Abstract
The invention relates to an additional headlamp (3, 3, 3) for a vehicle, which headlamp is designed to produce a light image in front of the vehicle (1) by emitting light from at least one light module (5) and to project said light image in front of the vehicle by means of a downstream imaging optical unit (8), wherein a first light module (6) is designed to produce a first light image having at least one first light distribution having at lease one first, substantially vertically oriented, linear intensity maximum, and a second light module (7) is designed to produce a second light image having a second light distribution having at lease one second, substantially rectangular intensity maximum, and the light images of both light modules (6, 7) are superposed, wherein the first intensity maximum is vertically below the second intensity maximum.
Claims
1. An additional headlight (3, 3, 3) for a vehicle, wherein the additional headlight is configured to produce a light pattern in front of the vehicle (1) by emitting light from at least one light module (4) and to project this light pattern in front of the vehicle by downstream imaging optics (8), the additional headlight comprising: a first light module (6) set up to produce a first light pattern (110, 110) with at least one first light distribution (111, 111) with at least one first essentially vertically oriented line-shaped maximum intensity (112, 112); a second light module (7) set up to produce a second light pattern (120, 120) with a second light distribution (121, 121) with at least one second, essentially rectangular maximum intensity (122, 122), wherein the first and second light patterns (110, 110, 120, 120) are superimposed, the first maximum intensity (112, 112) being located vertically under the second maximum intensity (122, 122), wherein the one first light module (6) is configured to produce a first light emission by at least one first light source (9a, 9b), and the second light module (7) is configured to produce a second light emission by at least one second light source (10a, 10b, 10c); at least one primary optical system (11), having multiple light guide elements (12a, 12b, 13a, 13b, 13c), each light guide element (12a, 12b, 13a, 13b, 13c) having a light entrance (14) surface to couple a light emission, and a light exit surface (15), the first light emission coupling into at least one first light guide element (12a, 12b) of the primary optics (11), and the second light emission coupling into at least one second light guide element (13a, 13b, 13c) of the primary optics (11); at least one mask (16) that is downstream of the primary optics (11) and that has at least one first mask opening (16a) facing the light exit surface of the first light guide element (12a, 12b), and at least one second mask opening (16b) facing the light exit surface of the second light guide element (13a, 13b, 13c), the primary optics (11) and the mask (16) producing an overall light image from the light emissions; and imaging optics (8) downstream of the mask (16) projecting the overall light image as a light pattern in the emission direction of the additional headlight (3, 3, 3) to produce an overall light pattern.
2. The additional headlight (3, 3, 3) according to claim 1, wherein the long sides of the essentially rectangular maximum intensity (122, 122) are horizontally oriented.
3. The additional headlight (3, 3, 3) according to claim 1, wherein the horizontal position of the first maximum intensity (112, 112) lies within the horizontal width of the second maximum intensity (122, 122).
4. The additional headlight (3, 3, 3) of claim 1, wherein the first maximum intensity (112, 112) and the second maximum intensity (122, 122) have a vertical separation from one another.
5. The additional headlight (3, 3, 3) according to claim 1, wherein the light exit surfaces (15) of all light guide elements (12a, 12b, 13a, 13b, 13c) lie in one surface (F).
6. The additional headlight (3, 3, 3) according to claim 5, the one surface (F) is a plane.
7. The additional headlight (3, 3, 3) according to claim 5, wherein the light guide elements (12a, 12b, 13a, 13b, 13c) together with the mask (16), which comprises the at least one first mask opening (16a) and the at least one second mask opening (16b), form the first light emission and second light emission and form a light image on the one surface (F), which has a shape that follows a Petzval surface of the imaging optics (8).
8. The additional headlight (3, 3, 3) according to claim 1, wherein the light exit surfaces (15) of all light guide elements (12a, 12b, 13a, 13b, 13c) that are associated with the same light module (6, 7) form a common light exit surface.
9. The additional headlight (3, 3, 3) according to claim 1, wherein the light guide elements (12a, 12b, 13a, 13b, 13c) of the first light module (6) are structurally separated from those of the second light module (7).
