• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Lighting system (1), comprising: - a substantially flat PCB (2) printed circuit board, - a first light guide (3) substantially flat, where the first light guide (3) is arranged substantially parallel to the printed circuit board (2), - a second light guide (4) substantially flat, where the second light guide (4) is arranged substantially parallel to the printed circuit board (2) and substantially parallel to the first light guide (3), - at least a first light emitter (5) configured to direct an emitted light towards an adjacent lateral surface (12) of the first light guide (3), and - at least a second light emitter (6) configured to direct an emitted light towards an adjacent lateral surface (15) of the second light guide (4), wherein the at least one first light emitter (5) and the at least one second light emitter (6) emit light in a direction parallel to the printed circuit board (2), where the first light guide (3) is arranged at least partially overlapping the second light guide (4) in a transverse direction to the lighting system (1), so that the rear surface (11) of the first light guide (3) faces the surface front (13) of the second light guide (4). In other embodiments it may comprise a third light guide (16) and a third light emitter (20). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2762750A1
    申请号:ES201831135
    申请日:2018-11-23
    公开日:2020-05-25
    发明作者:Calvo Jose Luis Cayuela；Sueiro Xesus Bendana；Martin Hupel；Francisco Sanchis
    申请人:SEAT SA；
    IPC主号:
    专利说明:

    [0002] Lighting system
    [0004] Field of the Invention
    [0005] The present invention relates to a lighting system comprising several light guides, of special application both inside and outside of vehicles.
    [0007] Background of the Invention
    [0009] Lighting systems are known that generate dynamisms and composition of lighting effects that employ sets of LEDs and LCD screens. These systems allow ceremonies to be generated, patterns of different colors to be displayed, information to be communicated and the different modes and modes of operation to be distinguished.
    [0011] US 2015/0316227 A1, entitled "Stacked Lightguide Tailight Article", describes a tail light article that includes at least two optically transparent light guides stacked together to provide the vehicle signaling function. The rear light article comprises: a first optically transparent light guide with a light emitting front surface, an opposite rear surface and a side surface separating the front and rear surface, and a plurality of light extraction elements on or within the first light guide optically transparent, the light extraction elements being configured to direct light through the emission surface; a second optically transparent light guide having a light emitting front surface, an opposite rear surface and a side surface separating the front surface and the back surface and a plurality of light extraction elements on or within the second guide of light is optically transparent, the light extraction elements being configured to direct light through the emission surface; a first low-index layer that separates the rear surface of the first optically transparent light guide from the front surface of the second optically transparent light guide, the first low-index layer having a refractive index less than a refractive index of the first optically transparent light guide and the second optically transparent light guide; a first light source configured to direct light toward the side surface of the first optically transparent light guide, the first light source generating a first signaling function; a second light source configured to direct light to the Side surface of the second optically transparent light guide, the second light source generating a second signaling function; and a light reflection element, where the second optically transparent light guide is arranged between the first optically transparent light guide and the light reflection element.
    [0013] The proposals of the prior art manage to generate light effects through different configurations. However, these lighting systems are usually quite bulky, which means that they require quite a lot of space and relatively large packaging for handling.
    [0014] Summary of the invention
    [0016] Therefore, the object of the invention is to provide a more compact lighting system, which allows a reduction in space and a decrease in the necessary packaging.
