Low beam headlamp and method of manufacturing same

Abstract

The low beam headlamp comprises a light source assembly (28) for generating a light cone (32) consisting of less light diverging in a first transverse direction (y) than in a second transverse direction (x) perpendicular to the first transverse direction. The low-beam headlamp comprises a beam shaping device unit (42) for generating, on the basis of light, a light / dark distribution having a light / dark edge which extends at least partially obliquely with respect to the first transverse direction (y) and the second transverse direction (x). The beam shaping device unit (42) comprises a condenser lens array (44) for receiving incident light and a projection lens array (46) having a plurality of projection lenses (52) for outputting light received by the condenser lens array (44). The eccentricity of the first projection lens associated with the first condenser lens in the second transverse direction (x) is different than that of the second projection lens in the same column.

Description

Field of the Invention

[0001] The present invention relates to low beam headlights, in particular to embodiments of low beam headlights for motor vehicles and motor vehicles having such low beam headlights. In addition, the present invention also relates to a method for manufacturing a low beam headlight. Background Art

[0002] The basic characteristics of the light intensity distribution of a low beam headlight for a motor vehicle are as follows: the distribution is approximately symmetric in the horizontal direction, with a total divergence of approximately ±30° and a half-width of approximately 8...10°; and it is asymmetrically vertically distributed in the range of approximately -12°...0°, with a half-width of approximately 2...3° and a light / dark boundary (or cut-off line), the upper side of which is sharpened and has a high contrast to avoid dazzling oncoming vehicles, while the brightness on the lower side decreases gently.

[0003] Figure 10 Shows the light / dark boundary on the right side of the driving direction in the case of driving on the right. It forms a horizontal line approximately on the horizon on the right side and is slightly lower on the left side. In the "elbow-shoulder area", these two horizontal lines are connected by a rising line. The maximum value of the light distribution is located on the right side of the vertical axis and below the horizon.

[0004] Generating such a complex light intensity distribution requires a large headlight system with relatively low propagation. The light / dark boundary is generated by imaging an appropriately shaped diaphragm illuminated by a beam-shaped light source (usually an LED or a halogen lamp). Such a diaphragm can reduce the propagation of the system.

[0005] A multi-channel micro-optical implementation corresponding to this design method using a lens array is disclosed in [1]: several individual collimated LEDs are used as light sources, which illuminate a condenser microlens array (input array), then a diaphragm array and a projection lens array (output array). By converting from a traditional single-aperture device to a multi-aperture device, the focal length of the projection device can be significantly shortened, and thus the structural length of the headlight can be significantly shortened. However, the propagation of the system is still limited by the diaphragm array. The absorption diaphragm also ensures a significant heat input in the micro-device.

[0006] Replaceable variant [2] based on beam shaping using an irregular micro-optical honeycomb concentrator [3, 4]: Here, three honeycomb concentrator devices arranged close to each other are illuminated by a vertically collimated light source. Each of the three microlens arrays is responsible for illuminating the left honeycomb concentrator in the far field (the light / dark boundary below the horizon), the central honeycomb concentrator (the elbow region), and the right (the light / dark boundary on the horizon) honeycomb concentrator. Preferably, the left and right arrays are implemented with cylindrical lenses, and the central array is implemented with spherical, rectangular-edged microlenses (with an embedded diaphragm) to generate an elbow distribution. The disadvantages of this system layout are as follows:

[0007] ● There is still a residual diaphragm in the central region according to embodiment [2],

[0008] ● In the diaphragm-free embodiment, a vertical blurred image of the light / dark boundary of the elbow region appears in the light distribution below the concentrator region, [2]

[0009] · Interference light artifacts generated at the junction between adjacent honeycomb concentrators, and

[0010] · There is limited controllability of the horizontal light intensity distribution in the peripheral regions on the left and right sides only by the horizontal far-field distribution of the collimated light source.

[0011] Based on the above, it is necessary to provide a feasible solution to avoid the above disadvantages and enable sharp imaging of the light / dark boundary with good quality without using a diaphragm. Summary of the Invention

[0012] The object of the present invention is to provide a feasible solution to sharply image the light / dark boundary in a low-beam headlamp with good quality while avoiding the need to use a diaphragm.

[0013] This object is solved by the subject matter of the independent claims of the patent.

[0014] According to an embodiment, a low beam headlamp includes a beam shaping (or beam sculpting) device (or optical system) for generating a light / dark distribution including a light / dark edge (or boundary) on the basis of incident light, the light / dark edge (or boundary) extending at least partially obliquely with respect to a first lateral direction and a second lateral direction, wherein the beam shaping device includes a condenser lens array for receiving the incident light and a projection lens array having a plurality of projection lenses for outputting the light received by the condenser lens array. The condenser lens array includes a plurality of condenser lenses arranged in a matrix arrangement having a plurality of columns and a plurality of rows, wherein at least the condenser lenses of the first column are adapted to the obliquely extending light / dark edge. The first projection lens of the first condenser lens assigned to the first column of the matrix is eccentric with respect to the assigned condenser lens in a second lateral direction differently than the second projection lens of the second condenser lens assigned to the first column. This eccentric arrangement enables the interference light artifacts to be positioned at different positions in the second lateral direction, so that a sharp image without excessive interference artifacts can be obtained even without a diaphragm.

[0015] The embodiment includes a beam shaping device for generating a light / dark distribution including a light / dark edge on the basis of incident light, the light / dark edge extending at least partially obliquely with respect to a first lateral direction and a second lateral direction perpendicular thereto, wherein the beam shaping device includes a condenser lens array for receiving the incident light and a projection lens array having a plurality of projection lenses for outputting the light received by the condenser lens array. The condenser lens array includes a plurality of condenser lenses arranged in a matrix arrangement having a plurality of columns and a plurality of rows, wherein at least the condenser lenses of the first column are adapted to the obliquely extending light / dark edge. The first projection lens of the first condenser lens assigned to the first column of the matrix is eccentric with respect to the assigned condenser lens in a second lateral direction differently than the second projection lens of the second condenser lens assigned to the first column.

[0016] According to a further embodiment, as an alternative or supplement to the separate eccentric arrangement, in the low beam headlamp, the condenser lenses of the first column each include a first boundary edge and an opposite second boundary edge, the first boundary edge and the opposite second boundary edge including at least one bend and extending at least partially obliquely and in a second lateral direction, and being adapted to the obliquely extending light / dark edge in such a way. In at least one condenser lens, the bend of the first boundary edge is arranged such that the corresponding bend of the opposite second boundary edge is offset in the second lateral direction. This also enables sharp imaging of the light / dark edge without the need for a diaphragm arrangement while avoiding interference light artifacts.