10. The additional headlight (3, 3, 3) according to claim 1, wherein a common holder (17) is provided for all light guide elements (12a, 12b, 13a, 13b, 13c).
11. The additional headlight (3, 3, 3) according to claim 1, wherein the first light module (6) comprises multiple light sources (9a, 9b), which are arranged one on top of the another, in an essentially vertical row.
12. The additional headlight (3, 3, 3) according to claim 1, wherein the second light module (7) comprises multiple light sources (10a, 10b, 10c), which are arranged one on top of the another, in an essentially horizontal row.
13. The additional headlight (3, 3, 3) according to claim 1, wherein the first light module (6) is arranged vertically over the second light module (7).
14. The additional headlight (3, 3, 3) according to claim 1, wherein the mask openings (16a, 16b) of the mask (16) are essentially line-shaped and/or rectangular.
15. The additional headlight (3, 3, 3) according to claim 1, wherein the first light module (6) and second light module (7) are arranged on a common cooling device (18).
16. The additional headlight (3, 3, 3) according to claim 1, wherein the first light module (6) and second light module (7) are controlled by a common controller (19).
17. The additional headlight (3, 3, 3) according to claim 1, wherein the additional headlight (3, 3, 3) is pivotable about at least one axis (D).
18. The additional headlight (3, 3, 3) according to claim 1, wherein the light sources (9a, 9b, 10a, 10b, 10c) are LEDs.
19. A headlight system (4) comprising: at least one main headlight (2, 2); and at least one additional headlight (3, 3, 3) according to claim 1, wherein that the light pattern (110, 110, 120, 120) of the additional headlight (3, 3, 3) has at least one other light pattern (210, 210, 220, 220) of the main headlight (2, 2) superimposed on it.
20. The headlight system (4) according to claim 19, wherein a vehicle (1) comprises a left and a right additional headlight (3, 3) and a left and a right main headlight (2, 2).
21. The headlight system (4) according to claim 20, wherein the left and right additional headlight (3, 3) each project different light patterns (110, 110, 120, 120).
22. The headlight system (4) according to claim 20, wherein the light pattern (210, 210, 220, 220) of the main headlight (221, 221) is a light distribution of a high beam light or of a low beam light (211, 211).
Description
(1) The invention and its advantages are described in detail below on the basis of non-restrictive examples, which are illustrated in the attached drawings. The figures are as follows:
(2) FIG. 1 A front view of a vehicle main headlights and inventive additional headlights;
(3) FIG. 2a A perspective view of the inventive additional headlight, without a mask;
(4) FIG. 2b A perspective view of detail A of an inventive light module;
(5) FIG. 3a A front view of the additional headlight, without mask;
(6) FIG. 3b A front view of detail B of the additional headlight;
(7) FIG. 4a A front view of the light module with holder, without mask;
(8) FIG. 4b A perspective detail view of the light module with holder, without mask, along section A-A;
(9) FIG. 5 A front view of the light module with a mask;
(10) FIG. 6 A perspective view of the light module with the mask;
(11) FIG. 7 A perspective view of the additional headlight with imaging optics;
(12) FIG. 8 A perspective rear view of the additional headlight with imaging optics and cooling fins;
(13) FIG. 9 An exploded view of the additional headlight with the imaging optics;
(14) FIG. 10 A light pattern with a line-shaped light distribution of a left additional headlight;
(15) FIG. 11 A light pattern with a line-shaped light distribution of a right additional headlight;
(16) FIG. 12 A light pattern with the (rectangular) light distribution of an additional high beam light of the left additional headlight;
(17) FIG. 13 A light pattern with the (rectangular) light distribution of an additional high beam light of the right high beam additional headlight;
(18) FIG. 14 A light pattern of the light distribution of a low beam light of the left main headlight;
(19) FIG. 15 A superimposed light pattern of low beam light from FIG. 14 and the line from FIG. 10 of the left main and additional headlights;
(20) FIG. 16 A superimposed light pattern of low beam light and the line from FIG. 11 of the right main and additional headlights;
