Optical system for motor vehicle headlamps

Abstract

An optical system for a motor vehicle headlamp comprises at least two optical bodies, wherein the optical bodies include a light coupling-in region, a light coupling-out region, and an outer shell surface forming a boundary of the optical bodies, the outer shell surface having an optically effective aperture edge for forming a bright-dark boundary in a far-field light distribution. The optical system comprises at least two additional optical devices, a first additional optical device being configured to guide light along a first coupling-in direction to a light coupling-in region of an optical body assigned to the first additional optical device, a second additional optical device being configured to guide light along a second coupling-in direction to a light coupling-in region of an optical body assigned to the second additional optical device, the first additional optical device and the first optical body being configured to generate a first far-field light distribution, and the second additional optical device and the second optical body being configured to generate a second far-field light distribution, wherein the second far-field light distribution is located below the bright-dark boundary of the first far-field light distribution.

Description

TECHNICAL FIELD

[0001] The invention relates to an optical system for a motor vehicle headlamp, wherein the optical system has at least two optical bodies, which each comprise:

[0002] a light-coupling input region for coupling light into the optical body,

[0003] a light-coupling output region for coupling out light coupled into the optical body, wherein the light-coupling output region is configured as a projection lens having an optical axis and a focal plane,

[0004] a housing surface forming a boundary of the optical body for deflecting light coupled into the optical body, which housing surface extends between the light-coupling input region and the light-coupling output region, wherein a section of the housing surface is configured as a light ray blind having an optically effective blind edge, wherein the optically effective blind edge is designed to constitute a bright-dark boundary in a far-field light distribution producible with the optical system, wherein the section of the housing surface configured as the light ray blind lies in a defined plane,

[0005] wherein the projection lens and the light ray blind are arranged relative to one another such that the optical axis of the projection lens lies in the defined plane and the optically effective blind edge of the light ray blind lies in the focal plane of the projection lens,

[0006] wherein the optical system has at least two additional optical devices, wherein each optical body is assigned, preferably exactly one, additional optical device, wherein each additional optical device has a light source and is set up to direct light of the light source onto the light-coupling input region of the optical body assigned to it. BACKGROUND

[0007] Optical systems according to the preamble are known from the prior art. Generally, the light distribution producible with the optical system meets certain legal provisions. If now additional requirements beyond the legal provisions are to be met, additional lighting devices meeting the additional requirements are generally provided. This is, however, associated with high costs. SUMMARY

[0008] It is the task of the invention to alleviate or eliminate the disadvantages of the prior art. Thus, it is in particular an object of the invention to create an optical system with which the production of a light distribution is improved.

[0009] This task is solved by an optical system having the features of claim 1. Preferred embodiments are specified in the dependent claims.

[0010] According to the application, a first of the at least two additional optical devices is designed to direct the light rays of the light source assigned to the first additional optical device as a first light ray bundle along a first coupling-in direction onto a light coupling-in area of the optical body assigned to the first additional optical device, wherein the first light ray bundle is bundled after coupling-in via the light coupling-in area into a region of the optically effective aperture edge of the optical body, such that the first light ray bundle has the highest light ray density in a cross section orthogonal to the optical axis of the optical body at the optically effective aperture edge, wherein a first portion of the first light ray bundle is blocked by the light ray aperture and a second portion of the first light ray bundle passes through the aperture edge and propagates in the direction of the projection lens, wherein the first coupling-in direction is oriented at a first coupling-in angle with respect to the optical axis of the optical body,

[0011] wherein a second of the at least two additional optical devices is designed to direct the light rays of the light source assigned to the second additional optical device as a second light ray bundle along a second coupling-in direction onto a light coupling-in area of the optical body assigned to the second additional optical device, wherein the second light ray bundle is bundled after coupling-in via the light coupling-in area into a region of the optically effective aperture edge of the optical body, such that the second light ray bundle has the highest light ray density in a cross section orthogonal to the optical axis of the optical body at the optically effective aperture edge, wherein a first portion of the second light ray bundle is blocked by the light ray aperture and a second portion of the second light ray bundle passes through the aperture edge and propagates in the direction of the projection lens, wherein the second coupling-in direction is oriented at a second coupling-in angle with respect to the optical axis of the optical body,

[0012] wherein the first additional optical device and the first optical body are designed and set up for radiating a first light bundle, which constitutes a first far-field light distribution, wherein the first far-field light distribution has at least a section-wise straight dark-light border, which is at least partially, preferably completely, located below the HH line,

[0013] wherein the second additional optical device and the second optical body are designed and set up for radiating a second light bundle, which constitutes a second far-field light distribution, wherein the second far-field light distribution is located below the dark-light border of the first far-field light distribution.