[0017] Further advantageous embodiments of the invention are the subject matter of the dependent claims. Description of the Drawings

[0018] Subsequently, particularly preferred embodiments of the present invention will be described with reference to the accompanying drawings, wherein:

[0019] Figure 1 A perspective spatial view of a low beam headlamp according to an embodiment is shown;

[0020] Figure 2a Shows Figure 1 A side sectional view of an embodiment of the low beam headlamp of

[0021] Figure 2b Shows in relation to Figure 2a A top view of the low beam headlamp corresponding to

[0022] Figure 3a A side sectional view of a beam shaper of a beam shaping device according to an embodiment is shown;

[0023] Figure 3b Shows Figure 3a A top view of the beam shaping device of

[0024] Figure 3c A side sectional view of a low beam headlamp according to an embodiment is shown, wherein the light source arrangement is configurable to provide light of a light cone such that it diverges more in a first transverse direction than in a second transverse direction;

[0025] Figure 4 A top view of a known beam shaper is shown;

[0026] Figure 5a Shows the far - field distribution generated by Figure 4 Three central columns of

[0027] Figure 5b Shows Figure 5a A schematic diagram of the superposition (or overlap) of the far - field distribution of

[0028] Figure 6 A top view of a beam shaper according to an embodiment is shown;

[0029] Figure 7a Shows Figure 6 A schematic diagram of the far - field distribution of the beam shaper of

[0030] Figure 7b Shows Figure 7a A schematic diagram of the superposition of the far - field distribution of

[0031] Figure 8a -b shows a schematic diagram of a possible alternative arrangement of the condenser lenses in a condenser lens array according to an embodiment;

[0032] Figure 9Shows a flowchart of a method according to an embodiment; and

[0033] Figure 10 Shows a schematic view of the light / dark boundary as seen from the driving direction in the case of driving on the right side of the vehicle. Detailed implementation mode

[0034] Before describing the embodiments of the present invention in detail with reference to the accompanying drawings, it should be noted that in different drawings, the same and functionally equivalent elements, objects, and / or structures, as well as elements, objects, and / or structures having the same effects, are provided with the same reference numerals, so that the descriptions of these elements illustrated / represented in different embodiments are interchangeable or mutually applicable.

[0035] The embodiments described subsequently are described in combination with numerous details. However, the embodiments can also be implemented without these detailed features. In addition, for ease of understanding, the embodiments are illustrated using block circuit diagrams instead of detailed diagrams. In addition, the details and / or features of individual embodiments can be easily combined as long as there is no express contrary mention.

[0036] Embodiments of the present invention relate to a condenser lens array of a honeycomb condenser, which may be associated with respective assigned projection lenses.

[0037] The embodiment shows the geometry of the components relative to driving on the right side of the vehicle, which can be mirrored for use in the invention when driving on the left side.

[0038] The following describes a low beam headlamp with a creative beam shaping device. Such a beam shaping device enables a favorable light distribution to be generated regardless of whether the divergence of the light source used for the illumination beam shaping device is greater or smaller in different lateral directions, where the divergence in the horizontal lateral direction is greater than the divergence in the lateral direction arranged parallel to the height direction. This enables, for example, a simple implementation of a low beam headlamp whose light cone is wider in the crosswise width of the road than in the height direction.

[0039] Figure 1 Shows a perspective spatial schematic diagram of a low beam headlamp 10 for generating low beam light 12 according to an embodiment. The light distribution of the low beam light 12 includes a light / dark edge (or light / dark boundary or cut-off line) 14 and is illustrated along a second lateral direction 16 (exemplarily indicated by x) and a first lateral direction 18 (exemplarily indicated by y and arranged perpendicular to the first lateral direction). The diagram of the light / dark edge 14 is exemplarily illustrated for driving on the right side, and the light / dark edge 14 can separate the bright, illuminated area 22 from the darker, less illuminated or unilluminated area 24. The light / dark edge 14 can extend obliquely at least in a region, which is illustrated as an inclined portion 26.

[0040] Figure 2a shows a Figure 1 side cross-sectional schematic view of an embodiment of a low beam headlamp 10. The low beam headlamp may include a light source arrangement 28. If arranged, it may be configured to provide a light cone 32. The light cone may diverge more or less along a first transverse direction y than along a second transverse direction x.

[0041] Figure 2b shows a Figure 2a top view of the low beam headlamp 10 corresponding to Figure 2a or a part thereof as shown. Different divergences along the transverse directions x and y can be obtained, for example, by providing a diverging emission light source 34 (such as an LED), while any other suitable light source can also be easily employed. By means of a downstream optical device 361 (such as an aspherical lens 361), for example, a field lens arranged between the light source 34 and the collimator 362 is used for pre-collimation. The optical device 361 may alternatively or additionally have other characteristics, for example, by optionally providing a cylindrical lens 362 to provide different degrees of collimation along the transverse directions x and y, which can produce different divergences of the light source along the transverse direction. As Figure 2b shown, the field lens 361 may form (or shape) an enlarged virtual image 34' of the light source 34.

[0042] Furthermore, the low beam headlamp 10 includes a beam shaping device 42, which may include a condenser lens array 44 and a relatively arranged projection lens array 46. The beam shaping device 42 may also be provided without more components of the headlamp and be configured to generate a light / dark edge 14, which extends obliquely at least partially (i.e., at least part of the region 26) in the transverse directions x and y based on the light of the light cone 32. When the condenser lenses of the condenser lens array 44 are configured to receive incident light, the projection lenses of the projection lens array 46 may be configured to output the light received by the condenser lens array 44. For this purpose, for example, the projection lenses may be assigned to the condenser lenses. The corresponding condenser lenses of the condenser lens array 44 may be configured to image the light source or the light source arrangement into the assigned projection lenses, and the projection lenses may be configured to sharpen the image from the condenser lenses, for example, towards infinity. An embodiment of the condenser lens array enables it to sharpen the image of the light source arrangement into the projection lens array, which can achieve Köhler illumination.

[0043] According to an embodiment, the light source arrangement 28 is configured to implement a light source that divergently irradiates the transverse directions x and y through a collimator (such as a cylindrical lens 362) for collimating divergent light and having different collimation degrees along the transverse direction. Preferably, the collimation degree along the first transverse direction y is higher than the collimation degree along the second transverse direction x.

[0044] The collimator 362 may include a cylindrical lens collimator, an acylindrical collimator, or an annular collimator. Preferably, the light source arrangement 28 is configured such that the light of the light cone 32 includes a divergence that is more than ten times greater in the second transverse direction x than in the first transverse direction y.

[0045] In other words, the low-beam lamp may include a collimated light source and a micro-optical beam shaper (or beam shaper) 42. The collimated light source may be composed of an LED and secondary optics, in whole or in part, corresponding to the light source described in [2], where the secondary optics may possibly include a field lens and a collimating cylindrical lens to provide at least substantially complete collimation in the vertical direction y (as Figure 2a shown). The limitation of the divergence by the field lens 361 may occur at least along the horizontal line x. The beam shaper 42 may further include a condenser lens array 44 and a projection lens array 46, which are adjusted within the distance of the focal length relative to each other and may act as an irregular honeycomb condenser lens.