(21) FIG. 17 A superimposed entire light pattern of left main and additional headlights from FIG. 15 and right main and additional headlights from FIG. 16;
(22) FIG. 18 A superimposed entire light pattern of the left main and additional headlights from FIG. 15 and the right main and additional headlights from FIG. 16, this light pattern being projected on the road in front of the vehicle;
(23) FIG. 19 A light pattern of the light distribution of a high beam light of the left main headlight;
(24) FIG. 20 A light pattern of the light distribution of a high beam light of the right main headlight;
(25) FIG. 21 A superimposed light pattern of high beam light from FIG. 19 and additional high-beam light from FIG. 12 of the left main and additional headlights;
(26) FIG. 22 A superimposed light pattern of high beam light from FIG. 20 and additional high-beam light from FIG. 13 of the right main and additional headlights;
(27) FIG. 23 A light pattern of the right main and additional headlights from FIG. 22, this light pattern being projected on the road in front of the vehicle;
(28) FIG. 24 A superimposed light pattern of high beam light from FIG. 10 and additional high-beam light from FIG. 12 and line light from FIG. 10 of the left main and additional headlights;
(29) FIG. 25 A superimposed light pattern of high beam light from FIG. 20 and additional high-beam light from FIG. 13 and line light from FIG. 11 of the right main and additional headlights;
(30) FIG. 26 A superimposed entire light pattern of left main and additional headlights from FIG. 24 and right main and additional headlights from FIG. 25.
(31) With reference to FIG. 1 through 27, a sample embodiment of the invention is now explained in detail. In particular, it shows the parts that are important for an inventive headlight, it being clear that a headlight also contains many other parts that allow it be used in a meaningful way in a motor vehicle, such as, in particular, a passenger vehicle or motorcycle.
(32) FIGS. 1 through 9 show a sample embodiment of an inventive additional headlight.
(33) FIGS. 10 through 27 show various light distributions, FIG. 14 and FIG. 15 showing examples of the intensities of isolux curves whose intensities apply for all FIGS. 10 through 27. For example, a line projection according to FIG. 18 has a maximum intensity of about 78 kilocandelas, which is about twice as large as the maximum intensity of foreground illumination of a low beam light according to FIG. 14, which is about 40 kilocandelas. Such a difference in intensity is necessary to allow the driver to recognize contrast of a projected line with respect to a foreground illumination, that is, a turned on low beam function of the vehicle. The light intensities used as examples can be converted into illuminance values, as is familiar to the person skilled in the art.
(34) FIG. 1 shows an overview of a vehicle 1 that has left and right main headlights 2 and 2 and inventive additional headlights 3 and 3. The two main headlights 2, 2 preferably produce a light distribution of low beam light or high beam light. The two inventive additional headlights 3, 3 produce a line-shaped light distribution and a light distribution of an additional high beam light in two modules, it being possible to activate all light distributions of the headlights individually or in combination and also to combine left and right headlights, to take the respective driving situation into account. The position of the individual headlights 2, 2, 3, and 3 on vehicle 1 can vary, and depends on the design of the vehicle, among other things. It can be advantageous for the position of the inventive additional headlights 2, 2 on vehicle 1 to be close to the road.
(35) Furthermore, a headlight system 4 is shown that comprises a main headlight 2, 2 and an additional headlight 3, 3. In this case, a light pattern 110, 110 of the additional headlight 3, 3 can have another light pattern 210, 210, 220, 220 of the main headlight 2, 2 superimposed on it. The headlight system 4 of a vehicle 1 comprises a left and a right additional headlight 3, 3 and a left and a right main headlight 2, 2. Depending on the operating mode, each of the left and right additional headlights 3, 3 can project different light patterns. The light pattern of the main headlight 2, 2 can be a light pattern of a low beam light 210, 210 or of a high beam light 220, 220.
