivotable.

The ellipsoidal reflector has a first focal point, at which the light source arrangement is arranged, and a second focal point, at which the front edge of the mirror diaphragm and a focal point of the projection lens are arranged. The mirror screen is provided with a reflective coating, for example a layer of aluminum or the like, which is applied in a known manner by means of a vacuum coating process. The horizontal axis of rotation around which the Mirror screen can be pivoted is arranged on a rear edge of the mirror screen directed towards the light source arrangement. The front edge of the mirror screen directed towards the projection optics can thus be pivoted in the vertical direction about the axis of rotation between different pivot positions.

In particular, the mirror shutter of the EP 1 193 440 A1 known light module between a first pivot position, in which a first partial light distribution is generated in the form of a low beam, and a second pivot position, in which a second partial light distribution is generated in the form of a high beam. In the first pivot position, most of the light emitted by the light source arrangement and bundled by the bundling optics strikes the essentially horizontally aligned mirror shutter and is reflected by this onto an upper region of the projection lens. Due to the imaging properties of the projection lens, it images the light from the upper area as a shielded light bundle below a horizontal light-dark border. In the second pivot position, the mirror diaphragm is pivoted out of the beam path of the light emitted by the light source arrangement and bundled by the bundling optics, so that the light reaches both the upper area and a lower area of the projection lens. Due to the imaging properties of the projection lens, it images the light from the upper and lower areas into a light bundle that illuminates areas of the partial light distribution both below and above the horizontal light-dark boundary.

Moving the mirror diaphragm in the high beam case only causes an increase in the light distribution and no reversal or reflection of the light distribution in the low beam case. This means that if the same luminous flux of the light source arrangement is available in both pivoting positions, the available light in the second pivoting position must be divided between the areas of the partial light distribution both below and above the horizontal light-dark boundary. The second partial light distribution therefore has a lower luminance than the first partial light distribution, in which only the area below the light-dark boundary is illuminated. Although this is desired in the cited prior art, this can be disadvantageous in certain situations: For example, a luminous flux of between 500 and 1,000 Im and a maximum illuminance of 50 Ix is sufficient for a low beam distribution. For high beam distribution, on the other hand, a luminous flux between 500 and 2,000 Im and an illuminance between 50 and 300 Ix are desired. These requirements cannot be met by the known light module. Furthermore, the generated from the EP 1 193 440 A1 known light module, the resulting overall light distribution of the motor vehicle headlight alone, ie without interaction with other light modules of the headlight.

The present invention is based on the object of designing and developing the light module known from the prior art in such a way that the requirements for the luminous flux and the illuminance as well as the design of the resulting partial light distributions (no edges at the top of the high beam distribution and as close as possible to the Center of the light distribution positioned maximum in the high beam case) can be met as well as possible.

To solve this problem, a light module with the features of claim 1 is proposed. In particular, based on the light module of the type mentioned at the beginning, it is proposed that the axis of rotation of the mirror screen be arranged between a geometric center line of the mirror screen transversely to the main axis of the light module and the projection optics, the mirror screen being rigid and pivotable in its entirety about the axis of rotation.

According to the invention, the axis of rotation of the mirror screen is no longer arranged on the rear edge of the mirror screen facing the light source arrangement, but in a front area of the mirror screen or even in front of the mirror screen between the front edge and the projection optics. This means that in a first pivot position (e.g. for low beam) the mirror shutter directs the (preferably all) light emitted by the light source arrangement onto a first area of the projection optics (e.g. an upper area of a projection lens), whereas the mirror shutter in a second pivot position ( eg for high beam) directs the (preferably all) light emitted by the light source arrangement onto a second area of the projection optics (eg a lower area of the projection lens). The first and second areas of the projection optics are preferably different areas. Due to the imaging properties of the projection lens, it images the light from the upper or lower area in a partial light bundle that illuminates an area of the light distribution below the horizontal light-dark boundary or above the light-dark boundary. The entire luminous flux and a sufficiently high illuminance is always available for the illuminated areas in order to generate a sufficiently bright partial light distribution, especially in the high beam case, which together with the light from at least one other light module of the headlight and possibly in cooperation with a second headlight that is on the same Motor vehicle is arranged to generate the high beam in conformity with the legal requirements.

The light module according to the invention can generate a partial light distribution, for example in the form of a basic light (low beam or high beam basic light), which makes a contribution in the form of a particularly homogeneously illuminated and wide light beam to the overall light distribution (low beam or high beam). In the case of low-beam basic light, the partial light distribution preferably has a flat, horizontal light-dark boundary which limits the light distribution towards the top. Alternatively, the light module according to the invention can generate a partial light distribution, e.g. in the form of a spot light (low beam or high beam spot), which makes a contribution in the form of a concentrated light beam to the overall light distribution with particularly high illuminance values in the center of the light distribution. In the case of a low beam spot, the partial light distribution preferably has an asymmetrical horizontal light-dark boundary with particularly high illuminance values close to the light-dark boundary.

The front edge of the horizontal mirror screen is mapped by the projection optics as a horizontal light-dark border of the resulting partial light distribution. The image of the front edge is sharp when the front edge is arranged in the focal area (e.g. a focal point or in a focal plane) of the projection optics. An arrangement of the front edge of the mirror diaphragm outside the focal area leads to a blurring of the depicted light-dark boundary. The front edge of the mirror diaphragm is preferably arranged in at least one of the pivoting positions in the focal region of the projection optics or the front edge runs through a focal point or a focal plane of the optics.

In a different pivoting position, the front edge can be moved out of the focal area of the projection optics - with a corresponding arrangement of the axis of rotation - so that the light-dark boundary of the resulting partial light distribution is blurred. This can be useful, for example, when the light module according to the invention generates a high beam distribution that only illuminates an area above a horizontal light-dark boundary that, together with the light from another light module of the headlight, generates the high beam that complies with the law. The other light module should therefore illuminate at least the area below the light-dark boundary so that the high beam is created in total. Due to the fuzzy lower light-dark boundary of the partial high-beam light distribution generated by the light module according to the invention, the transition between the high-beam light distribution and the (dimmed) light distribution generated by the other light module can be blurred in the area of the light-dark boundary. Disturbing horizontal stripes in the overall high beam distribution can thus be avoided.