[0014] The following advantages result therefrom: The combined far-field light distribution can be produced using the same optical system. It can be provided that a plurality of additional optical devices are also assigned to the optical body. These additional optical devices can illuminate the light-coupling input region of the optical body symmetrically, but also asymmetrically. The coupling-in face of the optical body can be designed for focusing the incident light onto the optically effective aperture edge. The focal plane of the projection lens can be understood as a Petzval plane with a defined curvature, wherein the aperture edge of the light ray aperture follows the Petzval plane of the projection lens, so that the aperture edge lies within the Petzval plane. A sharp imaging of the bright-dark border produced with the aperture edge can thereby be achieved. The total far-field light distribution, which can be produced with the optical system, combined from the first far-field light distribution and the second far-field light distribution, is in particular the low beam distribution (Abblend-Lichtverteilung).

[0015] It can be provided that the first far-field light distribution has a first gradient and the second far-field light distribution has a second gradient, wherein the first gradient is determined along a perpendicular section through the bright-dark border of the first far-field light distribution and the second gradient is determined along a perpendicular section through the bright-dark border of the second far-field light distribution, wherein the first gradient is smaller than the second gradient, wherein preferably the first far-field light distribution meets the pre-specified luminance values in the points 50V and 50R in the low beam distribution. The quantification of the bright-dark transition of the light distribution takes place by the maximum value of the gradient along the perpendicular section through the bright-dark border. For this purpose, the logarithm of the illuminance at the measuring points with an interval of 0.1° is calculated and the difference is formed, whereby the gradient function results. The maximum value of this function is referred to as the gradient of the HD border. Since this definition only imprecisely simulates the luminance perception of humans, differently perceived HD lines can have the same measured gradient value, or different gradients can be measured in the case of apparently similar HD lines. The meaning and determination of the gradient of the bright-dark border is known to the person skilled in the art, although reference is made to this point to the UN ECE Regulierungsrichtlinie (regulation guideline) "UN-R 123 / 02 Suppl. 2, pages 67-69". Reference is also made to "Berichte der Bundesanstalt für Straßenwesen, Fahrzeugtechnik Heft F 65, Entwicklung von Kriterien zur Bewertung der Fahrzeugbeleuchtung im Hinblick auf ein NCAP für aktive Fahrzeugsicherheit (page 37)".

[0016] It can be provided that the first light beam, which constitutes the first far-field light distribution, and the second light beam, which constitutes the second far-field light distribution, at least partially overlap in the far field, which is located at a distance of 25 m from the optical system, wherein preferably the first light beam and the second light beam do not overlap in the near field, which is located up to a distance of 200 mm in front of the optical system. The point 50V is located at 0° horizontally and -0.86° vertically in the case of an ECE-compliant measurement screen. The point 50R is located at -1.72° horizontally and -0.86° vertically in the case of an ECE-compliant measurement screen. The region which is closer than 10 times the focal length of the projection lens can be understood as the near field.

[0017] It can be provided that the first optical body and the second optical body are structurally identical. Thereby the advantage of a reduced production cost is derived.

[0018] It can be provided that the first coupling-in angle and the second coupling-in angle are different. In particular, the first coupling-in angle can be smaller than the second coupling-in angle.

[0019] It can be provided that the optical axes of the first and second optical bodies are oriented parallel to each other.

[0020] It can be provided that the first additional optical device and the second additional optical device are designed differently, wherein in particular the light-coupling-out faces of the first and second additional optical devices are constituted differently in size, via which light of the light source is radiated towards the respective optical body. Thereby the advantage is derived that the amount of light which can be coupled in into the respective optical body can be varied via the size of the light-coupling-out face.