[0046] The light source 34, exemplarily configured as an LED, may be arranged within a single focal length of the field length 361 (such as a hemispherical lens, a spherical lens, or even a distorted lens) to increase the aperture angle and form an angular distribution. Accordingly, the field lens may form an enlarged virtual image 34' of the light source 34 and reduce the divergence of the light beam. According to an example, the subsequently arranged lens 362 (such as a cylindrical lens) may collimate the irradiation only in the vertical direction and may largely maintain the horizontal angular distribution as it is, where different adjusted embodiments of the device may be carried out without problems. An embodiment using a distorted lens with an optionally aspherical profile as a collimating lens in one or two spatial directions may contribute to the opening angle, aberration correction, and / or possible control of the horizontal angular distribution.

[0047] Before explaining the details of the embodiment with respect to the beam shaper device 42, first explain the interaction between the condenser lens array 44 and the projection lens array 46. The beam shaper device 42 includes an irregular, mainly rectangular-edge micro-lens or a series array of lenses having substantially the same focal length, arranged at a distance of one focal length in the light propagation direction (such as z) relative to each other.

[0048] Figure 3a Shows a vertical cross-section of the beam shaper of the beam shaper device 42 or a side cross-sectional schematic diagram of its cross-section, while Figure 3b shows a top view schematic diagram of the beam shaper device 42 as a horizontal cross-section of the beam shaper or a top view schematic diagram of the cross-section of the corresponding central region Figure 3a and.

[0049] Figure 3a and 3bEach only shows a part of the beam shaping device 42 or the condenser lens arrays 44 and 48, which has Figure 3a some of the condenser lenses 481-487 in Figure 3b 48 in 11 to 48 17 and the respectively assigned projection lenses 521-527 and 52 11 to 52 17 .

[0050] One input condenser microlens 481-487 and one respectively assigned output projection microlens 521-527 can form the channels of the honeycomb condenser, and a similar explanation applies to Figure 3b the lens 48 in 11 to 48 17 and 52 11 to 52 17 . In the illumination optical path, the condenser lens 48 images the light source 34 into the respectively assigned projection lens 52, which can be called Köhler illumination, and the projection lens 52 can image the respectively assigned condenser lens 48 towards infinity in the imaging optical path. The superposition (overlap) of these images forms the far field of the honeycomb condenser. The arrangement of the channels in the irregular rectangular grid can enable the control of the horizontal and vertical light intensity distributions to be simply separated.

[0051] As Figure 3b shown, the horizontal pitch of the output array 46 in the x direction can be slightly larger than the horizontal pitch of the input array 44 to arrange the imaging of the sources in the output array 46 in the horizontal direction to fill the area, although the main beam angle with respect to the optical axis 54 also increases with the increase of the horizontal distance.

[0052] With this arrangement, the horizontal divergence of the output of the beam shaper can be higher than the horizontal divergence of each individual honeycomb condenser channel. Each column of the honeycomb condenser array can generate an intensity column in the far field. There, the intensity columns can overlap in the horizontal direction. According to the design method of the irregular honeycomb condenser exemplary described in [3] and [4], the horizontal beam shaping can be achieved by the horizontal displacement of the vertices of the condenser microlens columns with different widths and the projection lens 52 separately, which is achieved here in the interaction with the horizontal far field distribution of the collimated light source.

[0053] The eccentric arrangement (i.e., the vertex displacement of the projection microlens 52 for beam shaping) can be configured to be constant (preferably within a column) to simplify manufacturing and avoid stray light caused by profile height differences between adjacent microlenses; however, it can also vary within a column. Preferably, horizontal beam shaping is mostly achieved by the distribution of the source formed by the field lens 361 to enable the use of the honeycomb condenser lens in as unrestricted a manner as possible for significantly more difficult vertical beam shaping. However, this approach can also be deviated from if the corresponding input is accepted.

[0054] Based on the Figure 2a vertical collimated light source shown, as Figure 3a exemplarily illustrated, vertical beam shaping can be performed by an irregular implementation of the array channels in each column in the vertical direction based on the design principles described in [3] and [4]. This can include the following:

[0055] · Different vertical aperture sizes 56 and / or eccentric aperture arrangements of the input microlenses at a constant vertical vertex position of the microlenses in the channel axis; and

[0056] · Irregular vertical vertex positions of the output microlenses within a vertical regular aperture array.

[0057] According to an embodiment, each microlens column can include a separate configuration of the input aperture and the output vertex such that a vertical light intensity distribution is generated at the corresponding horizontal position in the far field. This can help to achieve a 2D far-field distribution with different vertical positions of the light / dark boundaries on the left and right sides and mostly the same distribution below the horizon.

[0058] Figure 3c A side cross-sectional schematic view of a low beam headlight 30 according to an embodiment is shown, where the light source arrangement 28 can be configured to provide light of the light cone 32 such that it diverges more (i.e., propagates more) along the first transverse direction y than along the second transverse direction x, which is contrary to the Figure 2b case shown in. For example, the light source arrangement 28 can be configured to perform the convergence of the light cone 32 along the transverse direction x by means of the device 53. The relative position of the condenser lenses of the condenser lens array 44 with respect to the projection lenses of the projection lens array 46 can be adjusted according to the progression of the change in the optical path, and vice versa.

[0059] In a low beam headlamp according to an embodiment, a light source arrangement may be provided for generating a light cone 32 composed of light to provide incident light for a beam shaping device 42. The light cone may have an aspect ratio with respect to a first lateral direction y and a second lateral direction x, the value of which is 1 or a value deviating from this value, for example at least 2, at least 3, at least 5, at least 10 or more, where in each case it is to be understood as 2:1 or 1:2 and vice versa, i.e. also the reciprocal.

[0060] Figure 4 A top view schematic of a known beam shaper 40 is shown, which beam former 40 will form the basis for the subsequent description of the present invention.

[0061] Condensing lens 58 i，j may be arranged in columns i and rows j and may have a vertex 58V i，j . Tilted part 58S i，j may extend so as to be offset in the y direction relative to each other and be parallel to each other. As described on the basis of Figure 3a and 3b , the constant offset of the vertex 58V relative to the assigned vertex 62V i，j may take place along the respective columns i in the x direction and may vary in the y direction, which is why the offset or eccentric arrangement in the first lateral direction may be row-related, while in the second lateral direction it may be column-related. The assignment of the vertex 58V of the condensing lens relative to the vertex 62V of the projection lens is illustrated on the basis of the dashed line 59.

[0062] The beam shaping of the shoulder region of the center region of the honeycomb condenser may be carried out by using a specially formed octagonal boundary of the condensing microlenses arranged in a rectangular grid in the center region of the series array as shown in Figure 4 . In this center region, it can be found that the microlenses of the condensing lens array have bends in the upper and lower boundaries. The vertices of the condensing lens microlenses 58 are located approximately horizontally at the center of the respective channels.

[0063] The vertex positions 62V of the respective assigned projection microlenses 62 i，j are displaced column by column in the horizontal direction relative to the respective condenser vertices so that the central beam can pass through the channels as straight as possible in the horizontal direction. The lateral offset of the respective projection vertices relative to the lower bend (negative y direction) is the same in the x and y directions for all channels in the known method so that for all channels, this bend is imaged as a shoulder region of a light / dark boundary in an exactly overlapping form in the far field.