The geometrical center line of the mirror diaphragm is preferably selected such that a partial volume of the mirror diaphragm on one side of the center line corresponds to a partial volume of the mirror diaphragm on the other side of the center line. Since the mirror diaphragm has only a very small and, in particular, a constant thickness, it can be said that the center line also divides the surface of the mirror diaphragm into two equally large partial areas.

According to an advantageous further development of the invention, it is proposed that the front edge of the mirror screen is curved in a plane defined by the surface extension of the mirror screen, the front edge protruding further towards the projection optics on the sides of the mirror screen and in a central area of the mirror screen opposite the sides is set back. The curved course of the front edge of the mirror diaphragm preferably corresponds to the course of a focal plane or focal plane of the projection optics.

According to a preferred embodiment, the projection optics comprise a projection lens. This can, for example, be designed as a plano-convex lens, with a light entry surface being largely flat and a light exit surface being convexly curved outwards. The projection lens is preferably arranged on the main axis of the light module, so that a focal point (or focal point cloud) or a focal plane of the projection lens lies on the main axis. The main axis is, for example, an optical axis of the light module. The projection lens can have almost any circumferential shape, viewed against the light exit direction, in particular a circular, elliptical, rectangular, diamond-shaped shape. The axis of rotation of the diaphragm is preferably arranged between the center line of the mirror diaphragm and the light entry surface of the projection lens.

The mirror shutter of the light module is advantageously pivotable between at least a first pivoting position in which a first partial light distribution illuminates a screened area below a horizontal light-dark boundary, and at least a second pivoting position in which a second partial light distribution illuminates a far area above a horizontal light-dark boundary. The light-dark boundary of the first and second partial light distributions are preferably the same light-dark boundary. Of course, it would also be conceivable that the mirror screen can be moved between more than two pivot positions and the light module can thereby be moved more than two can produce different partial light distributions. Furthermore, it would be conceivable that the light module is designed to generate other partial light distributions than the above-mentioned shielded and high-range light distributions.

The light source arrangement, the mirror diaphragm and the projection optics are preferably arranged and aligned relative to one another in such a way that the light emitted by the light source arrangement and / or reflected on the mirror diaphragm in the at least one first pivot position of the mirror diaphragm exclusively onto a first area of the projection optics and in the at least a second pivot position of the mirror diaphragm only hits a second area of the projection optics. The first area and the second area of the projection optics are preferably different areas of the projection optics that do not overlap. Alternatively, however, it would also be conceivable for the first area and the second area of the projection optics to be different areas of the projection optics, which marginally overlap along a horizontal light-dark boundary of the partial light distributions. As a result, the transition between a partial light distribution of the light module according to the invention and another light distribution of another light module of the headlight can advantageously be blurred.

According to an advantageous development of the invention, it is proposed that the light source arrangement comprises at least one semiconductor light source, in particular at least one light emitting diode (LED) or at least one laser diode. It is further proposed that the light source arrangement have at least one focusing optics which bundle the emitted light before it strikes the mirror diaphragm and / or the projection optics. The focusing optics can, for example, comprise a reflector, in particular an ellipsoidal reflector, or a lens. It is particularly preferred if the bundling optics comprises an attachment lens made of a transparent material, in particular glass or plastic, which is designed to refract the emitted light when it is coupled into and / or out of the attachment lens and / or by means of total reflection from into the attachment lens to bundle coupled light at the outer interfaces of the ancillary optics.

The light source arrangement can comprise one or more light sources, optionally with appropriate focusing optics. Several light sources can be arranged in one plane, for example on a common printed circuit board, with main emission directions that run parallel to one another. Alternatively, however, it would also be conceivable that several light sources are arranged and aligned in different planes, so that the main emission directions run obliquely to one another and preferably intersect at one point. The point of intersection of the main emission directions of the light sources is preferably on the main axis of the light module, particularly preferably on the front edge of the mirror screen.

According to a preferred embodiment, it is proposed that the light source arrangement is arranged and / or aligned relative to the mirror screen in such a way that a main emission direction of at least a part of the light source arrangement, in particular one of the light sources, possibly with appropriate focusing optics, in one of the pivoting positions of the mirror screen is parallel to a runs through the plane defined by the surface extension of the mirror diaphragm. A main direction of emission from one of the light sources, possibly with appropriate focusing optics, preferably runs parallel to the surface extension of the mirror diaphragm in its second pivot position, in which the second partial light distribution illuminates a distant area. Another light source of the light source arrangement, possibly with appropriate focusing optics, could then be arranged and / or aligned in such a way that its main emission direction runs parallel to the main axis of the light module. Alternatively, it would also be conceivable that another light source of the light source arrangement, possibly with appropriate focusing optics, is arranged and / or aligned in such a way that its main emission direction runs parallel to the surface extension of the mirror screen in a different pivot position, in particular in its first pivot position in which the first partial light distribution illuminates a shaded area.

According to another advantageous development of the invention, it is proposed that the mirror screen has a screen part with an essentially vertical surface extension along at least one of its sides or a center line running between them, which is pivotable together with the mirror screen about the axis of rotation and which preferably extends up to the front edge of the mirror cover extends. The vertical diaphragm part, in particular its front edge, can be imaged by the projection optics and serve to generate a vertical light-dark border.

It is particularly preferred if the vertical diaphragm part is arranged exclusively below a plane defined by the surface extension of the mirror diaphragm, which plane faces the light source arrangement in the second pivot position of the mirror diaphragm. As a result, the screen part only comes into effect in the second pivot position of the mirror screen. The vertical screen part is preferably arranged on the underside of the mirror screen, so that in the second pivot position it is used to generate a high beam distribution Effect comes. As a result, in the low beam case, a continuous, homogeneous light distribution without vertical edges can be generated and in the high beam case a high beam distribution with a vertical light-dark border. The high beam distribution with a vertical light-dark boundary can serve to implement a partial high beam in cooperation with a corresponding light distribution of another light module of the headlight or another headlight of the motor vehicle. In the case of a partial high beam, the entire area in front of the motor vehicle is illuminated with a high beam, with road users detected in advance being omitted (shaded) from the high beam distribution. This can be achieved in that the light modules or the headlights can be pivoted in the horizontal direction and that a first partial high beam with a vertical light-dark border on the right in the partial light distribution approaches the detected road user from the left and a second partial high beam with a vertical light-dark border on the left in the part -Light distribution approaches the detected road user from the right. By horizontally pivoting the light modules or the headlights, the position and the width of the shaded area in which the detected road user is located can be changed, so that the shaded area can follow a movement of the road user.