[0021] It can be provided that the first additional optical device is arranged relative to the first optical body with a first distance relative to each other, which is defined as the distance between the center point of the light-coupling-out face of the first additional optical device and the intersection of the optical axis of the first optical body with the stop edge of the first optical body, and the second additional optical device is arranged relative to the second optical body with a second distance relative to each other, which is defined as the distance between the center point of the light-coupling-out face of the second additional optical device and the intersection of the optical axis of the second optical body with the stop edge of the second optical body, wherein the first distance is smaller than the second distance. Due to the greater distance of the second additional optical device from the second optical body, the second light beam, which can be radiated with the second optical body and the second additional optical device, can be wider than the first light beam. Furthermore, the second light beam can have a lower illuminance than the first light beam. Thus, the total light beam, which can constitute a total far-field light distribution, which can be formed from the first far-field light distribution and the second far-field light distribution, formed from the first light beam and the second light beam can be wider and more uniform than the first light beam.

[0022] It can be provided that the first optical body and the first additional optical device are arranged vertically above the second optical body and the second additional optical device. Thereby the advantage of a particularly compact optical system is derived.

[0023] It can be provided that the first optical body is arranged relative to the second optical body such that the projection lens of the first optical body is arranged offset from the projection lens of the second optical body in a direction parallel to the optical axis of the first optical body.

[0024] It can be provided that the light-coupling input region of the first optical body and / or of the second optical body has a curved surface.

[0025] It can be provided that the light-coupling input region of the first optical body and / or of the second optical body is constructed spherically. Thereby the advantage is derived that the light-coupling input into the first optical body and / or into the second optical body can be carried out particularly efficiently.

[0026] It can be provided that a first light beam, which can be generated with the first optical body and which constitutes a first far-field light distribution, has a first horizontal radiation angle, and that a second light beam, which can be generated with the second optical body and which constitutes a second far-field light distribution, has a second horizontal radiation angle, wherein the first horizontal radiation angle is smaller than the second horizontal radiation angle. The radiation width of a far-field light distribution in the horizontal plane can be understood as the horizontal radiation angle. In other words, the second far-field light distribution can be wider than the first far-field light distribution. In particular, the first far-field light distribution can meet legal (width) requirements, and the second far-field light distribution can illuminate a wider area than the first far-field light distribution. It can be provided that the first optical body generates a central far-field light distribution, and that the second optical body generates a scattered far-field light distribution, wherein the scattered far-field light distribution is arranged at the left or right edge of the central far-field light distribution. In one embodiment, three optical bodies can be provided, wherein the second optical body illuminates the area left of the central far-field light distribution, and the third optical body illuminates the area right of the central far-field light distribution. In this embodiment, the total far-field light distribution is composed of three partial far-field light distributions, wherein the individual partial light distributions can partially overlap.

[0027] It can be provided that the first or second far-field light distribution, which can be generated with the first or second optical body, respectively, has a luminance maximum, wherein the optical axis of the second optical body is inclined relative to the optical axis of the first optical body by an inclination angle greater than 0°, wherein the inclination angle is such that the luminance maximum or the range of luminance maxima of the second far-field light distribution lies within the luminance maximum or the range of luminance maxima of the first far-field light distribution. In other words, the first optical body can be inclined relative to the second optical body, wherein the inclination angle is preferably greater than 0°.

[0028] It can be provided that the tilt angle is 0.1° to 0.5°, in particular 0.3°. The tilt angle is preferably between 0.1° and 5°, in particular between 0.1° and 3°, particularly preferably between 0.1° and 1°.

[0029] It can be provided that a shielding element is arranged between the first and the second optical body, which shielding element is designed to block scattered light radiating from the first additional optics in the direction of the second optical body. The shielding element can be a light barrier.

[0030] It can be provided that the light coupling-in area of the first optical body is bounded by preferably four side edges, wherein the side edge which is located highest in the vertical direction, which can be referred to as the upper edge, has at least one curved edge section, which is preferably arranged between two non-curved edge sections, wherein preferably the two side edges which are located below the side edge located highest in the vertical direction in the vertical plane have a uniform concave or convex curvature, wherein in particular the side edge which is located lowest in the vertical direction, which is arranged opposite the upper edge and can be referred to as the lower edge, can be formed linearly. The side edge which is located highest in the vertical direction can have a substantially s-shaped course. The side edge which is located highest in the vertical direction has in particular a non-constant or varying curvature (curvature which changes sign along the side edge), wherein the remaining side edges preferably have a constant curvature, which can be convex or concave. The edge which is located lowest in the vertical direction, i.e. the lower edge, can be formed linearly and is in particular closer to the additional optics in the direction parallel to the optical axis of the first optical body than the upper edge. By means of the curved edge section it is possible to reduce the light in Seg 10 (intensity at -4° vertical) on the ECE measurement screen at 25 m. It is thereby possible to homogenize the light intensity at the particularly horizontal lower boundary of the light distribution.