[0064] In other words, Figure 4 shows a cross-section of the center region of a known condenser array when viewed from the direction of a collimated light source.

[0065] Figure 5a shows the Figure 4 far - field distributions 613, 614, and 615 generated by the three central columns i = 3, 4, 5. The different vertical offsets on the channel between the projection vertex 62V and the bend of the upper (+y) or inclined part 58S result in a number of shoulder artifacts arranged one above the other in the far - field distribution below (-y) the actual light / dark boundary. In other words, Figure 5a shows the Figure 4 far - field distribution of the three central columns of the structure of.

[0066] The superposition of these three far - field distributions is shown in Figure 5b . The imaging of the lower boundary edge of the condenser lens forms a shoulder region of the light / dark boundary 63a in its superposition with respect to the channel axis, while the undesired imaging 63b of the respective opposite boundary edges exemplarily forms an artifact that is blurred in the vertical direction and located in the far - field distribution, resulting in an undesired distortion of the brightness distribution near the intensity maximum. These undesired effects are solved by the present invention.

[0067] Based on this, Figure 6 shows a top - down schematic view of the optical beam shaper 60, which can be used as the beam shaper of the device 42 in the low - beam headlamp described herein, for example as the beam - shaping device 42. The condenser lens array 44 indicates the condenser lenses 48 indicated by the matching indices i and j, and the projection lens array includes the correspondingly indicated projection lenses 52. The respective lens vertices are indicated by the added "V". The added "SO" indicates the upper inclined edge of the condenser lens, and the added "SU" indicates the lower inclined edge of the condenser lens.

[0068] Exemplarily, up and down (or above and below or over and under) are understood as positions along the positive y - direction and negative y - direction, which only provides a reference for the orientation or mounting direction of the low - beam headlamp and its position in a motor vehicle; however, for the embodiments described herein, this is not restrictive.

[0069] The inclined - extending portions 48SO and 48SU can be partially or fully included in different columns i. The fully - included embodiments (e.g., 48SO 4，1 and 48SU 4，1 ) result in two bends respectively in the upper and lower boundaries of the condenser lens. According to an embodiment, the inclined parts are arranged such that they are offset from each other in the second transverse direction x, see the condenser lens 48 4，1 . It can also be described in such a way that the corresponding bends in the boundaries (e.g., the two upper - right bends or the two lower - left bends) are arranged such that they are offset from each other, i.e., the edge 48SO 4，1The offset occurs in the positive x direction and in the negative y direction, or vice versa. The indicators "KLO", "KRO", "KLU" and "KRU" are used to indicate the respective bends "K" on the left "L" and right "R" and the top "O" or bottom "U". In this case, the bends on the upper right side and the lower right side are assigned to each other, and the bends on the upper left side and the lower left side are assigned to each other. According to an embodiment, the condenser lens array includes, at least in the central area, one or several columns, in which a first boundary edge and a second relative boundary edge of the condenser lens are provided. These edges include at least one bend, see, for example, the comparison of column i=2 with column i=4, where the adjustment relative to the light / dark edge is provided by an inclined extending boundary edge. The bend of the first boundary edge (such as the upper boundary edge) is arranged to be offset in the lateral direction x relative to the bend of the second boundary edge (such as the lower boundary edge), or vice versa. This helps to avoid overlapping of light / dark edges in the far field, thereby helping to improve the optical quality of imaging.

[0070] also, Figure 6 An embodiment of the invention is shown which can be implemented without taking into account the displacement of the curved portion or the inclined portion of the boundary edge. According to this embodiment, the first projection lens of the first condenser lens of a column of the matrix arrangement of condenser lenses in several columns and several rows is assigned to a different eccentricity in the second transverse direction x relative to the assigned condenser lens compared to different projection lenses of the same column, for example, this is shown based on the eccentric arrangement or displacement 64 of the i=1th column. Displacement 64 1，2 With displacement 64 1，1 and 64 1，3 different.

[0071] Optionally, but not necessarily, shift 64 1，1 and 64 1，3 Due to these different eccentric arrangements, superposition of light / dark edges can also be avoided. 2，1 and 48 1，3 The two opposite boundary edges do not need to be adapted to the obliquely extending light / dark edge 26 (even though this is possible without any problems), such as the focusing lens 48 6，1 A correspondingly inclined portion of the boundary edge not only enables the focusing lens to be adapted relative to the obliquely extending light / dark edge, but also enables it to be arranged with a displacement in the transverse direction x between the upper boundary edge (+y) and the lower boundary edge (-y).

[0072] It can also be expressed in such a way that the condenser lenses of at least one central region of the condenser lens array include opposite boundary edges, and the opposite boundary edges extend with at least one bend. It can basically run in the transverse direction x, and the run can be at least partially inclined so as to be adaptable to the light / dark edges extending obliquely with respect to the low-beam light. At least one bend of the first boundary edge can be arranged so as to be offset in the transverse direction x with respect to the corresponding bend of the second boundary edge. Therefore, several columns of the overall array can be adapted to the obliquely extending light / dark edges, while the outer regions may not have such features.

[0073] As shown on the basis of Figure 6 The vertex of the condenser lens can be eccentric separately in the direction x with respect to the vertex of the projection lens assigned to it. Here, only by way of example, the middle row deviates from the upper or lower rows, and the eccentric arrangement of the upper or lower rows is configured such that there is at least a match in the direction x. This can be described as such that the displacement of the projection lens vertex 32V with respect to the condenser lens vertex 48V of the condenser lens 48 respectively assigned to the projection lens 52 is row-related but column-independent in the transverse direction y, and row-independent but column-related in the transverse direction x.

[0074] By adapting the condenser lens and the projection lens to each other accordingly, the use of an additional diaphragm can be omitted, and a diaphragmless low-illumination lamp can be provided.

[0075] According to an embodiment, the corresponding boundary edges of the condenser lenses can specify the run of the boundary edges of the adjacent condenser lenses in the same column, as exemplified for the condenser lenses 48 2，2 and 48 2，3 as shown exemplarily by the boundary between them. Since the positions of the bends are arranged to be offset with respect to the upper and lower boundary edges of the condenser microlenses, this results in different configurations of the adjacent condenser lenses in the column.

[0076] At least one subset of the condenser lenses 48 of the condenser lens array can be formed as anastigmatic lenses. In any case, at least one subset of the projection lenses of the projection lens array can be formed as anastigmatic lenses, especially in the outer regions of the honeycomb condenser.

[0077] To avoid deformation of the condenser region described on the basis of Figure 4 , Figure 5a and Figure 5b the horizontal position of the bend in the upper boundary can be arranged to be displaced with respect to the bend in the lower part of the respective channel, as in Figure 6It is described based on the above. The possible lateral displacement of the elbow / shoulder region in the projection of the upper channel can be achieved by the separate horizontal eccentricity arrangement of the projection vertices of the channel. This means that according to the embodiment, the eccentricity arrangement of the projection lens in the lateral direction x can be adapted to the displacement of the boundary edge in the lateral direction x, and can at least partially compensate for the displacement of the light / dark edge in the light / dark distribution caused by the displacement of the boundary edge.