    [0018] The invention provides a lighting system comprising:
    [0020] - a substantially flat PCB printed circuit board, where the printed circuit board comprises a first main surface, a second main surface, opposite the first main surface, and at least one lateral edge disposed between the first main surface and the second surface principal,
    [0022] - a first substantially flat light guide, where the first light guide is arranged substantially parallel to the printed circuit board, where the first light guide comprises a front surface, a rear surface, opposite the front surface, and at least a side surface, arranged between the front surface and the back surface,
    [0023] - a second substantially flat light guide, where the second light guide is arranged substantially parallel to the PCB and substantially parallel to the first light guide, where the second light guide comprises a front surface, a rear surface, opposite the front surface, and at least one side surface, arranged between the front surface and the back surface,
    [0025] - at least a first light emitter configured to direct emitted light towards a lateral surface of the first light guide adjacent to the at least one first light emitter,
    [0027] - at least one second light emitter configured to direct emitted light towards a lateral surface of the second light guide adjacent to the at least one second light emitter,
    [0028] the front orientation reference being the location of the first light guide in the lighting system, in which the at least one first light emitter and the at least one second emitter Light beams emit light in a direction parallel to the printed circuit board, where the first light guide is arranged at least partially overlapping the second light guide in a direction transverse to the lighting system, so that the rear surface of the first light guide is facing the front surface of the second light guide.
    [0030] The fact that the at least one first light emitter and the at least one second light emitter emit in a direction parallel to the printed circuit board allows for a more compact system, and therefore a reduction in the packaging required.
    [0032] The invention also provides a vehicle comprising the above lighting system.
    [0034] Other advantageous embodiments of the invention are set out in the dependent claims.
    [0036] Brief description of the figures
    [0038] Illustrative, and in no way limiting, embodiments of the subject of the present invention will now be described with reference to the accompanying drawings, in which:
    [0040] Figure 1 shows a schematic view of a first embodiment of a lighting system of the invention.
    [0042] Figure 2 shows a schematic view of a second embodiment of a lighting system of the invention.
    [0044] Figure 3 shows a schematic view of a third embodiment of a lighting system of the invention.
    [0046] Figure 4 shows a perspective view of the third embodiment of a lighting system of the invention.
    [0048] Figure 5 shows a perspective view of a fourth embodiment of a lighting system of the invention.
    [0049] Figure 6 shows an enlarged detail of figure 5.
    [0051] Figure 7 shows a sectional and detailed view of the first light guide of the invention.
    [0053] Detailed description of the invention
    [0055] Figure 1 shows a first embodiment of a lighting system 1 of the invention.
    [0056] This lighting system 1 of figure 1 has as its main elements a printed circuit board (PCB) 2 that is substantially flat, a first light guide 3, a second light guide 4, a first light emitter 5 and a second light emitting 6.
    [0058] The printed circuit board 2 has a first main surface 7, a second main surface 8, opposite the first main surface 7, and side edges 9 arranged between the first main surface 7 and the second main surface 8. Its main surfaces 7, 8 are the largest. The printed circuit board 2 is of the solid type and in the form of a rectangular prism, the first main surface 7 and the second main surface 8 forming the bases of said rectangular prism.
    [0060] The first light guide 3 is arranged substantially parallel to the printed circuit board 2 and has a front surface 10, a rear surface 11, opposite the front surface 10, and side surfaces 12 which are arranged between the front surface 10 and the rear surface 11. The first light guide 3 comprises a rectangular prism-shaped geometry, where the front surface 10 and the rear surface 11 form the bases of said rectangular prism.
    [0062] The second light guide 4 is arranged substantially parallel to the printed circuit board 2 and has a front surface 13, a rear surface 14, opposite the front surface 13, and side surfaces 15 which are arranged between the front surface 13 and the rear surface 14. The second light guide 4 comprises a rectangular prism-shaped geometry, where the front surface 13 and the rear surface 14 form the bases of said rectangular prism.
    [0064] The first light emitter 5 is configured to direct the light emitted towards the lateral surface 12 of the first light guide 3 which is adjacent to the first light emitter 5, where the first light emitter 5 is arranged on the first main surface 7 of the printed circuit board 2.
    [0065] The second light emitter 6 is configured to direct the light emitted towards the lateral surface 15 of the second light guide 4 which is adjacent to the second light emitter 6, where the second light emitter 6 is arranged on the second main surface 8 of the printed circuit board 2.