[0031] It can be provided that the second optical body has a second light coupling-in area and an optically effective second light barrier edge which is located vertically below the optically effective light barrier edge of the second optical body, wherein the light coupled into the optical body via the second light coupling-in area falls onto the optically effective second light barrier edge, wherein the second light barrier edge is designed to, in interaction with the second additional optics, produce a further light distribution, in particular a Signlight light distribution.

[0032] It can be provided that the first additional optics and the second additional optics each have a light coupling-out face which is arranged in the same plane, wherein said plane is arranged orthogonally to the optical axis of the first optical body.

[0033] It can be provided that, in the state in which the optical system is installed in a motor vehicle headlamp, the plane defined by the section of the housing face which is configured as a light barrier is essentially a horizontal plane.

[0034] It can be provided that the light sources of the first and second additional optics are located in the same, preferably horizontal, plane.

[0035] It can be provided that the light sources of the first and second additional optics are arranged on the same, preferably horizontal, printed circuit board.

[0036] It can be provided that the motor vehicle headlamp has an optical system according to the application.

[0037] The light distribution visible on a measurement screen is to be understood as the far field light distribution in the sense of the present disclosure, wherein the measurement screen (for checking the illumination produced by the optical system) is arranged at a distance of 25 m in front of the optical system (or of the motor vehicle headlamp having the optical system) perpendicular to the optical axis of the optical system. In this connection, reference is made to the Regulation No. 1 of the United Nations Economic Commission for Europe (UN / ECE), which specifies the approval conditions for motor vehicle headlamps for asymmetric low beam and / or high beam.

[0038] Within the scope of the present description, the terms "above", "below", "horizontal", "vertical" are to be understood as a description of the directions when the optical system is arranged in the normal position of use after the optical system is installed in a motor vehicle headlamp. BRIEF DESCRIPTION OF DRAWINGS

[0039] The application is explained further below by means of preferred embodiments, to which, however, the application is not restricted. In the drawings:

[0040] Figure 1 a first embodiment of an optical system according to the application is shown;

[0041] Figure 2 a second embodiment of an optical system according to the application is shown;

[0042] Figure 3 a side view of an optical body having additional optics is shown;

[0043] Figure 4 a perspective view of an optical body having additional optics according to Figure 3 is shown;

[0044] Figure 4a an isocandela diagram of a light distribution is shown;

[0045] Figure 5 a perspective view of a further optical body having additional optics is shown;

[0046] Figure 5a a further isocandela diagram of a light distribution is shown;

[0047] Figure 6 a further embodiment of an optical body is shown; and

[0048] Figure 7 A further embodiment of an optical body is shown. DETAILED DESCRIPTION

[0049] Figure 1 A first embodiment of an optical system 1 for a motor vehicle headlamp according to the application is shown, wherein the optical system 1 has at least two optical bodies 2a, 2b, in the shown embodiment four optical bodies 2a, 2b, 2c, 2d. The optical bodies 2a, 2b, 2c, 2d are preferably designed identically in structure. In general, each embodiment can have at least two, preferably three, four or more optical bodies 2 and additional optical devices 7 assigned to the optical bodies 2.

[0050] Figure 3 and 4 A detailed view of an optical body 2a is shown.

[0051] Each of the shown four optical bodies 2a, 2b, 2c, 2d has a light coupling input region 3 for coupling light rays of a light source into the optical body 2a, 2b, 2c, 2d and a light coupling output region 4 for coupling out light rays coupled into the optical body 2a, 2b, 2c, 2d. The light coupling output region 4 is constituted by a projection lens 4a having an optical axis x and a focal plane f.

[0052] Each optical body 2a, 2b, 2c, 2d is bounded by a housing face 5 which constitutes a deflection surface for deflecting light rays coupled into the optical body 2a, 2b, 2c, 2d. The housing face 5 extends between the light coupling input region 3 and the light coupling output region 4, wherein a section of the housing face 5 is constituted by a light ray diaphragm 6 having an optically effective diaphragm edge 6a. The light coupling input region 3 of each optical body 2a, 2b, 2c, 2d is constituted by a curved surface.