[0078] Compared with Figure 5a when Figure 7a FIG. 7 shows exemplary far-field distributions 683, 684, and 685 of columns i = 3, 4, and 5 of the beam shaper 60. Figure 7b FIG. 8 shows a superimposed schematic diagram of the far-field distributions 683, 684, and 685. When the upper edge 72a can be aligned and sharply imaged, the interference artifacts 72b can be horizontally eccentric column by column and relative to each other on the lower edge, which enables good suppression of the distortion of the light intensity profile and position, and this is advantageous.

[0079] In order to achieve the best possible blurring effect for the imaging of the lower shoulder, the horizontal positions of the upper and lower bends of each input microlens can have the largest possible distance relative to each other, that is, a condenser lens can be realized accordingly. For example, this can be achieved according to Figure 8a by an alternating arrangement within column I. As Figure 8a shown, the distance between the bends or the centers of the boundary edges in the lateral direction x can be at least the maximum value within a tolerance range of ±10%, ±20%, or ±30%. The positions of the bends KRO, KRU, and other bends can depend on the position of the column in the matrix, see different positions in the beam shaper 60. According to the embodiment, the magnitude of the distance 74 by which the bend KRO of the upper boundary edge is offset relative to the corresponding bend KRU of the lower boundary edge in the lateral direction x can be constant within the column, as Figure 8a shown in. For different columns, the magnitude of the distance 74 can be implemented to be different or unique. For the adjacent condenser lenses 8i = 1,..., 5 of the i-th column, the displacement direction can be alternating.

[0080] According to Figure 8b the configuration described above also shows an alternating arrangement, where the magnitude of the displacement is not constant within the row, but unique or at least different, so as to obtain the best possible horizontal blurring of the artifacts, even if this may be accompanied by an increase in the input of the implementation. Due to the increase in the number of positions of the weaker partial artifacts, Figure 8b the far-field distribution 72b of Figure 8a shows an advantage compared to the far-field distribution 72b of

[0081] FIG. 8 shows the arrangement of the bends in the microlens boundaries alternating channel by channel, while Figure 8bShows an alternating arrangement of variable horizontal distances between the upper and lower bends at each microlens boundary.

[0082] To minimize the jumps (or gaps) in the output or projection array, the displacement directions of adjacent columns can also be alternated, since the eccentric arrangement of the projection vertices can be compensated in this way and a profile with almost no jumps can be achieved. The transition between the microlens gaps that image the shoulders and the microlens gaps that only illuminate the outer regions can be configured to be continuous. That is, in addition to Figure 6 the columns in the central region shown, additional columns can be provided. Although different arrays were incorporated in [2], the present invention can provide a uniform array as long as a number of columns are assigned to the central region, for example about one third, in particular some of the dozens of columns with more than 50, more than 70, more than 80, more than 100 columns. According to an embodiment, the array can include about 130 columns, where about 20 to 25 columns and / or at least 10% and at most 30% or at least 15% and at most 25% or about 20% of the ratio can be assigned to the central region. The configuration of the overall array can be such that only some of the microlenses image the shoulder-elbow region of the central region, thus avoiding the spurious-like artifacts at the interfaces between different array regions compared to the known method of [2].

[0083] Similar to the embodiment of [2], the condenser lens array can include a first condenser lens region, a second condenser lens region, and a third condenser lens region, where the second condenser lens region is arranged between the first condenser lens region and the third condenser lens array region (for example as the central region) and includes columns with adapted inclined edges. In the transition region with the outer region or with at least one of the outer regions, only some of the condenser lenses can image the inclined light / dark edges to achieve the above-mentioned continuous transition.

[0084] The embodiment enables an implementation of the condenser lens array and the projection lens array as a single integrated series array. Possibly, but not necessarily, the condenser lens array is configured such that columns with the same column width and rows with different row heights are achieved, and the condenser lenses are arranged to fill the region and particularly include a matrix arrangement of rows and columns, thus enabling simple manufacturing. In another embodiment, the condenser lens array can include columns with the same column width and rows with row heights that vary according to the columns, with the condenser lenses arranged therein. This may result in a more complex production process, but it has the advantage that for the outer region, i.e., as the distance from the central axis increases, the reduction in brightness can be compensated by adapting the distribution of the corresponding condenser lenses.

[0085] According to an embodiment, a condenser lens, those condenser lenses having at least obliquely extending boundary edges, may form an eccentric condenser lens. Alternatively or additionally, the projection lens array may include at least one projection lens eccentric in the transverse direction y. The pitch at which the projection lenses of the projection lens array are arranged in the transverse direction x may be greater than that of the condenser lenses of the condenser lens array. The pitch may be formed in the transverse direction y for matching.

[0086] Embodiments of the present invention relate to aberration correction and / or minimization of stray light. In order to achieve sharp imaging of a light source (Koehler illumination) entering an output microlens and passing through an aperture of an input microlens to infinity through the output microlens, the focal length of the microlens may vary in the horizontal and vertical directions, for example, by providing an anamorphic lens. Alternatively or additionally, the variation may be performed not only within the microlens but also in the array. Due to the different apertures of the input microlenses, there will be jumps in the height profiles of adjacent microlenses. These jumps will undesirably refract and / or scatter light as interfering edges and will thus cause local interfering light artifacts in the output distribution. For this reason, embodiments provide equalized height profiles, and corresponding design rules for achieving as smooth a profile as possible are listed in document [5]. In order to avoid jump edges and thus avoid interfering light, adjacent microlens columns should be as similar as possible. Since the target distribution changes slowly and continuously, the difference between adjacent columns is small, which means that the occurring jumps will also be small.

[0087] Another way to minimize the remaining jump edges is to slightly displace the vertices of the input microlenses in the z direction so that the jumps in the height profiles disappear as much as possible. The resulting defocus in the illumination and imaging optical paths can in principle be partially compensated by adjusting the focal length of the microlenses on a channel-by-channel basis, but it can also be small enough to be negligible, so this adjustment is not necessary.

[0088] Returning to Figure 3a the description, this embodiment may be configured such that the condenser lenses of the condenser lens array are arranged offset from each other along the light propagation direction (z), and their positions may be matched to the height profile.

[0089] According to an embodiment, the condenser lens may include a focal length adapted to the offset positions, which are arranged on a channel-by-channel basis relative to each other to at least partially compensate for individual defocus.

[0090] According to an embodiment, the projection lenses of the projection lens array may be arranged independently, but may also be arranged interactively with the condenser lenses to be offset from each other along the light propagation direction, and the positions may be matched to the height profile.

[0091] Figure 9A flow schematic diagram of a method 900 that can be used to manufacture the low beam headlamp described herein is shown. Step 910 includes arranging a beam shaping device that is configured to generate a light / dark distribution including a light / dark edge on the basis of light, the light / dark edge extending at least partially obliquely in a first lateral direction and a second lateral direction, such that the beam shaping device includes a condenser lens array for receiving incident light and a projection lens array including a large number of projection lenses, the projection lens array being configured to output the light received by the condenser lens array. The light may diverge more or less in the first lateral direction compared to the second lateral direction perpendicular to the first lateral direction.