The present invention also comprises a motor vehicle headlight with a plurality of light modules, at least one of the light modules being designed as a light module according to the invention.

• 1 einen erfindungsgemäßen Kraftfahrzeugscheinwerfer gemäß einer bevorzugten Ausführungsform;
• 2 ein erfindungsgemäßes Lichtmodul des Scheinwerfers aus 1 gemäß einer bevorzugten Ausführungsform in schematischer Seitenansicht in einem Fall zur Erzeugung einer ersten Teil-Lichtverteilung;
• 3 einen in einem Abstand vor dem Scheinwerfer aus 1 angeordneten Messschirm mit einem Beispiel für die durch das Lichtmodul aus 2 erzeugte erste Teil-Lichtverteilung;
• 4 ein erfindungsgemäßes Lichtmodul des Scheinwerfers aus 1 gemäß einer bevorzugten Ausführungsform in schematischer Seitenansicht in einem Fall zur Erzeugung einer zweiten Teil-Lichtverteilung;
• 5 einen in einem Abstand vor dem Scheinwerfer aus 1 angeordneten Messschirm mit einem Beispiel für die durch das Lichtmodul aus 4 erzeugte zweite Teil-Lichtverteilung;
• 6 ein erfindungsgemäßes Lichtmodul des Scheinwerfers aus 1 gemäß einer bevorzugten Ausführungsform in perspektivischer Ansicht in einem Fall zur Erzeugung einer ersten Teil-Lichtverteilung mit einer ersten Position der Drehachse der Spiegelblende;
• 7 das Lichtmodul aus 6 in einer Seitenansicht;
• 8 einen in einem Abstand vor dem Scheinwerfer aus 1 angeordneten Messschirm mit einem anderen Beispiel für die durch das Lichtmodul aus 6 und 7 erzeugte erste Teil-Lichtverteilung;
• 9 ein erfindungsgemäßes Lichtmodul des Scheinwerfers aus 1 gemäß einer bevorzugten Ausführungsform in perspektivischer Ansicht in einem Fall zur Erzeugung einer zweiten Teil-Lichtverteilung mit einer ersten Position der Drehachse der Spiegelblende;
• 10 das Lichtmodul aus 9 in einer Seitenansicht;
• 11 einen in einem Abstand vor dem Scheinwerfer aus 1 angeordneten Messschirm mit einem anderen Beispiel für die durch das Lichtmodul aus 9 und 10 erzeugte zweite Teil-Lichtverteilung;
• 12 ein erfindungsgemäßes Lichtmodul des Scheinwerfers aus 1 gemäß einer bevorzugten Ausführungsform in perspektivischer Ansicht in einem Fall zur Erzeugung einer ersten Teil-Lichtverteilung mit einer zweiten Position der Drehachse der Spiegelblende;
• 13 das Lichtmodul aus 12 in einer Seitenansicht;
• 14 einen in einem Abstand vor dem Scheinwerfer aus 1 angeordneten Messschirm mit einem anderen Beispiel für die durch das Lichtmodul aus 12 und 13 erzeugte erste Teil-Lichtverteilung;
• 15 ein erfindungsgemäßes Lichtmodul des Scheinwerfers aus 1 gemäß einer bevorzugten Ausführungsform in perspektivischer Ansicht in einem Fall zur Erzeugung einer zweiten Teil-Lichtverteilung mit einer zweiten Position der Drehachse der Spiegelblende;
• 16 das Lichtmodul aus 15 in einer Seitenansicht;
• 17 einen in einem Abstand vor dem Scheinwerfer aus 1 angeordneten Messschirm mit einem anderen Beispiel für die durch das Lichtmodul aus 15 und 16 erzeugte zweite Teil-Lichtverteilung;
• 18 ein erfindungsgemäßes Lichtmodul des Scheinwerfers aus 1 gemäß einer bevorzugten Ausführungsform in schematischer Seitenansicht in einem Fall zur Erzeugung einer zweiten Teil-Lichtverteilung mit einer dritten Position der Drehachse der Spiegelblende;
• 19 ein erfindungsgemäßes Lichtmodul des Scheinwerfers aus 1 gemäß einer bevorzugten Ausführungsform in schematischer Seitenansicht in einem Fall zur Erzeugung einer zweiten Teil-Lichtverteilung mit einem zusätzlichen vertikalen Blendenteil;
• 20 das Lichtmodul aus 19 in einer perspektivischen Ansicht;
• 21 einen in einem Abstand vor dem Scheinwerfer aus 1 angeordneten Messschirm mit einem anderen Beispiel für die durch das Lichtmodul aus 19 und 20 erzeugte zweite Teil-Lichtverteilung;
• 22 eine Draufsicht auf ein erfindungsgemäßes Lichtmodul in einer schematischen Ansicht; und
• 23 einen in einem Abstand vor einem aus dem Stand der Technik bekannten Scheinwerfer angeordneten Messschirm mit einer durch ein aus dem Stand der Technik bekanntes Lichtmodul erzeugten zweiten Teil-Lichtverteilung.

Further features and advantages of the present invention are explained in more detail below with reference to the figures. The individual features of the various embodiments shown can be combined with one another in any way, even if this is not expressly mentioned. Show it:

• 1 a motor vehicle headlight according to the invention according to a preferred embodiment;
• 2 an inventive light module of the headlight 1 according to a preferred embodiment in a schematic side view in a case for generating a first partial light distribution;
• 3 one at a distance in front of the headlight 1 arranged measuring screen with an example of the through the light module 2 generated first partial light distribution;
• 4th an inventive light module of the headlight 1 according to a preferred embodiment in a schematic side view in a case for generating a second partial light distribution;
• 5 one at a distance in front of the headlight 1 arranged measuring screen with an example of the through the light module 4th second partial light distribution generated;
• 6th an inventive light module of the headlight 1 according to a preferred embodiment in a perspective view in a case for generating a first partial light distribution with a first position of the axis of rotation of the mirror shutter;
• 7th the light module off 6th in a side view;
• 8th one at a distance in front of the headlight 1 arranged measuring screen with another example of the through the light module 6th and 7th generated first partial light distribution;
• 9 an inventive light module of the headlight 1 according to a preferred embodiment in a perspective view in a case for generating a second partial light distribution with a first position of the axis of rotation of the mirror shutter;
• 10 the light module off 9 in a side view;
• 11 one at a distance in front of the headlight 1 arranged measuring screen with another example of the through the light module 9 and 10 second partial light distribution generated;
• 12 an inventive light module of the headlight 1 according to a preferred embodiment in a perspective view in a case for generating a first partial light distribution with a second position of the axis of rotation of the mirror diaphragm;
• 13 the light module off 12 in a side view;
• 14th one at a distance in front of the headlight 1 arranged measuring screen with another example of the through the light module 12 and 13 generated first partial light distribution;
• 15th an inventive light module of the headlight 1 according to a preferred embodiment in a perspective view in a case for generating a second partial light distribution with a second position of the axis of rotation of the mirror shutter;
• 16 the light module off 15th in a side view;
• 17th one at a distance in front of the headlight 1 arranged measuring screen with another example of the through the light module 15th and 16 second partial light distribution generated;
• 18th an inventive light module of the headlight 1 according to a preferred embodiment in a schematic side view in a case for generating a second partial light distribution with a third position of the axis of rotation of the mirror screen;
• 19th an inventive light module of the headlight 1 according to a preferred embodiment in a schematic side view in a case for generating a second partial light distribution with an additional vertical diaphragm part;
• 20th the light module off 19th in a perspective view;
• 21st one at a distance in front of the headlight 1 arranged measuring screen with another example of the through the light module 19th and 20th second partial light distribution generated;
• 22nd a plan view of a light module according to the invention in a schematic view; and
• 23 a measuring screen arranged at a distance in front of a headlight known from the prior art, with a second partial light distribution generated by a light module known from the prior art.

In 1 is an inventive headlight for motor vehicles in its entirety with the reference number 101 designated. The headlight 101 includes a housing 102 , which is preferably made of plastic. In a light exit direction 103 has the headlight housing 102 a light exit opening through a transparent cover plate 104 is locked. The cover panel 104 is made of colorless plastic or glass. The disc 104 can be designed as a so-called clear pane without optically effective profiles. Alternatively, the disc 104 be provided at least in some areas with optically effective profiles (for example cylinder lenses or prisms) which cause the light passing through to be scattered, preferably in the horizontal direction. The headlight 101 is intended for installation on an attachment side of a motor vehicle. Two of the headlights shown 101 which are arranged on different attachment sides of the motor vehicle form a motor vehicle lighting device according to the invention. This includes the headlights installed on different attachment sides 101 preferably mirror-symmetrical to one another with regard to their general geometrical external appearance.

Inside the headlight housing 102 are two light modules in the example shown 105 , 106 arranged. The light modules 105 , 106 are fixed or relative to the housing 102 movably arranged. By a relative movement of at least one of the light modules 105 , 106 to the housing 102 A dynamic cornering light function can be implemented in the horizontal direction. When at least one of the light modules moves 105 , 106 Headlight range control can be implemented around a horizontal axis, that is, in the vertical direction. Of course, in the headlight housing 102 also more than the two light modules shown 105 , 106 be provided. The light modules 105 , 106 each generate at least one partial light distribution, which results in an overall light distribution of the headlight 101 overlay that meets legal and regulatory requirements. For example, it is conceivable that one of the light modules 105 , 106 Generates a basic light (low beam or high beam basic light) that creates a wide, homogeneous illumination far into the side areas. In the case of low-beam basic light, the light distribution preferably has a flat horizontal light-dark boundary. In this case the other one of the light modules could be 105 , 106 create a spot light (dipped or high beam spot) that creates concentrated illumination with a focus in the center of the light distribution. In the case of a low beam spot, the light distribution preferably has an asymmetrical horizontal light-dark boundary and ensures the legally or regulatory high illuminance values of the overall light distribution close to the light-dark boundary. The basic light and the spot light of the light modules 105 , 106 superimpose to form the overall light distribution (low beam or high beam) of the headlight 101 . Of course, the light modules 105 , 106 also generate other partial light distributions that add up to the overall light distribution of the headlight 101 overlay.

One or more of the light modules 105 , 106 of the headlight 101 can be designed as light modules according to the invention. In the present example, the light module is 105 designed as a light module according to the invention. The light module 105 can be designed to generate different partial light distributions, for example a low beam partial light (basic light and / or spot light), a high beam partial light (basic light and / or spot light) and / or a partial high beam. It is conceivable that the partial light distributions of the light modules 105 , 106 of headlights arranged on different attachment sides of the motor vehicle 101 to the resulting overall light distribution of the headlight 101 complete. With the proposed light module 105 It is particularly possible, by integrating several light functions, to reduce the number of in a headlight housing 102 arranged light modules. This increases the installation space of the headlight in particular 101 reduced.

On the outside of the headlight housing 102 is a control device 107 in a control unit housing 108 arranged. Of course, the control unit can 107 also at any other point on the headlight 101 be arranged. In particular, for each of the light modules 105 , 106 a separate control device can be provided, the control devices being an integral part of the light modules 105 , 106 could be. Of course, the control unit can 107 also away from the headlight 101 , for example. Be arranged in the engine compartment of the motor vehicle. The control unit 107 serves to control and / or regulate the light modules 105 , 106 or of subcomponents of the light modules 105 , 106 , such as light and / or radiation sources and / or a movable screen of the light modules 105 , 106 . The control of the light modules 105 , 106 or the subcomponents by the control unit 107 takes place via connecting lines 110 , in the 1 are shown only schematically by a dashed line. Over the lines 110 can also supply the light modules 105 , 106 done with electrical energy. The lines 110 are from inside the headlight 101 through an opening in the headlight housing 102 in the control unit housing 108 and there to the circuit of the control unit 107 connected. If control units are an integral part of the light modules 105 , 106 are provided, the lines 110 and can be the opening in the headlight housing 102 omitted. The control unit 107 comprises a plug element 109 for connecting a connection cable to a higher-level control unit (eg in the form of a so-called body controller unit) and / or an energy source (eg in the form of the vehicle battery).

Light modules for motor vehicle headlights are known from the prior art, which actually only generate a partial light distribution for a low beam (for example a low beam basic distribution) with a horizontal light-dark border. To switch the light module to another partial light distribution for a high beam (e.g. a high beam basic distribution), the complete light module is swiveled up by means of servomotors. Appropriate light distribution 200 is in 23 shown. However, this has the disadvantage that in the high beam case, the light-dark boundary that is still present 202 is raised and becomes a visible and possibly annoying edge in the light distribution 200 which leads to the light distribution 200 limited upwards. The position of a maximum is also in the high beam case 204 the light distribution 200 , ideally as close as possible to the light-dark boundary in the low beam 202 is positioned, moved far up and thus not optimally positioned.