[0053] The optically effective diaphragm edge 6a is designed for constituting a bright-dark boundary in a far field light distribution producible with the optical system 1, wherein the section of the housing face 5 constituted by the light ray diaphragm lies in a defined plane. This defined plane is essentially a horizontal plane in the state in which the optical system 1 is installed in a motor vehicle headlamp.

[0054] The projection lens 4a and the light ray diaphragm 6 of the optical body 2a, 2b, 2c, 2d are arranged relative to one another such that the optical axis x of the projection lens 4a lies in a defined plane and the optically effective diaphragm edge 6a of the light ray diaphragm 6 lies on the focal plane f of the projection lens 4a or follows the Petzval surface of the projection lens 4a. The optical bodies 2a, 2b, 2c, 2d are arranged relative to one another such that the projection lenses 4a of the optical bodies 2a, 2b, 2c, 2d are arranged vertically one above the other and horizontally offset from one another.

[0055] The optical system 1 has at least two additional optical devices 7a, 7b, in the embodiment shown four additional optical devices 7a, 7b, 7c, 7d, wherein each optical body 2a, 2b, 2c, 2d is assigned exactly one additional optical device 7a, 7b, 7c, 7d, wherein each additional optical device 7a, 7b, 7c, 7d has a light source and is designed to direct the light of the light source onto the light coupling-in area of the optical body 2a, 2b, 2c, 2d assigned to the additional optical device.

[0056] Each additional optical device 7a, 7b, 7c, 7d is designed to direct the light of the light source assigned to the additional optical device as a light ray bundle along a defined coupling-in direction onto the light coupling-in area of the optical body 2a, 2b, 2c, 2d assigned to the additional optical device, wherein the light ray bundle is bundled after the coupling-in via the light coupling-in area 3 such that the light ray bundle has the highest light ray density in a cross section orthogonal to the optical axis x of the optical body 2a at the optically effective diaphragm edge 6a. The coupling-in direction is oriented relative to the optical axis of the optical body 2a, 2b, 2c, 2d at a coupling-in angle a1-a4, respectively. The coupling-in angles a1-a4 can be different or identical. The additional optical devices 7a, 7b, 7c, 7d are designed differently, wherein in particular the light coupling-out faces 8 of the additional optical devices 7a, 7b, 7c, 7d are configured differently in size via which the light of the light source is radiated in the direction of the optical body 2a, 2b, 2c, 2d.

[0057] The vertically uppermost additional optical device 7a and the optical body 2a assigned to the additional optical device are designed and configured to radiate a first light bundle, which constitutes a first far-field light distribution, wherein the first far-field light distribution has at least a section-wise straight light-dark border, which is at least partially, preferably completely, located below the HH line.

[0058] The second additional optical device 7b and the second optical body 2b arranged vertically below the uppermost optical body 2a are designed and configured to radiate a second light bundle, which constitutes a second far-field light distribution, wherein the second far-field light distribution is located below the light-dark border of the first far-field light distribution.

[0059] The first far field light distribution has a first gradient and the second far field light distribution has a second gradient, wherein the first gradient is smaller than the second gradient. The first far field light distribution fulfills in particular the predefined luminance values in the points 50V and 50R of the low beam distribution. The first light beam and the second light beam at least partially overlap each other in the far field, which is located at a distance of 25 m from the optical system 1. The first light beam and the second light beam do not overlap in the near field, which is located at a distance of up to 200 mm in front of the optical system 1.

[0060] A third optical body 2c arranged below the second optical body 2b has a third additional optical device 7c, wherein the third optical body 2c and the third additional optical device 7c are preferably provided for generating an additional light function, for example a marker light. For generating the marker light function, the third (or any other) optical body 2c can have a second light coupling-in area and an optically effective second diaphragm edge 6b located vertically below the optically effective diaphragm edge 6a thereof (see Figure 7 ). Light coupled-in via the second light coupling-in area into the optical body 2c can fall onto the optically effective second diaphragm edge, wherein the second diaphragm edge is provided for generating the marker light function in interaction with the second additional optical device.

[0061] Each additional optical device 7a, 7b, 7c, 7d is arranged at a defined distance relative to the optical body 2a, 2b, 2c, 2d assigned thereto, which is defined as the distance between the center point of the light coupling-out face 8 of the additional optical device 7a, 7b, 7c, 7d and the intersection of the optical axis x of the optical body 2a, 2b, 2c, 2d and the diaphragm edge 6a of the optical body 2a, 2b, 2c, 2d. The four optical bodies 2a, 2b, 2c, 2d and the additional optical devices 7a, 7b, 7c, 7d assigned thereto are arranged vertically on top of each other.