[0092] The boundary conditions 920 of the method are as follows: The condenser lens array includes a plurality of condenser lenses arranged in a matrix arrangement having a number of columns and a number of rows, wherein at least the condenser lenses in the first column are adapted to the obliquely extending light / dark edge. The boundary condition 930 is that, compared to the second projection lens of the second condenser lens assigned to the first column, the first projection lens of the first condenser lens assigned to the first column of the matrix has a different eccentricity in the second lateral direction with respect to the assigned condenser lens; and / or, the condenser lenses in the first column each include a first boundary edge and an opposite second boundary edge, the first boundary edge and the opposite second boundary edge extending in the second lateral direction and including at least one bend and extending at least partially obliquely, and in this way being adapted to the obliquely extending light / dark edge, wherein, in at least one condenser lens, the bend of the first boundary edge is arranged such that the corresponding bend of the second boundary edge is opposite along the second lateral direction. This preferably goes hand in hand with the fact that a separate eccentric arrangement of the projection lens in the lateral direction x with respect to the respective assigned condenser lens is provided. Embodiments of the present invention enable partial or complete maskless, which is why the system can have a very high throughput.

[0093] Furthermore, since it is not necessary to implement an embedded mask and a beam shaper, production steps can be omitted. By eliminating the absorption mask, the heat input to the element can also be reduced, which can extend the service life. The omission of the three-part beam shaper as in [4] can be reduced and enables better control of the horizontal far-field distribution in the outer region and the illumination of stray light artifacts caused by the junctions between the three regions. For example, an example of an embodiment can be arranged in a vehicle low beam headlamp to generate any desired far-field distribution in the headlamp.

[0094] Specific embodiments of the present invention include a low beam headlamp having a distorted collimated light source arrangement, the distorted collimated light source arrangement including a light source having a greater divergence in a second transverse direction than in a first transverse direction perpendicular thereto. The low beam headlamp includes a diaphragmless micro-optical beam shaper, the diaphragmless micro-optical beam shaper including a first condenser lens array having condenser lenses, the condenser lenses being arranged in columns of the same width and rows of different heights to fill a region, the condenser lenses being at least partially formed as lens segments eccentric in the first transverse direction. Further provided is a second projection lens array arranged behind it in the light propagation direction, the second projection lens array including at least partially eccentric projection lenses and having a greater pitch in the second transverse direction than the condenser lens array and an equal pitch in the first transverse direction, wherein each condenser lens images the light source into the projection lens assigned to the condenser lens, and each projection lens images the assigned condenser lens to infinity and thereby forms a far-field distribution of the low beam. The beam shaping of the beam shaper in the second transverse direction is at least partially caused by the interaction of the divergent distribution of the collimated light source arrangement in the second transverse direction and the beam shaping of the lens array in the second transverse direction. The condenser lenses are provided with corresponding bends in opposite boundaries in the first transverse direction in the central region of the condenser lens array to generate the elbow line of the light / dark boundary in the far-field distribution. For at least one subset of the condenser lenses of the columns of the condenser lens array, the positions of the bends are different in the second transverse direction, and the assigned projection lenses include lens segments having different eccentric arrangements in the second transverse direction.

[0095] Based on the beam scheme used in [2], the low beam headlamp can be designed to completely eliminate the need for a diaphragm, and it also abandons the three-part structure of the beam former, and according to the present invention, an implementation of using a cylindrical honeycomb condenser as the outer section is provided. Compared with the concepts in [1] and [2], the advantages of the present system include: by means of the beam shaping of the irregular honeycomb condenser, combined with the horizontal far-field distribution of the light source, the control of the horizontal light intensity distribution in the outer left and right regions is improved, and the suppression of direct light is improved.

[0096] Even if some aspects have been described in the context of a device, it is understood that the aspects also represent a description of the corresponding method, and thus the blocks or structural components of the device should also be understood as corresponding method steps or features of method steps. By analogy, the aspects described in a method step or as a method step also represent a description of the corresponding block or detail or feature of the corresponding device. Some or all of the method steps may be performed when using a hardware device, such as a microprocessor, a programmable computer, or an electronic circuit. In some embodiments, some or several of the most important method steps may be performed by such a device.

[0097] The above embodiments merely represent an illustration of the principles of the present invention. It will be understood that other technicians in the art will appreciate modifications and variations to the arrangements and details described herein. For this reason, the present invention is intended to be limited only by the scope of the appended claims, rather than by the specific details set forth herein by way of description and elaboration of the embodiments.

[0098] References:

[0099] [1] F.Bauer, G. ,,, "Mikroprojektions-Lichtmodul für einen Kraftfahrzeugscheinwer-fer", AT 514967 B1.

[0100] [2] P.Schreiber, C.Li, D.Michaelis, C. , S.Fischer:,, "Abblendlichtscheinwerfer", DE 10 2018 217 215 A1

[0101] [3] C.Li, P.SChreiber, D.Michaelis, Ch. , St.Fischer, U.D.Zeitner: "Etendue conserving light shaping using microlens arrays with irregular lenslets", SPIE 10693 (2018) 1069304.

[0102] [4] C.Li, P.Schreiber, D.Michaelis, C. , S.Fischer:,, "Optischer Strahlformer", DE 10 2017 217 345 B4

[0103] [5] P.Schreiber, L.Wilhelm, "Light shaping with micro-optical irregularfly′s eye con-densers",

[0104] Proc.SPIE Vol.12078, IODC 2021, 1207813 (19.Nov.2021); doi:10.1117 / 12.2603648.

Claims

1. Low-beam headlamp, comprising: a beam shaping device (42) for generating a light / dark distribution including a light / dark edge (26) on the basis of light, the light / dark edge (26) extending at least partially obliquely with respect to a first transverse direction (y) and a second transverse direction (x) perpendicular thereto, wherein the beam shaping device (42) includes a condenser lens array (44) for receiving incident light and a projection lens array (46) having a large number of projection lenses (52), the projection lens array (46) being for outputting the light received by the condenser lens array (44); wherein the condenser lens array (44) includes a plurality of condenser lenses (48), the plurality of condenser lenses (48) being arranged in a matrix arrangement having a number of columns and a number of rows, wherein at least the condenser lenses (48) of the first column are adapted to the obliquely extending light / dark edge (26); wherein the first projection lens of the first condenser lens assigned to the first column of the matrix has a different eccentricity relative to the assigned condenser lens in the second transverse direction (x) compared to the second projection lens of the second condenser lens assigned to the first column.

2. The low-beam headlamp according to claim 1, wherein the condenser lenses (48) of the first column include boundary edges extending at least partially obliquely in the first transverse direction and the second transverse direction (x), the boundary edges being adapted to the obliquely extending light / dark edge (26).

3. The low-beam headlamp according to claim 2, wherein the condenser lenses (48) of the first column include a first boundary edge and an opposite second boundary edge, each boundary edge extending at least partially obliquely in the first transverse direction and the second transverse direction (y, x) and being adapted to the obliquely extending light / dark edge (26).