In the following, with reference to the 2 to 21st the design and functioning of the light module according to the invention 105 explained in more detail. The light module 105 includes projection optics 2 , which is designed here as a projection lens, for example. It projects an image of one inside the module 105 in the area of a focal area 3 (eg a focal plane) of the projection optics 2 generated inner light distribution as an outer partial light distribution in an area in front of the headlights 101 . Furthermore, the light module 105 a bezel arrangement 4th on which a substantially horizontally oriented, about an axis of rotation 5 movable rigid mirror shutter 6th comprises with a substantially flat surface extension. The area of the mirror cover 6th is also referred to as flat in the context of the invention if it is parallel to a main axis 7th of the light module 105 running kink 8th in order to achieve a raised section of an asymmetrical light-dark boundary of the light distribution on the own traffic side (cf. 6th , 9 , 12 , 15th , 20th ). The main axis 7th is preferably an optical axis of the light module 105 . Furthermore, the alignment of the mirror aperture 6th Within the meaning of the invention, it is also referred to as horizontal when it comes from the strictly horizontal orientation (on or parallel to the main axis 7th ) around the axis of rotation 5 is pivoted up or down. The concept of the horizontal alignment of the mirror bezel 6th is to be understood as a demarcation to the screens of conventional light modules, which have a strictly vertical alignment. These vertical diaphragms can, under certain circumstances, also be pivoted out of the beam path about a horizontal axis of rotation. The mirror cover 6th is designed to be reflective at least on its upper and lower sides, for example provided with a reflective coating or polished so that it reflects incident light rays.

The light module also includes 105 a light source assembly 10 that have at least one light source 12 has, which is preferably designed as a semiconductor light source, in particular as a light emitting diode (LED). Of course, the light sources 12 also be designed otherwise. The at least one light source 12 is such in the light module 105 arranged and aligned that their main emission direction 20th parallel to the main axis 7th of the light module 105 runs. In the example of the 2 is an additional light source 12 ' provided, the main direction of emission 20 ' oblique to the main axis 7th runs. Of course, the light source arrangement 10 also just a light source 12 or more than two light sources 12 , 12 ' exhibit. In particular, the light source arrangement 10 a multitude of matrix-like adjacent and / or light sources arranged one above the other 12 exhibit. The light sources 12 are preferably individually controllable so that they can be switched on and off and / or dimmed individually. The control of the light sources 12 preferably takes place automatically (e.g. by the control unit 107 controlled) depending on the pivot position of the mirror shutter 6th or by the light module 105 generated partial light distribution. Especially with multiple light sources 12 , 12 ' The case may also occur that none of the light sources 12 , 12 ' with the main direction of radiation 20th , 20 ' parallel to the main axis 7th is.

Preferably the light sources 12 one bundling optic each 14th assigned to that of the light sources 12 emitted light on the mirror shutter 6th bundles. The bundling optics preferably bundle 14th the light on one to the projection optics 2 pointing front edge 18th the mirror cover 6th . In the example shown are the bundling optics 14th designed as ancillary optics. A lens attachment 14th consists of a transparent material, in particular glass or plastic, and is formed from the associated light source 12 emitted light by means of refraction when coupling into and / or out of the ancillary optics 14th and / or by means of total reflection into the ancillary optics 14th coupled light at the outer interfaces of the ancillary optics 14th to bundle. It would also be conceivable that several light sources 12 of the light module 105 a common bundling optics 14th assigned. The at least one bundling optic 14th could also include a reflector or lens.

In the light module according to the invention 105 is the mirror cover 6th around the axis of rotation 5 pivotable. The axis of rotation 5 has a horizontal extension transverse to the main axis 7th of the light module 105 . The mirror cover 6th can between at least two pivot positions about the axis of rotation 5 are pivoted to generate the at least two partial light distributions. The axis of rotation 5 is between a geometric center line 16 the mirror cover 6th and the projection optics 2 arranged. Here is the mirror cover 6th rigid and in its entirety around the axis of rotation 5 pivotable. In the in 2 shown example runs the axis of rotation 5 in the area of the front edge 18th the mirror cover 6th . Here is the front edge 18th the mirror cover 6th preferably in the focal area 3 (a focal plane or a focal point or a focal point cloud) of the projection optics 2 . The front edge 18th the mirror cover 6th is used as shown by the projection optics 2 to create a horizontal light-dark border of the partial light distributions. When the front edge 18th the mirror cover 6th in the focal area 3 the projection optics 2 this forms the edge 18th as the light-dark boundary of the partial light distribution. When the front edge 18th outside of the focal area 3 the projection optics 2 it is out of focus.

As in 22nd shown may be the front edge 18th the mirror cover 6th in one by the surface extension of the mirror screen 6th defined plane, with the front edge 18th on the sides 6a the mirror cover 6th further towards the projection optics 2 protrudes and in a central area 6b the mirror cover 6th opposite the sides 6a is set back. The axis of rotation 5 can be at a position between the protruding sides 6a and the recessed center area 6b the mirror cover 6th be arranged. The multitude of possible positions of the axis of rotation 5 are in the sense of the invention as “in the area of the front edge 18th the mirror cover 6 " considered. The axis of rotation runs particularly preferably 5 through the recessed center area 6b the mirror cover 6th . The course of the curved front edge 18th the mirror cover 6th can follow the course of the focal area 3 , especially the focal plane, the projection optics 2 correspond.

In the examples of the 18th and 19th is the axis of rotation 5 between that to the projection optics 2 pointing front edge 18th the mirror cover 6th and the projection optics 2 but preferably closer to the front edge 18th the mirror cover 6th , arranged. Ideally, the front edge is 18th in a first pivot position of the mirror screen 6th (dashed line in the 18th and 19th ) in the focal area 3 the projection optics 2 arranged. By swiveling the mirror cover 6th into a second swivel position (mirror screen 6 ' ; solid line in the 18th and 19th ) around one to the front edge 18th spaced axis of rotation 5 , becomes the leading edge 18 ' from the focal area 3 the projection optics 2 shifted out and thus shown only blurred by this.