[0062] In an embodiment according to Figure 1 , the distance between the uppermost optical body 2a and the uppermost additional optical device 7a is smallest and becomes gradually larger in the case of the optical bodies 2b, 2c, 2d vertically located thereunder. In an embodiment according to Figure 1 , the four additional optical devices 7a, 7b, 7c, 7d are arranged in one plane or on a flat printed circuit board 9, wherein the plane is a vertical plane.

[0063] In an embodiment according to Figure 2 , the four additional optical devices 7a, 7b, 7c, 7d are arranged in one plane or on a flat printed circuit board (not shown), wherein the plane is oriented at an angle of < 0° with respect to the vertical plane.

[0064] Figure 4a Iso-illuminance diagram showing the light distribution, which can be used according to Figure 4 The optical body 2 is produced.

[0065] Figure 5 Another embodiment of an optical body 2 is shown. The light coupling-in region 3 of the optical body 2 is bounded by four side edges, of which the vertically highest side edge has at least one curved edge segment 10a, which is arranged between two non-curved edge segments 10b. In the light distribution that can be generated using the optical body 2 and the associated additional optical system 7, the curved edge segments can be used to homogenize the light intensity at the horizontal lower boundary of the light distribution. This region is known to those skilled in the art as segment 10. The side edges adjoining the uppermost side edge on the left and right have a substantially uniform convex curvature. The lowermost side edge in the vertical direction can be substantially straight. The side edges adjoining the uppermost side edge and the lowermost side edge can each be convex or concave.

[0066] Figure 5a Iso-illuminance diagram showing the light distribution, which can be used according to Figure 5 The optical body 2 is produced.

[0067] exist Figure 5a It can be seen that the horizontal line at -4° (so-called segment 10) is Figure 4a This straight course is caused by the curved edge section of the light coupling-in region 3 .

[0068] Figure 6 Another embodiment of an optical body 2 is shown, in which the optical body 2 has a hemispherical recess 11, by which the light coupled in is deflected so that no light strikes the segment 10 in the light distribution when coupled out at the projection lens 4a. The recess 11 is effectively an alternative to a vertically highest side edge having a curved edge segment 10a arranged between two non-curved edge segments 10b. Figure 6 The variant shown in FIG can also produce Figure 5 Light function.

Claims

1. An optical system (1) for a motor vehicle headlamp, wherein the optical system (1) comprises at least two optical bodies (2a, 2b), each of the optical bodies comprising: A light coupling input region (3) for coupling light into the optical body (2a, 2b), A light coupling-out region (4) for coupling out light coupled into the optical body (2a, 2b), wherein the light coupling-out region (4) is configured as a projection lens (4a), and the projection lens (4a) has an optical axis (x) and a focal plane (f). A shell surface (5) forming a boundary of the optical body (2a, 2b) is used to deflect light coupled into the optical body (2a, 2b), the shell surface (5) extending between the light coupling-in region (3) and the light coupling-out region (4), wherein a section of the shell surface (5) is formed as a light diaphragm (6) having an optically effective diaphragm edge (6a), wherein the optically effective diaphragm edge (6a) is designed to form a light-dark boundary in a far-field light distribution that can be generated using the optical system (1), wherein the section of the shell surface (5) formed as the light diaphragm (6) is located in a defined plane, wherein the projection lens (4a) and the light diaphragm (6) are arranged relative to one another such that the optical axis (x) of the projection lens (4a) lies in the defined plane and the optically effective diaphragm edge (6a) of the light diaphragm (6) lies in the focal plane (f) of the projection lens (4a), The optical system (1) comprises at least two additional optical components (7a, 7a), wherein an additional optical component (7a, 7b) is assigned to each optical body (2a, 2b), wherein each additional optical component (7a, 7b) comprises a light source and is configured to direct light from the light source to a light coupling-in region (3) of the optical body (2a, 2b) assigned to the additional optical component, It is characterized by: The first additional optical device (7a) of the at least two additional optical devices (7a, 7b) is configured to guide light from a light source assigned to the first additional optical device as a first light bundle along a first coupling-in direction onto a light coupling-in region (3) of a first optical body (2a) assigned to the first additional optical device, wherein the first light bundle is bundled after being coupled into the region of an optically effective aperture edge (6a) of the first optical body (2a) via the light coupling-in region (3), so that the first light bundle has a highest light density at the optically effective aperture edge (6a) in a cross section perpendicular to the optical axis of the first optical body (2a), wherein a first part of the first light bundle is blocked by the light aperture (6) and a second part of the first light bundle passes through the aperture edge (6a) and propagates in the direction of the projection lens (4a), wherein the first coupling-in direction is oriented at a first coupling-in angle (α1) relative to the optical axis of the first optical body (2a), wherein the second additional optical element (7b) of the at least two additional optical elements (7a, 7b) is configured to guide the light of the light source assigned to the second additional optical element as a second light bundle along a second coupling-in direction to a light coupling-in region (3) of a second optical body (2b) assigned to the second additional optical element, wherein the second light bundle is bundled after being coupled into the region of an optically effective aperture edge (6a) of the second optical body (2b) via the light coupling-in region (3), so that the second light bundle has a highest light density at the optically effective aperture edge (6a) in a cross section orthogonal to the optical axis of the second optical body (2b), wherein a first portion of the second light bundle is blocked by the light aperture (6) and a second portion of the second light bundle passes through the aperture edge (6a) and propagates in the direction of the projection lens (4a), wherein the second coupling-in direction is oriented at a second coupling-in angle (α2) relative to the optical axis of the second optical body (2b), The first additional optical device (7a) and the first optical body (2a) are designed and configured to radiate a first light beam, the first light beam forming a first far-field light distribution, wherein the first far-field light distribution has a light-dark boundary that is at least segmentally straight, and the light-dark boundary is at least partially located below the HH line. The second additional optical device (7b) and the second optical body (2b) are designed and configured to radiate a second light beam, which constitutes a second far-field light distribution, wherein the second far-field light distribution is located below the bright-dark boundary of the first far-field light distribution.