4. The low-beam headlamp according to claim 3, wherein the inclined portion (48SO) of the first boundary edge is arranged such that it is displaced in the second transverse direction (x) relative to the inclined portion (48SU) of the second boundary edge.

5. The low-beam headlamp according to any one of the preceding claims, wherein the condenser lenses (48) of the first column each include a first boundary edge and an opposite second boundary edge, the first boundary edge and the opposite second boundary edge extending in the first transverse direction and the second transverse direction (y, x) and including at least one bend and extending at least partially obliquely, and in this way being adapted to the obliquely extending light / dark edge (26); Among them, in at least one condenser lens, the bend of the first boundary edge is arranged such that it is offset in the second transverse direction (x) relative to the corresponding bend of the second boundary edge.

6. The low beam headlamp according to claim 5, wherein the condenser lens is a first condenser lens, and the second boundary edge of the first condenser lens (48 2,1 ) defines the orientation of the first boundary edge of the adjacent second condenser lens (48 2,2 ) or the orientation of the first boundary edge of the first row; Among them, The second condenser lens (48 2,2 ) includes a second boundary edge opposite to the first boundary edge, the second boundary edge including at least one bend along the first transverse direction and the second transverse direction (y, x) and extending at least partially obliquely, and being adapted in this way to the light / dark edge extending obliquely; wherein the bend of the second boundary edge of the second condenser lens is arranged such that it is offset in the second transverse direction (x) relative to the bend of the first boundary edge of the second condenser lens.

7. The low beam headlamp according to claim 5 or 6, wherein the distance from the bent portion of the first boundary edge to the bent portion of the second boundary edge in the second transverse direction (x) is the maximum value within the tolerance range, and the position of the bent portion of the first boundary edge and / or the second boundary edge in the second transverse direction (x) depends on the position of the first column in the matrix.

8. The low beam headlamp according to any one of claims 5 to 7, wherein the bent portion of the first boundary edge is arranged at a distance such that it is offset in the second transverse direction (x) with respect to the corresponding bent portion of the second boundary edge, the distance value being constant within the first column and different or unique for different columns of the condenser lenses (48) in the condenser lens array (44) adapted to the obliquely extending light / dark edge (26).

9. The low beam headlamp according to any one of claims 5 to 8, wherein the bent portion of the first boundary edge is arranged in the displacement direction such that it is offset in the second transverse direction (x) with respect to the corresponding bent portion of the second boundary edge, the displacement direction alternating within the first column and for adjacent condenser lenses (48) in the first column.

10. The low beam headlamp according to any one of claims 5 to 9, wherein the vertex (48V) of the projection lens (52) assigned to the condenser lens (48) is individually eccentric in the second transverse direction (x) with respect to the vertex (52V) of the projection lens (52).

11. The low beam headlamp according to any one of claims 5 to 9, wherein, compared with the second projection lens, the different eccentric arrangements of the first projection lens in the second transverse direction (x) are adapted to the displacement of the boundary edge in the second transverse direction (x) and at least partially compensate for the displacement of the light / dark edge (26) in the light / dark distribution caused by the displacement of the boundary edge.

12. The low beam headlamp according to any one of the preceding claims, wherein the first condenser lens (48 2，1 ) of the first column is arranged to be directly adjacent to the second condenser lens (48 2,2 ) of the first column, and the second condenser lens (48 2,2 ) is arranged between the first condenser lens (48 2，1 ) and the third condenser lens (48 2，3 ) of the first column; Among them, The third projection lens is assigned to the third condenser lens (48 2，3 ), and compared with the first projection lens with respect to the first condenser lens (48 2，1 ), the third projection lens is eccentric with respect to the third condenser lens (48 2，3 ) such that matching occurs along the second lateral direction (x).

13. The low beam headlamp according to any one of the preceding claims, wherein the displacement of the projection lens vertex (52V) with respect to the condenser lens vertex (48V) of the condenser lens (48) respectively assigned to the projection lens (52) is row-related but column-independent in the first transverse direction (y) and row-independent but column-related in the second transverse direction (x).

14. The low beam headlamp according to any one of the preceding claims, wherein the condenser lenses (48) of a plurality of columns of the condenser lens array (44) are adapted to the obliquely extending light / dark edge (26); wherein the plurality of columns form a central arrangement region of the condenser lens array (44).

15. The low-beam headlamp according to any one of the preceding claims, wherein the condenser lens array (44) comprises a first condenser lens array region, a second condenser lens array region and a third condenser lens array region, wherein the second condenser lens array region is arranged between the first condenser lens array region and the third condenser lens array region and comprises the first column, and wherein in the transition region from the second condenser lens array region on one hand to the first condenser lens array region or the third condenser lens array region on the other hand, only some of the condenser lenses (48) image the obliquely extending light / dark edge (26).

16. The low-beam headlamp according to any one of the preceding claims, wherein at least one subset of the condenser lenses (48) of the condenser lens array (44) is formed as anastigmatic lenses.

17. The low-beam headlamp according to claim 16, wherein at least one subset of the projection lenses (52) of the projection lens array (46) is formed as anastigmatic lenses.

18. The low-beam headlamp according to any one of the preceding claims, wherein the condenser lenses (48) of the condenser lens array (44) are arranged such that they are offset relative to each other in the light propagation direction (z) perpendicular to the first lateral direction and the second lateral direction (y, x), and their positions match with respect to the height profile.

19. The low-beam headlamp according to claim 18, wherein the condenser lenses (48) comprise focal lengths adapted to the offset positions, the offset positions being arranged on a channel-by-channel basis with respect to each other to at least partially compensate for individual defocusing.

20. The low-beam headlamp according to any one of the preceding claims, wherein the projection lenses (52) of the projection lens array (46) are arranged such that they are offset relative to each other in the light propagation direction (z) perpendicular to the first lateral direction and the second lateral direction (y, x), and wherein their positions match with respect to the height profile.

21. The low-beam headlamp according to any one of the preceding claims, comprising a light source arrangement (28) for generating a light cone (32) composed of light to provide the incident light for the beam shaping device.

22. The low-beam headlamp according to claim 21, wherein the light cone has an aspect ratio of at least 2 with respect to the first lateral direction and the second lateral direction.

23. The low-beam headlamp according to claim 22 or 23, wherein the light diverges less in the first lateral direction (y) than in the second lateral direction (y).

24. The low-beam headlamp according to any one of the preceding claims, wherein the condenser lens array (44) is arranged such that the light source arrangement (28) is sharply imaged into the projection lens array (46) to provide Köhler illumination.

25. The low beam headlamp according to any one of claims 21 to 24, wherein the light source arrangement (28) includes a light source that irradiates divergently in the first transverse direction and the second transverse direction (y, x), and a collimator for collimating the divergent light from the light source, and the degree of collimation of the collimator in the first transverse direction (y) is higher than that in the second transverse direction (x).

26. The low beam headlamp according to claim 25, wherein the light source arrangement (28) includes an aspherical lens (361) for pre-collimation between the light source (34) and the collimator (362).