(36) FIG. 2a shows an overview of the arrangement of the additional headlight 3, 3 in the form of an additional headlight 3. The additional headlight 3 consists of a light module 5 that emits the light and, by means of downstream imaging optics 8, shapes and projects it in front of the vehicle in the form of a light pattern 110, 110. Detail A in FIG. 2b shows the light module 5, which comprises a first light module 6 to produce first light emissions by first light sources 9a and 9b and a second light module 7 to produce second light emissions by second sources 10a, 10b, 10c, and primary optics 11. The primary optics 11 of the additional headlight 3 comprise two parts, first primary optics 11a of the first light module and second primary optics 11b of the second light module, and has multiple light guide elements 12a, 12b, 13a, 13b, 13c, each of which has a light entrance surface 14 to couple a light emission, and a light exit surface 15. In this sample embodiment, the light guide elements 12a, 12b, 13a, 13b, 13c of the primary optics form two groups for two different light distributions, which are, with the associated light sources, represented by light modules 6 and 7. The structural separation of the two light modules decouples the optical propagation paths. The first light emission couples into a first light guide element 12a, 12b of the primary optics 11 and the second light emission couples into a second light guide element 13a, 13b, 13c of the primary optics 11. The light sources 9a, 9b, 10a, 10b, 10c can be loosely or solidly attached to the respective light entrance surfaces. The nature of attachment mentioned is determined by the implementation of the light sources 9a, 9b, 10a, 10b, 10c, among other things, it being possible for the design to provide a separation between the light entrance surfaces and the light sources, to be able to protect against mechanical loads such as, for example, vibrations or different coefficients of thermal expansion of individual components.
(37) Light guide elements 12a, 12b, 13a, 13b, 13c, together with a mask 16, which comprises mask openings 16a, 16b (not shown in this figure) form the light emissions and form a light image on the common surface F, whose shape follows the Petzval surface of the imaging optics 8. The mask openings 16a, 16b of the mask 16 provide contours in the light image that are usually sharp, and the light guide elements 12a, 12b, 13a, 13b, 13c provide suitable flat emission characteristics. Usually, the cross section of the light guide elements 12a, 12b, 13a, 13b, 13c increases from the light entrance surface 14 toward the light exit surface 15. Consequently, the light exit surfaces 15 are larger than the corresponding light entrance surfaces 14 of the respective light guide elements 12a, 12b, 13a, 13b, 13c.
(38) It is preferable for the light exit surfaces 14 of all light guide elements 12a, 12b, 13a, 13b, 13c to lie in one surface F. It is favorable if the surface F is a plane, which allows the primary optics 11 to have an especially simple design. Moreover, it is advantageous if the light exit surfaces of all light guide elements 12a, 12b, 13a, 13b, 13c that are associated with the same light module 6, 7 form a common light exit surface and if all light guide elements of the first light module 6 are structurally separated from those of the second light module 7, to reduce crosstalk between the two light modules 6 and 7. For high efficiency of the additional headlight 3 this is very important, since the light emission produced should be transformed into the desired light distribution as loss-free as possible.
(39) The primary optics 11 can be made of an elastic material (e.g., silicone, photopolymers, etc.) or a rigid material (e.g., polycarbonate, thermoplastics, photopolymers, glass, etc.), the respective selection being determinable by commercial requirements. It is especially simple if the primary optics are produced by an injection molding process.
(40) FIG. 3a shows the additional headlight 3 with a holder 17 for mechanical fastening of the light modules 6 and 7 in the additional headlight 3, without a mask being mounted and without imaging optics 8. The detail B FIG. 3b shows the position of the first light module 6 to produce the line-shaped maximum intensity 8a by the associated light guide elements 12a, 12b and the position of the second light module 7 to produce the rectangular maximum intensity 122, 122 by the associated light guide elements 13a, 13b, 13c in the light distribution. In addition, an axis of rotation D is drawn in, about which the additional headlight 3 is mechanically pivotable, to allow the light distributions that are produced to be guided to follow the course of the road. A second axis of rotation to swivel about another axis, for example a horizontal axis, is not shown. Here the holder 17 is made as a single-piece, to fix the light guide elements of the primary optics 11. Consequently, only a common fastening is necessary, and the design, manufacturing, assembly; etc., are simplified.