    [0067] In this lighting system 1 the first light emitter 5 and the second light emitter 6 emit light in a direction parallel to the printed circuit board 2. The first light guide 3 is arranged at least partially overlapping the second light guide light 4 in the transverse direction to the lighting system 1, so that the rear surface 11 of the first light guide 3 faces the front surface 13 of the second light guide 4. Although only one first representation is shown in the figure light emitter 5 and a second light emitter 6, it is noteworthy that it would be possible to have several light emitters 5, 6 of each of the two previous types arranged sequentially in a straight line above the first main surface 7 and the second main surface 8 respectively.
    [0069] The fact that the first light emitter 5 and the second light emitter 6 are arranged on the opposite main surfaces 7, 8 of the printed circuit board 2 and the fact that the first light emitter 5 and the second emitter Light 6 emit light in a direction parallel to the PCB 2 allows to obtain a more compact lighting system 1 and, therefore, reduce the packaging required for it. In this way, the first light guide 3 and the second light guide 4 can be practically in contact with each other, minimizing the dimensions of the component in the transverse direction, so that the lighting system is suitable to be implemented in tight spaces.
    [0071] In this document, the indication that a printed circuit board and a light guide are arranged substantially parallel is equivalent to indicating that the main surfaces of the printed circuit board are substantially parallel to the front and rear surface of the guide of light.
    [0073] In this document, the indication that two light guides are arranged substantially parallel is equivalent to indicating that the front and rear surfaces of one light guide are substantially parallel to the front and rear surfaces of the other light guide.
    [0075] In this document, the indication that an address is parallel to a printed circuit board is equivalent to indicating that it is parallel to the main surfaces of the printed circuit board.
    [0076] In this document, the indication that a light emitter emits light in a direction parallel to the printed circuit board is equivalent to indicating that the vertex of the cone of light generated by the light emitter is parallel to any of the main surfaces of the printed circuit board.
    [0078] In this document, the direction perpendicular to the main surfaces of the printed circuit board (s) will be considered as the transverse direction to the lighting system.
    [0079] In order to define the different front and rear orientations, in the figures the first light guide 3 will be the one located on the front of the lighting system 1.
    [0081] In figure 2 a second embodiment of a lighting system 1 of the invention is represented.
    [0083] This lighting system 1 of figure 2 has as its main elements a printed circuit board (PCB) 2 that is substantially flat, a first light guide 3, a second light guide 4, a first light emitter 5 and a second light emitter 6. In figure 2 the first light guide 3 and the first light emitter 5 appear located to the left of the printed circuit board 2, although it would also be possible for both elements to be to the right of the printed circuit 2.
    [0085] The printed circuit board 2 has a first main surface 7, a second main surface 8, opposite the first main surface 7, and side edges 9 arranged between the first main surface 7 and the second main surface 8. Its main surfaces 7, 8 are the largest.
    [0087] The first light guide 3 is arranged substantially parallel to the printed circuit board 2 and has a front surface 10, a rear surface 11, opposite the front surface 10, and side surfaces 12 which are arranged between the front surface 10 and the back surface 11.
    [0089] The second light guide 4 is longitudinally aligned with the printed circuit board 2 and has a front surface 13, a rear surface 14, opposite the front surface 13, and side surfaces 15 that are arranged between the front surface 13 and the posterior surface 14.
    [0091] The first light emitter 5 is configured to direct the light emitted towards the lateral surface 12 of the first light guide 3 which is adjacent to the first light emitter 5 and is arranged on the first main surface 7 or on the second main surface 8 of the printed circuit board 2 (in figure 2, it is located on the first main surface 7). That is, there is at least partially an overlap in the transverse direction between the first main surface 7 of the printed circuit board 2 and the rear surface 11 of the first light guide 3.
    [0093] The second light emitter 6 is configured to direct the light emitted towards the lateral surface 15 of the second light guide 4, which is adjacent to the second light emitter 6 and is arranged on a lateral edge 9 of the printed circuit board 2 .