27. The low beam headlamp according to claim 25 or 26, wherein the collimator (362) includes a cylindrical lens collimator or a non-cylindrical collimator or an annular collimator.

28. The low beam headlamp according to any one of the preceding claims, wherein the light source arrangement (28) is configured such that the light of the light cone (32) includes a divergence, and the divergence is more than ten times greater in the second transverse direction (x) than in the first transverse direction (y).

29. The low beam headlamp according to any one of the preceding claims, wherein the condenser lens array (44) and the projection lens array (46) are formed as a single integrated series array.

30. The low beam headlamp according to any one of the preceding claims, wherein the condenser lens array (44) includes condenser lenses (48), and the condenser lenses (48) are arranged in columns with the same column width and rows with different row heights respectively to fill the area.

31. The low beam headlamp according to any one of the preceding claims, wherein the condenser lens array (44) includes condenser lenses (48), and the condenser lenses (48) are arranged in columns with the same column width and rows with row heights that vary on a column-by-column basis respectively to fill the area.

32. The low beam headlamp according to any one of the preceding claims, wherein at least the first column includes a condenser lens (48) that is eccentric in the first transverse direction (y).

33. The low beam headlamp according to any one of the preceding claims, wherein the projection lens array (46) includes at least one projection lens that is eccentric in the first transverse direction (y).

34. The low beam headlamp according to any one of the preceding claims, wherein the projection lens (52) is arranged with a greater spacing in the second transverse direction (x) than the spacing of the condenser lenses (48) of the condenser lens array (44); and the spacing arranged in the first transverse direction (y) is the same.

35. A low beam headlamp, comprising: a light source arrangement (28) for generating a light cone (32) composed of light that diverges less in the first transverse direction (y) than in the second transverse direction (x), the second transverse direction (x) being perpendicular to the first transverse direction (y); A beam shaping device (42) for generating a light / dark distribution including a light / dark edge (26) on the basis of light, the light / dark edge (26) extending at least partially obliquely with respect to the first transverse direction (y) and the second transverse direction (x), wherein the beam shaping device (42) includes a condenser lens array (44) for receiving incident light and a projection lens array (46) having a large number of projection lenses (52), the projection lens array (46) being for outputting the light received by the condenser lens array (44); wherein the condenser lens array (44) includes a plurality of condenser lenses (48), the plurality of condenser lenses (48) being arranged in a matrix arrangement having a number of columns and a number of rows, wherein at least the condenser lenses (48) of the first column are adapted to the obliquely extending light / dark edge (26); wherein the condenser lenses (48) of the first column each include a first boundary edge and an opposite second boundary edge, the first boundary edge and the opposite second boundary edge extending along the first transverse direction and the second transverse direction (y, x) and including at least one bend and extending at least partially obliquely, and being thus adapted to the obliquely extending light / dark edge (26); wherein, in at least one condenser lens, the bend of the first boundary edge is arranged such that it is offset along the second transverse direction (x) with respect to the corresponding bend of the second boundary edge.

36. The low beam headlamp according to claim 35, wherein, The first projection lens of the first condenser lens assigned to the first column of the matrix has a different eccentricity along the second transverse direction (x) with respect to the assigned condenser lens than the second projection lens of the second condenser lens assigned to the first column.

37. A low beam headlamp, comprising: A distorted collimated light source arrangement (28) including a light source having a greater divergence along the second transverse direction than along the first transverse direction perpendicular thereto; An apertureless micro-optical beam shaper including: a first condenser lens array (44) having condenser lenses (48) arranged in columns of the same width and rows of different heights to fill a region, the condenser lenses (48) being at least partially formed as lens segments eccentric along the first transverse direction (y); and a second projection lens array (46) arranged behind it in the light propagation direction, the second projection lens array (46) including at least partially eccentric projection lenses (52) and including a greater pitch along the second transverse direction (x) than the condenser lens array (44) and an equal pitch along the first transverse direction (y), wherein each condenser lens images the light source into the projection lens assigned to the condenser lens, and each projection lens images the assigned condenser lens to infinity; and thereby forming the far-field distribution of the low beam; wherein the beam shaping of the beam shaper in the second lateral direction (x) is caused at least in part by the interaction between the divergence distribution of the collimated light source arrangement (28) in the second lateral direction (x) and the beam shaping of the lens array in the second lateral direction (x); wherein the condenser lens (48) is provided with corresponding bends in the relative boundaries in the first lateral direction (y) in the central region of the condenser lens array (44) to generate a shoulder line of the light / dark boundary in the far-field distribution; and for at least one subset of the condenser lenses (48) of the columns of the condenser lens array, the positions of the bends in the second lateral direction (x) are different, and the assigned projection lenses (52) include lens segments having different eccentric arrangements in the second lateral direction (x).

38. A motor vehicle having a low beam headlamp according to any one of the preceding claims.

39. A beam shaping device (42) for generating a light / dark distribution on the basis of incident light, the light / dark distribution including a light / dark edge (26) extending at least partially obliquely with respect to a first lateral direction (y) and a second lateral direction (x) perpendicular thereto, wherein the beam shaping device (42) comprises: a condenser lens array (44) for receiving the incident light; and a projection lens array (46) having a plurality of projection lenses (52) for outputting the light received by the condenser lens array (44); wherein the condenser lens array (44) comprises a plurality of condenser lenses (48) arranged in a matrix arrangement having a plurality of columns and a plurality of rows, wherein at least the condenser lenses (48) of the first column are adapted to the obliquely extending light / dark edge (26); wherein the first projection lens of the first condenser lens of the first column of the matrix has a different eccentricity in the second lateral direction (x) with respect to the assigned condenser lens compared to the second projection lens of the second condenser lens assigned to the first column.

40. The beam shaping device according to claim 39, configured as a low beam headlamp.

41. A method (900) of manufacturing a low beam headlamp, comprising: arranging (910) a beam shaping device for generating a light / dark distribution including a light / dark edge on the basis of light, the light / dark edge extending at least partially obliquely with respect to a first lateral direction and a second lateral direction, such that the beam shaping device comprises a condenser lens array for receiving incident light and a projection lens array having a plurality of projection lenses for outputting the light received by the condenser lens array; such that the condenser lens array comprises a plurality of condenser lenses arranged in a matrix arrangement having a plurality of columns and a plurality of rows, wherein at least the condenser lenses of the first column are adapted to the obliquely extending light / dark edge; such that, compared to the second projection lens of the second condenser lens assigned to the first column, the first projection lens of the first condenser lens assigned to the first column of the matrix has a different eccentricity in the second lateral direction relative to the assigned condenser lens; or such that the condenser lenses of the first column each include a first boundary edge and an opposite second boundary edge, the first boundary edge and the opposite second boundary edge extending in the second lateral direction and including at least one bend and extending at least partially obliquely, and being adapted in this way to the obliquely extending light / dark edge; wherein, in at least one condenser lens, the bend of the first boundary edge is arranged such that it is offset in the second lateral direction relative to the corresponding bend of the second boundary edge.

Images