(41) FIG. 4a and FIG. 4b each show the light modules 6 and 7 or the two-part primary optics 11, which are held in position with a holder 17. The holder can made of an elastic or a rigid material, structural reinforcements only being advantageous in the area around the light guide elements 12a, 12b, 13a, 13b, 13c and the edge area of the holder 17, to keep the weight of the holder 17 as small as possible. The light sources 9a, 9b, 10a, 10b, 10c themselves are usually held by a printed circuit board (not shown).
(42) FIG. 5 shows a front view of the light module 6, 7 with mask 13 mounted, mask 13 having two mask openings 16a, 16b, which arein addition to the light guide elements 12a, 12b, 13a, 13b, 13cintended shape the light emissions. The mask 16 makes the contours in the light distribution especially sharp, which is essential, for example, for the line projection to make it visible due to good contrast. The common mask 16 allows, among other things, economical and simple design, manufacturing, and assembly, and supports the compact and light type of construction of the additional headlight. The mask 16 is fastened in the additional headlight 3 by one or more mounting points 20, it being especially advantageous for the mounting points 20 to be in the form of drill holes, through which screws pass and connect the mask with another part of the additional headlight 3. As an alternative to screws, plug-and-socket connections, rivets, or similar things are possible. On the other hand, an adhesive connection technique, for example, is also suitable to achieve a compact and light type of construction. In this example, the holder 17 is designed so that it has cutouts at the positions of the threaded connections to support common fastening, by the previously mentioned screws, of mask 16 with a housing of the additional headlight 3, and with holder 17 lying in between, the screws connecting the mask 16 with the housing of the additional headlight 3 and it being possible for a cooling device 18 to be part of the housing. Consequently, the assembly turns out to be especially simple and quick, and in addition the number of components required for the additional headlight 3 is kept to a minimum. The use of four screws is advantageous, and achieves special stability and freedom from distortion due to mechanical or thermal loads. Screws, which are a detachable connection, have especially favorable properties with respect to maintenance. Furthermore, the construction is especially simple, if the compound component made of a mask 16, a holder 17, and a housing of the additional headlight 3 has a printed circuit board 21 (not shown) inserted into it, this printed circuit board 21 comprising at least multiple light sources 9a, 9b, 10a, 10b, 10c and being fixed by the same fastening, the printed circuit board 21 or the light sources 9a, 9b, 10a, 10b, 10c arranged on it being thermally well connected with the housing.
(43) FIG. 6 shows a perspective view of light module 6, 7 with mounted mask 16 and mask openings 16a, 16b.
(44) FIG. 7 shows a front view of the very compact additional headlight 3, which has the imaging optics 8 put on it. The axis of rotation D is shown, about which the additional headlight 3 can be mechanically pivotable.
(45) FIG. 8 shows a rear view of the additional headlight 3 with the common cooling device 18 for the light module 6, 7 located on the back. Selective use of line light and additional high beam light, preferably depending on the speed of the vehicle, allows the common cooling device 18 to be designed to be small, light, and economical. The additional headlight 3 is pivotable about the axis of rotation D. Not shown is the common controller 19, which electrically controls the two light modules 6 and 7. The common controller 19 achieves cost and weight advantages.
(46) FIG. 9 shows an exploded view of the additional headlight 3 with imaging optics 8 and holder 17 and printed circuit board 21 with light sources 9a, 9b, 10a, 10b, 10c (not shown). The holder 17 can be made of an elastic material or a rigid material. The common holder 17 for the two-part primary optics 11 supports simple design and assembly, and a compact type of construction of the additional headlight. The printed circuit board 21 usually can comprise, along with the light sources 10, other electronic circuits, such as driver and logic circuits for switching the light sources 9a, 9b, 10a, 10b, 10c or the controller, and terminal units for connection of cables for control and power supply. It is advantageous for the terminal units of both light modules to have a common design, to keep the wiring harness in the vehicle simple. The printed circuit board 21 can be designed so that it supports a suitable thermal connection between light sources 10 and cooling device 18, for example by openings in the printed circuit board 21. In many cases, that of the optical emission surface of the light source 10 is equipped with special cooling contacts, to allow a favorable connection with a heat sink. The cooling by the cooling device 18 can have an active design, i.e., by a fan for air cooling, or liquid cooling; in the example shown in the figure the cooling device 18 is a passive heat sink.