With a strictly horizontal mirror cover 6th runs the surface extension of the mirror screen 6th preferably in a horizontal plane, which is the main axis 7th of the light module 105 includes. The axis of rotation 5 preferably also runs in this horizontal plane. But it would also be conceivable that the axis of rotation 5 above or below at a distance from the horizontal plane. This also allows the front edge 18th the mirror cover 6th in one of the pivoting positions from the focal range 3 the projection optics 2 be moved out.

The present invention proposes instead of moving the entire light module 105 , 106 by means of servomotors (see the resulting light distribution in 23 ) a hinged mirror cover 6th to be used to switch between at least two partial light distributions (e.g. for low beam and high beam). Furthermore, instead of one Pivoting the mirror cover 6th around one at the rear edge of the mirror bezel 6th running axis of rotation (cf. EP 1 193 440 A1 ), a pivoting of the mirror cover 6th around one near the front edge 18th the mirror cover 6th running axis of rotation 5 suggested. This has the advantage that the efficiency of the light module 105 can be improved because, for example, in a high beam case, a region of the partial light distribution above the light-dark boundary is illuminated significantly brighter, since in the high beam case no light from the light source arrangement 10 to illuminate an area below the light-dark boundary is lost.

In 2 is an example of the light module 105 shown in which the mirror shutter 6th is in a first pivot position. A corresponding through the light module 105 out 2 e.g. achieved partial light distribution 300 is in 3 shown. The mirror screen is in the pivoted position shown 6th starting from a surface extension in the horizontal or the main axis 7th around the axis of rotation 5 folded down. The first pivot position corresponds, for example, to a position of the diaphragm 6th for generating a shielded partial light distribution, for example a low beam (in particular a low beam basic light or a low beam spot). The partial light distribution shown 300 is a low beam basic light. That from the light sources 12 , 12 ' emitted light is through the ancillary optics 14th , 14 ' towards the mirror bezel 5 bundled. Light only reaches one area 2a the projection optics 2 , which lies above a horizontal plane, which is the main axis 7th includes. Light shining on an area 2 B the projection optics 2 directed below the horizontal plane is through the mirror shutter 6th reflected, especially in the area 2a above the horizontal plane.

Due to the imaging properties of the projection optics 2 , that forms on the upper area 2a the projection optics 2 the dimmed light distribution 300 by a horizontal chiaroscuro line 302 is limited upwards. All the light from the upper area 2a the projection optics 2 lights up in the light distribution 300 an area below the light-dark boundary 302 out. Only that from the upper light source 12 ' emitted light, its main direction of emission 20 ' oblique to the main axis 7th of the light module 105 is aligned, can at least partially on the front edge 18th the mirror cover 6th passed on to the lower area 2 B the projection optics 2 meet and an area 304 the light distribution 300 above the light-dark border 302 illuminate. This can be done, for example, to achieve certain overhead illuminance values in the light distribution 300 be useful. On the additional light source 12 ' can also be dispensed with. Alternatively, the light source 12 ' can also be disabled or dimmed when the mirror shutter is on 6th is in its first pivot position.

In 4th is an example of the light module 105 shown in which the mirror shutter 6 ' (solid line) is in a second pivot position. The corresponding through the light module 105 out 4th Partial light distribution achieved 400 is in 5 shown. The mirror screen is in the pivoted position shown 6 ' starting from a surface extension in the horizontal or the main axis 7th around the axis of rotation 5 folded up. The second pivot position corresponds, for example, to a position of the diaphragm 6 ' for generating a second partial light distribution for illuminating a long range, for example a high beam (in particular a high beam basic light or a high beam spot). The partial light distribution shown 400 is a high beam basic light. That from the light sources 12 , 12 ' emitted light is through the ancillary optics 14th , 14 ' towards the mirror bezel 5 bundled. The light is preferably in the area of the front edge 18th the mirror cover 6 ' bundled and at least partially reflected by it. Light only reaches one area 2 B the projection optics 2 , which lies below the horizontal plane which is the main axis 7th includes. Light shining on an area 2a the projection optics 2 is directed above the horizontal plane, is through the mirror shutter 6 ' reflected, especially in the area 2 B below the horizontal plane.

Due to the imaging properties of the projection optics 2 , that forms on the lower area 2 B the projection optics 2 the light distribution 400 for illuminating a long-range area, which goes downwards through a horizontal light-dark border 402 is limited. The light distribution 400 practically represents a reflection of the dimmed light distribution 300 around the x-axis H (degree horizontal). The light-dark boundaries 302 , 402 are possibly not identical, because the front edge 18th the mirror cover 6 ' has a certain thickness and / or because the front edge 18th may not be exactly in the focal area 3 the projection optics 2 is arranged and / or the focal area 3 cannot be narrowed down exactly to a point or a plane, but rather forms a focal point cloud with a large number of focal points.

All the light from the lower area 2 B the projection optics 2 lights up in the light distribution 400 an area above the light-dark boundary 402 out. The upper light source 12 ' is arranged and aligned in such a way that its main emission direction 20 ' parallel to the surface extension of the mirror diaphragm 6 ' runs in the second pivot position. At most a small part of that from the upper light source 12 ' The light emitted is from the mirror shutter 6 ' reflects and arrives at the top Area 2a the projection optics 2 (in 4th not shown). This light from the upper area 2a would an area 404 the light distribution 400 below the light-dark border 402 illuminate. The additional light source 12 ' can be specifically activated or set brighter (e.g. automatically by the control unit 107 ) when the mirror bezel 6 ' is in its second pivot position. Because of the additional light source 12 ' In the high beam case, a larger luminous flux can be made available so that the high beam has the required brightness. One recognizes in 5 particularly good that an illuminance maximum 406 particularly close to the center HV of the light distribution 400 is arranged (about + 1.5 ° vertically). This is an advantage over the in 23 light distribution shown 200 of a conventional light module in the high beam case, its maximum illuminance 204 is about + 7.0 ° vertical.

Through the foldable mirror cover 6th is only one above or below the horizontal plane, which is the main axis 7th of the light module 105 includes, lying sub-area 2a ; 2 B the projection optics 2 illuminated. There may be a slight overlap of the illuminated areas 2a , 2 B present, so that there is a shared area of the projection lens 2 results, which is approximately at the level of the horizontal plane. The second partial light distribution 400 is achieved by real switching or mirroring of the first partial light distribution 300 and not just by expanding the first light distribution upwards into the far range, as is the case, for example, in FIG EP 1 193 440 A1 the case is.