2. The optical system (1) according to claim 1, wherein the first far-field light distribution has a first gradient and the second far-field light distribution has a second gradient, wherein the first gradient is determined along a vertical cross-section passing through a bright-dark boundary of the first far-field light distribution, and the second gradient is determined along a vertical cross-section passing through a bright-dark boundary of the second far-field light distribution, wherein the first gradient is smaller than the second gradient.

3. The optical system (1) according to any one of the preceding claims, wherein the first light beam constituting the first far-field light distribution and the second light beam constituting the second far-field light distribution at least partially overlap in a far field, the far field being located at a distance of 25 m from the optical system (1).

4. The optical system (1) according to any one of claims 1 to 2, wherein the first optical body (2a) and the second optical body (2b) are structurally identical. 5 . The optical system ( 1 ) according to claim 1 , wherein the first additional optical element ( 7 a ) and the second additional optical element ( 7 b ) are designed differently.

6. The optical system according to claim 1 , wherein the first additional optical element (7a) is arranged at a first distance relative to the first optical body (2a), the first distance being defined as the distance between a center point of a light coupling-out surface (8) of the first additional optical element (7a) and an intersection point of an optical axis (x) of the first optical body (2a) and an aperture edge (6a) of the first optical body (2a), and the second additional optical element (7b) is arranged at a second distance relative to the second optical body (2b), the second distance being defined as the distance between a center point of a light coupling-out surface (8) of the second additional optical element (7b) and an intersection point of an optical axis (x) of the second optical body (2b) and an aperture edge (6a) of the second optical body (2b), wherein the first distance is smaller than the second distance.

7. The optical system (1) according to any one of claims 1 to 2, wherein the first optical body (2a) and the first additional optical device (7a) are arranged vertically above the second optical body (2b) and the second additional optical device (7b).

8. The optical system (1) according to any one of claims 1 to 2, wherein a first light beam capable of being generated by the first optical body (2a) and constituting the first far-field light distribution has a first horizontal radiation angle, and a second light beam capable of being generated by the second optical body (2b) and constituting the second far-field light distribution has a second horizontal radiation angle, wherein the first horizontal radiation angle is smaller than the second horizontal radiation angle.

9. The optical system (1) according to any one of claims 1 to 2, wherein a first or second far-field light distribution that can be generated using the first optical body (2a) or the second optical body (2b) respectively has a brightness maximum, wherein the optical axis (x) of the second optical body (2b) is inclined relative to the optical axis (x) of the first optical body (2a) at an inclination angle greater than 0°, wherein the inclination angle is such that the brightness maximum of the second far-field light distribution is located within the brightness maximum of the first far-field light distribution.