(47) FIG. 10 through FIG. 27 show light patterns in a Cartesian representation with angular scales on both axes according to the UNECE guidelines for uniform conditions for the approval of motor vehicle headlights (e.g., TRANS/WP.29/343), which show isolux lines for various intensities.
(48) After that, light patterns of light distributions are shown, the light patterns that are projected in front of the vehicle by the headlights 2, 3 that are located on the left of vehicle 1 in the direction of travel being labeled with a single apostrophe ><, and those that are projected in front of the vehicle by the headlights 2, 3 that are located on the right of vehicle 1 in the direction of travel being labeled with a double apostrophe ><.
(49) Accordingly, below a left main headlight is labeled with the reference number 2 and a right main headlight is labeled with the reference number 2, the main headlights typically having the same conception, however being built symmetrically mirrored about the longitudinal axis of the vehicle.
(50) The left additional headlight 3, which structurally corresponds, for example, to an additional headlight 3 according to FIG. 1 through 9, can, for example produce, by a first left light module 6, which structurally corresponds to the first light module 6, a light pattern 110 (FIG. 10).
(51) The right additional headlight 3, which structurally corresponds, for example, to an additional headlight 3 according to FIG. 1 through 9, can, for example produce, by a first right light module 6, which structurally corresponds to the first light module 6, a light pattern 110 (FIG. 11).
(52) Consequently, simultaneous operation of the first light module 6 of the left additional headlight 3 and the first light module 6 of the right additional headlight 3 produces a common light pattern, which is shown below in various configurations.
(53) The light patterns 110 and 110 can each have line light distributions 111, 111 with line-shaped maximum intensities 112 and 112.
(54) It is clear that the light distributions shown are partly formed by the superimposition of multiple light distributions. Consequently, the maximum intensities shown as examples are, strictly speaking, a superimposition of a single maximum intensity with another light distribution at the site of the maximum, which means that the value of the respective function at that site no longer exactly corresponds to the original maximum intensity. However, for clarity this aspect is disregarded and not separately shown in the figures. This aspect is a matter of principle, and therefore also applies in the case of the light distributions in the other figures.
(55) In this sample embodiment, the left and right main headlights 2, 2 comprise light functions for a low beam light 210, 210 and a high beam light 220, 220.
(56) FIG. 10 shows the light pattern 110 of the left additional headlight 3 with its first light distribution 111 and its first, line-shaped maximum intensity 112, i.e., a line light distribution.
(57) FIG. 11 shows the light pattern 110 of the right additional headlight 3 with its first light distribution 111 and its first, line-shaped maximum intensity 112, i.e., a line light distribution.
(58) FIG. 12 shows the light pattern 120 of the left additional headlight 3 with its second light distribution 121 and its second essentially rectangular maximum intensity 122, i.e., an additional high beam light distribution. The essentially rectangular maximum intensity 122 can be, for example, square, rectangular, trapezoidal, or even elliptical, and can have sharp or rounded corners. Special shapes of the maximum intensity 122 are just as conceivable to obtain the best possible light distribution for the traffic situation. In the same way, it is possible for the maximum intensity 122 to have a dynamic shape that is actively adapted to the respective traffic situation, for example. This dynamic adaptation can mean selectively turning off individual areas within the maximum intensity 122, to obtain glare-free high beams and to mask out the oncoming traffic at certain points.
(59) FIG. 13 shows the light pattern 120 of the right additional headlight 3 with its second light distribution 121 and its second essentially rectangular maximum intensity 122, e.g., an additional high beam light distribution.
(60) FIG. 14 shows a light pattern 210 of a light distribution 211 of a low beam light of the left main headlight 2 with typical asymmetry in the light/dark boundary.
(61) FIG. 15 shows the light pattern 110 of the left additional headlight 3 with the line-shaped light distribution 111 according to FIG. 10, on which the light pattern 210 [with ?] the low beam light distribution 211 of the left main headlight 2 according to FIG. 14 is superimposed. The maximum intensity 112 of about 78 kilocandelas is about twice as large as the maximum intensity of a foreground illumination or of a low beam light according to FIG. 14, which is about 40 kilocandelas.