In order to increase the light performance in the high beam case to high beam level, it can be useful to energize the light sources 12 , 12 ' in the low beam, for example to 30% of the current level in the high beam or the rated operating current. When the light source assembly 10 several light sources arranged like a matrix 12 , 12 ' it can make sense from a thermal point of view to operate all light sources with reduced current in the low beam case, e.g. with 30% of the current level in the high beam case or the nominal operating current, and in the high beam case the central light sources 12 which are arranged in the center of the light source matrix and which have a central area of the partial light distributions 300 , 400 generate with an increased current, for example with 120% of the nominal operating current of the light sources 12 , and the peripheral lights 12 , which are arranged around the center at the edge of the light source matrix and edge areas of the partial light distributions 300 , 400 illuminate (e.g. horizontally> ± 20 °), only with a lower current (e.g. <120% of the nominal operating current of the light sources 12 , in particular <100%, very particularly preferably <75%). Due to the peripheral light sources operated with less power 12 can reduce the thermal load due to the overcurrent of the central LEDs 12 be compensated.

Furthermore, it would be conceivable to use the projection optics 2 to be provided with optically effective elements (e.g. a scattering microstructure). In the case of a projection lens 2 can be the light entry side and / or the light exit side of the lens 2 be provided with the optically effective elements. The differently illuminated areas are preferred 2a , 2 B the projection optics 2 provided with differently designed optically effective elements which influence the light passing through differently in order to meet the different requirements for the first and second partial light distribution 300 , 400 To take into account. For example, in the upper (low beam) area 2a more strongly scattering and, preferably, horizontally scattering optically effective elements and in the lower (high beam) area 2 B less strongly scattering optically effective elements can be arranged in order to achieve a greater maximum of the partial light distribution 400 to generate in the high beam case.

The 6th , 9 , 12 , 15th and 20th each show a light module 105 with a mirror cover 6th to create an asymmetrical light-dark border. This mirror cover 6th in principle also has a surface extension in the horizontal plane, which is the main axis 7th includes. The mirror cover 6th however, is through the kink 8th along the main axis 7th divided into two sections right and left of a vertical plane, which is the main axis 7th includes. One in the light exit direction 103 considered left section 6c is arranged slightly below the horizontal plane and a right section 6d slightly above the horizontal plane. The kink 8th connects the two sections 6c , 6d together. The kink 8th can have a vertical surface extension so that there is a step between the sections 6c , 6d results, or have a sloping surface extension, so that there is a sloping transition between the sections 6c , 6d results. Through the front edge 18th of the left section 6c is in the low beam according to the image through the projection optics 2 a raised section 504 the asymmetrical light-dark border 502 generated on the own traffic side with right-hand traffic (cf. 8th and 14th ). Accordingly, results from the front edge 18th of the right section 6d a sunken section 506 the asymmetrical light-dark border 502 on the opposite side of the traffic. In the high beam case is through the front edge 18th of the left section 6c after the image through the projection optics 2 a raised section 604 the asymmetrical light-dark border 602 generated on the own traffic side with right-hand traffic (cf. 11 and 17th ). Accordingly, results from the front edge 18th of the right section 6d a lowered section 606 the asymmetrical light-dark border 602 on the opposite side of the traffic.

The one in the area of the front edge 18th arranged axis of rotation 5 can, for example, in the horizontal plane, along the front edge 18th of the left section 6c or along the leading edge 18th of the right section 6d run away. Also other positions of the axis of rotation 5 in between or above or below the edge 18th of sections 6c , 6d would be conceivable.

In the 6th and 7th is the mirror cover 6th Shown in a first pivot position (for example in the low beam case), the axis of rotation 5 along the front edge 18th of the left section 6c the mirror cover 6th runs. In the 9 and 10 is for this light module 105 the mirror cover 6th Shown in a second pivot position (eg in the high beam case) after being about the axis of rotation 5 was pivoted upwards. In 8th is for the light module 105 from the 6th and 7th a resulting light distribution 500 shown in the form of a low beam spot. In 11 is for the light module 105 from the 9 and 10 a resulting light distribution 600 shown in the form of a high beam spot. Due to the arrangement of the axis of rotation 5 at a distance from the horizontal plane along the leading edge 18th of the left section 6c the mirror cover 6th , the light distribution is reflected 500 , 600 along the raised section 504 the light-dark border 502 of the low beam spot 500 that after switching the mirror shutter 6th in the second pivot position an elevated section 604 the light-dark border 602 of the high beam spot 600 forms. A sunken section 506 the light-dark border 502 of the low beam spot 500 forms after switching the mirror shutter 6th in the second pivot position a lowered section 606 the light-dark border 602 of the high beam spot 600 .

Corresponding examples are in the 12 to 17th shown, where the axis of rotation 5 along the front edge 18th of the right section 6d the mirror cover 6th runs. The partial light distributions 500 , 600 from the 14th and 17th differ from those of the 8th and 11 only through the sharpness of the light-dark borders 502 , 602 . In particular, it can be noted that the section 504 ; 604 the light distribution 500 ; 600 which is not the axis of rotation 5 includes, is minimally blurred by the pivoting than the section 506 ; 606 which is the axis of rotation 5 includes and is therefore certain.

The 19th to 21st relate to another embodiment of the light module 105 where the mirror shutter 6th preferably along at least one of its sides or along a center line extending therebetween a panel part 22nd with a substantially vertical surface extension, which together with the mirror screen 6th around the axis of rotation 5 is pivotable and which is preferably up to the front edge 18th the mirror cover 6th extends. It is particularly preferred if the vertical panel part 22nd exclusively below one by the surface extension of the mirror diaphragm 6th defined plane is arranged, which in the second pivot position of the mirror shutter 6th the light source arrangement 10 is facing. With the help of the aperture part 22nd especially by mapping a leading edge 24 of the aperture part 22nd through the projection optics 2 , can be a vertical light-dark border 702 the partial light distribution 700 (see. 21st ) be generated. The mirror diaphragm creates 6th a horizontal chiaroscuro border 704 the light distribution 700 . When the mirror bezel 6th and the aperture part 22nd are in the second pivot position (cf. the position of the mirror diaphragm drawn with a solid line 6 ' in 19th ), the light distribution lights up 700 a distant area above the horizontal light-dark boundary 704 and to the side of the vertical light-dark border 702 out. By specifically switching certain light sources on and off 12 the light source arrangement 10 can light distribution 700 on different sides of the vertical light-dark border 702 be generated. The light distribution 700 can, preferably together with a corresponding one at the vertical light-dark boundary 702 mirrored other partial light distribution of another light module 106 that is part of another headlight 101 is to be used to implement a partial high beam in which the area in front of the motor vehicle is illuminated with a high beam distribution, other road users are detected in advance and the areas of the high beam distribution where other road users were detected are shaded. By swiveling the light modules horizontally 105 , 106 the width and the horizontal position of the shaded area can be dynamically adapted to the current position of the detected road users.