10. The optical system (1) according to any one of claims 1 to 2, wherein a shielding element is arranged between the first optical body (2a) and the second optical body (2b), and the shielding element is configured to block scattered light radiated from the first additional optical device (7a) in the direction of the second optical body (2b).

11. The optical system (1) according to claim 1, wherein the light coupling-in region (3) of the first optical body (2a) is bounded by side edges, wherein the side edge which is located highest in the vertical direction has at least one curved edge section.

12. An optical system (1) according to any one of claims 1 to 2, wherein the second optical body (2b) has a second light coupling-in region and an optically effective second aperture edge located vertically below its optically effective aperture edge (6a), wherein light coupled into the second optical body (2b) via the second light coupling-in region is incident on the optically effective second aperture edge, wherein the second aperture edge is configured to generate another light distribution in cooperation with the second additional optical device.

13. The optical system (1) according to any one of claims 1 to 2, wherein the first additional optical device (7a) and the second additional optical device (7b) each have a light coupling-out surface (8), and the light coupling-out surfaces are arranged in the same plane, wherein the plane is arranged orthogonally to the optical axis (x) of the first optical body (2a).

14. The optical system (1) according to claim 1, wherein, when the optical system (1) is installed in a motor vehicle headlamp, the defined plane in which the section of the outer surface (5) formed as the light diaphragm (6) lies is essentially a horizontal plane.

15. The optical system (1) according to claim 1, wherein each optical body (2a, 2b) is assigned exactly one additional optical element (7a, 7b).

16. The optical system (1) according to claim 1, wherein the light-dark boundary is completely below the HH line. 17 . The optical system ( 1 ) according to claim 2 , wherein the first far-field light distribution satisfies predetermined brightness values ​​at points 50V and 50R in the low beam light distribution.

18. The optical system (1) according to claim 3, wherein the first light beam and the second light beam do not overlap in a near field, the near field being located at a distance of up to 200 mm before the optical system (1).

19. The optical system (1) according to claim 4, wherein the first coupling-in angle (α1) and the second coupling-in angle (α2) are different.

20. The optical system (1) according to claim 4, wherein the optical axes of the first optical body (2a) and the second optical body (2b) are oriented parallel to each other.

21. The optical system (1) according to claim 5, wherein the light coupling-out surfaces (8) of the first additional optical element (7a) and the second additional optical element (7b) are designed to be of different sizes, and the light of the light source is radiated toward the corresponding optical body (2a, 2b) via the light coupling-out surfaces.

22. The optical system (1) according to claim 7, wherein the first optical body (2a) is arranged relative to the second optical body (2b) such that the projection lens (4a) of the first optical body (2a) is arranged offset relative to the projection lens (4a) of the second optical body (2b) along a direction oriented parallel to the optical axis (x) of the first optical body (2a).

23. The optical system (1) according to claim 7, wherein the light coupling-in region (3) of the first optical body (2a) and / or the second optical body (2b) has a curved surface. 24 . The optical system ( 1 ) according to claim 23 , wherein the light coupling-in region ( 3 ) of the first optical body ( 2 a ) and / or the second optical body ( 2 b ) is designed in the form of a spherical segment.

25. The optical system (1) according to claim 9, wherein the tilt angle is 0.1° to 0.5°.

26. The optical system (1) according to claim 25, wherein the tilt angle is 0.3°.

27. The optical system (1) according to claim 11, wherein the light coupling-in region (3) of the first optical body (2a) is bounded by four side edges.

28. The optical system (1) according to claim 11, wherein the curved edge section is arranged between two non-curved edge sections.

29. The optical system (1) according to claim 11, wherein the side edge located in the vertical plane below the side edge located at the highest position in the vertical direction has a uniform concave or convex curvature, and the side edge located at the lowest position in the vertical direction is a straight line. 30 . The optical system ( 1 ) according to claim 12 , wherein the second aperture edge is configured to generate a marking light distribution in cooperation with the second auxiliary optical unit.

31. The optical system (1) according to claim 14, wherein the light sources of the first additional optical device (7a) and the second additional optical device (7b) are located in a same plane.

32. The optical system (1) according to claim 31, wherein the light sources of the first additional optical device (7a) and the second additional optical device (7b) are arranged on a same printed circuit board.

33. A motor vehicle headlamp comprising an optical system according to any one of claims 1 to 32.

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