(62) FIG. 16 shows the light pattern 110 of the right additional headlight 3 with the line-shaped light distribution 111 with maximum intensity 112 according to FIG. 11, on which the light pattern 210 with the low beam light distribution 211 of the right main headlight 2 is superimposed.
(63) FIG. 17 shows the superimposed entire light pattern of the light patterns 110, 110 according to FIGS. 15 and 16 of the left and right additional headlights 3, 3 with line-shaped maximum intensities 112, 112 in the respective light distribution 111, 111, and the light patterns 210, 210 of the light distributions 211, 211 of the left and right main headlights 2, 2, each with a low beam light distribution.
(64) FIG. 18 shows the entire light distribution according to FIG. 17 as a light pattern projected onto the road in front of the vehicle 1. In comparison with the previously mentioned light patterns, the projection view contains perspective image distortions.
(65) FIG. 19 shows a light pattern 220 of a high beam light distribution 221 of the left main headlight 2.
(66) FIG. 20 shows a light pattern 220 of a high beam light distribution 221 of the right main headlight 2.
(67) FIG. 21 shows the light pattern 220 with the high beam light distribution 221 of the left main headlight 2 together with the additional high beam light distribution 121 and the maximum intensity 122 of the left additional headlight 3.
(68) FIG. 21 shows the light pattern 220 with the high beam light distribution 221 of the right main headlight 2 together with the light pattern 120 of the additional high beam light distribution 121 and the maximum intensity 122 of the right additional headlight 3.
(69) FIG. 23 shows a light distribution according to FIG. 22 as a light pattern projected onto the road in front of the vehicle 1.
(70) FIG. 24 shows the light pattern 220 with the high beam light distribution 221 of the left main headlight 2 together with the light pattern 120 of the additional high beam light distribution 121 and the light pattern 110 with the line light distribution 111 of the left additional headlight 3.
(71) FIG. 25 shows the light pattern 220 with the high beam light distribution 221 of the right main headlight 2 together with the light pattern 120 of the additional high beam light distribution 121 and the light pattern 110 with the line light distribution 111 of the right additional headlight 3.
(72) FIG. 26 shows an entire light pattern of the light patterns 110, 120, 110, 120 of a superimposed entire light distribution of the left and right additional headlight 3, 3 with line-shaped maximum intensities 112, 112 in the respective light distribution 111, 111 together with the respective additional high beam light distribution 121, 121 and the respective maximum intensity 122, 122, and of the left and right main headlight 2, 2 each with a light pattern 220, 220 that comprises a high beam light distribution 221, 221.
LIST OF REFERENCE NUMBERS
(73) 1 Vehicle 2, 2 Main headlight 3, 3, 3 Additional headlight 4 Headlight system 5 Light module 6 First light module 7 Second light module 8 Imaging optics 9a, 9b Light sources of first light module 10a, 10b, 10c Light sources of second light module 11 Primary optics of additional headlight 11a First primary optics of first light module 11b Second primary optics of second light module 12a, 12b Light guide elements of first light module 13a, 13b, 13c Light guide elements of second light module 14 Light entrance surface of a light guide element 15 Light exit surface of a light guide element 16 Mask 16a First mask opening for first light module 16b Second mask opening for second light module 17 Holder 18 Cooling device 19 Controller 20 Mounting point 21 Printed circuit board F Surface D Axis of rotation 110, 110 Light pattern of first light module of additional headlight 111, 111 Light distribution of first light module of additional headlight 112, 112 Maximum intensity of light distribution of first light module of additional headlight 120, 120 Light pattern of second light module of additional headlight 121, 121 Light distribution of second light module of additional headlight 122, 122 Maximum intensity of light distribution of second light module of additional headlight 210, 210 Light pattern of main headlight for low beams 211, 211 Low beam light distribution of main headlight 220, 220 Light pattern of main headlight for main high beam light 221, 221 High beam light distribution of main headlight