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was 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.

Patent literature cited

• EP 1193440 A1 [0005, 0007, 0008, 0039, 0045]
• KR 102010044654 A [0005]

Claims (16)

Light module (105) of a motor vehicle headlight (101), for emitting light in a light exit direction (103) and for implementing at least two partial light distributions (300, 500; 400, 600, 700), each together with light from at least one other The light module (106) of the headlight (101) generate an overall light distribution of the headlight (101), the light module (105) comprising: - a light source arrangement (10) for emitting light, - a projection optics (2) with a main axis (7 ) of the light module (105) comprising the focal area (3), for imaging the light emitted by the light source arrangement (10) in the light exit direction (103), and one between the light source arrangement (10) and the projection optics (2) arranged around an axis of rotation (5) movable mirror screen (6) with a flat surface extension and an essentially horizontal orientation, the axis of rotation (5) having a horizontal extension transversely to the main axis (7) of the L. ichtmoduls (105), and wherein the mirror screen (6) for switching between the partial light distributions (300, 500; 400, 600, 700) is pivotable between at least two pivot positions about the axis of rotation (5), characterized in that the axis of rotation (5) between a geometric center line (16) of the mirror diaphragm (6) transversely to the main axis (7) of the light module ( 105) and the projection optics (2) is arranged, the mirror screen (6) being rigid and pivotable in its entirety about the axis of rotation (5). Light module (105) Claim 1 , characterized in that the axis of rotation (5) runs along a front edge (18) of the mirror diaphragm (6) facing the projection optics (2). Light module (105) Claim 1 , characterized in that the axis of rotation (5) between a front edge (18) of the mirror diaphragm (6) pointing towards the projection optics (2) and the projection optics (2), but closer to the front edge (18) of the mirror diaphragm (6) , is arranged. Light module (105) according to one of the preceding claims, characterized in that the axis of rotation (5) through the focal area (3) of the projection optics (2) or through an area between the focal area (3) of the projection optics (2) and the projection optics (2 ) runs. Light module (105) according to one of the preceding claims, characterized in that a front edge (18) of the mirror diaphragm (6) facing the projection optics (2) is formed, a horizontal light-dark boundary (302, 502; 402, 602, 704) of the To generate partial light distributions (300, 500; 400, 600, 700). Light module (105) according to one of the preceding claims, characterized in that the front edge (18) of the mirror screen (6) is curved in a plane defined by the surface extension of the mirror screen (6), the front edge (18) on the sides (6a) of the mirror screen (6) protrudes further in the direction of the projection optics (2) and is set back in a central area (6b) of the mirror screen (6) with respect to the sides (6a). Light module (105) Claim 6 , characterized in that the curved course of the front edge (18) of the mirror diaphragm (6) corresponds to the course of the focal area (3) of the projection optics (2). Light module (105) according to one of the preceding claims, characterized in that the light source arrangement (10) has at least one focusing optics (14, 14 ') which bundle the emitted light before it is applied to the mirror diaphragm (6) and / or the projection optics ( 2) hits. Light module (105) Claim 8 , characterized in that the at least one bundling optics (14, 14 ') comprises an attachment lens made of a transparent material, in particular glass or plastic, which is designed to refract the emitted light when it is coupled into and / or out of the attachment lens and / or by means of total reflection of light coupled into the ancillary optics to focus on outer boundary surfaces of the ancillary optics. Light module (105) according to one of the preceding claims, characterized in that the light source arrangement (10) is arranged and / or aligned relative to the mirror screen (6) in such a way that a main emission direction (20 ') of at least a part (12', 14 ') ) the light source arrangement (10) runs parallel to a plane defined by the surface extension of the mirror diaphragm (6) in one of its pivot positions. Light module (105) according to any one of the preceding claims, characterized in that the mirror screen (6) between at least one first pivot position in which a first partial light distribution (300, 500) illuminates a shielded area below a horizontal light-dark boundary (302, 502) , and at least one second pivot position is pivotable, in which a second partial light distribution (400, 600, 700) illuminates a far area above a horizontal light-dark boundary (402, 602, 704). Light module (105) Claim 11 , characterized in that the light source arrangement (10), the mirror screen (6) and the projection optics (2) are arranged and aligned relative to one another in such a way that the light emitted by the light source arrangement (10) and / or reflected on the mirror screen (6) in the at least one first pivoting position of the mirror shutter (6) exclusively on a first area (2a) of the projection optics (2) and in the at least one second pivoting position of the mirror shutter (6) exclusively on a second area (2b) of the projection optics (2) . Light module (105) Claim 12 , characterized in that the first area (2a) and the second area (2b) of the projection optics (2) are different areas of the projection optics (2) which are not or at most marginally along a horizontal light-dark boundary (302, 502; 402, 602 , 704) of the partial light distributions (300, 500; 400, 600, 700) overlap. Light module (105) according to one of the preceding claims, characterized in that the mirror screen (6) has a screen part (22) with a substantially vertical surface extension along at least one of its sides or a center line running between them, which together with the mirror screen (6) is pivotable about the axis of rotation (5) and which preferably extends as far as the front edge (18) of the mirror screen (6). Light module (105) Claim 14 , characterized in that the vertical screen part (22) is arranged exclusively below a plane defined by the surface extension of the mirror screen (6) which faces the light source arrangement (2) in the second pivot position of the mirror screen (6). Motor vehicle headlight (101) with a first light module (105) for emitting light in a light exit direction (103) of the headlight (101) and for realizing at least two partial light distributions (300, 500; 400, 600, 700), and with at least a second light module (106) for emitting light in the light exit direction (103) and for realizing at least one other partial light distribution, one of the first parts when the first light module (105) and the at least one second light module (106) are operated simultaneously -Light distributions (300, 500; 400, 600, 700) together with the at least one other partial light distribution produce an overall light distribution of the headlight (101), characterized in that the first light module (105) is designed according to one of the preceding claims .

Images