    [0095] In this lighting system 1 the first light emitter 5 and the second light emitter 6 emit light in a direction parallel to the printed circuit board 2. The first light guide 3 is arranged at least partially overlapping the second light guide light 4 in the transverse direction to the lighting system 1, so that the rear surface 11 of the first light guide 3 faces the front surface 13 of the second light guide 4.
    [0097] Although only a first light emitter 5 and a second light emitter 6 have been shown in the figure, it is noteworthy that it would be possible to have several light emitters 5, 6 of each of the two previous types.
    [0099] In this embodiment, the side surface 15 of the second light guide 4 may face the side edge 9 of the printed circuit board 2. Also, the second light emitter 6 could be at the end of the side edge 9. Furthermore, the second light guide 4 is adjacent to the printed circuit board 2, that is, the second light guide 4 is arranged as an extension of the printed circuit board 2.
    [0101] In both the first embodiment and the second embodiment, the first light guide 3 may be partially arranged adjacent to the first main surface 7 of the printed circuit board 2, that is, there may be at least partially an overlap between the first main surface 7 and the rear surface 11. Alternatively, the lateral surface 12 of the first light guide 3 is aligned with the lateral surface 15 of the second light guide 4 in the transverse direction.
    [0103] Figures 3 and 4 show a third embodiment of a lighting system 1 of the invention.
    [0104] This lighting system 1 of Figures 3 and 4 has as its main elements a printed circuit board (PCB) 2 that is substantially flat, a first light guide 3, a second light guide 4, a third light guide 16, a first light emitter 5, a second light emitter 6 and a third light emitter 20.
    [0105] The printed circuit board 2 has a first main surface 7, a second main surface 8, opposite the first main surface 7, and side edges 9 arranged between the first main surface 7 and the second main surface 8. Its main surfaces 7, 8 are the largest.
    [0107] The first light guide 3 is arranged substantially parallel to the printed circuit board 2 and has a front surface 10, a rear surface 11, opposite the front surface 10, and side surfaces 12 which are arranged between the front surface 10 and the back surface 11.
    [0109] The second light guide 4 is longitudinally aligned with the printed circuit board 2 and is substantially parallel to the first light guide 3, and has a front surface 13, a rear surface 14, opposite the front surface 13, and side surfaces 15 that are arranged between the front surface 13 and the rear surface 14.
    [0111] The third light guide 16 is arranged substantially parallel to the printed circuit board 2, the first light guide 3 and the second light guide 4, and has a front surface 17, a rear surface 18, opposite the front surface 17, and lateral surfaces 19 that are arranged between the front surface 17 and the rear surface 18. The third light guide 16 comprises a rectangular prism-shaped geometry, where the front surface 17 and the rear surface 18 form the bases of said rectangular prism.
    [0112] The first light emitter 5 is configured to direct the light emitted towards the lateral surface 12 of the first light guide 3, which is adjacent to the first light emitter 5 and is arranged on the first main surface 7 of the printed circuit board. 2.
    [0114] The second light emitter 6, not shown in FIG. 3, is configured to direct the light emitted towards the lateral surface 15 of the second light guide 4, which is adjacent to the second light emitter 6 and is arranged on a lateral edge. 9 of the printed circuit board 2.
    [0116] The third light emitter 20 is configured to direct the light emitted towards the lateral surface 19 of the third light guide 16 which is adjacent to the third light emitter 20 and is arranged on the second main surface 8 of the printed circuit board. 2.
    [0118] In this lighting system 1 the first light emitter 5, the second light emitter 6 and the third light emitter 20 emit light in a direction parallel to the printed circuit board 2. The first light guide 3 is arranged at least partially overlapping the second light guide 4 in a transverse direction to the lighting system 1, so that the surface The rear 11 of the first light guide 3 faces the front surface 13 of the second light guide 4. Also, the third light guide 16 is arranged at least partially overlapping the second light guide 4. The second guide of Light 4 is arranged between the first light guide and 3 the third light guide 16.
    [0120] Although only a first light emitter 5, a second light emitter 6 and a third light emitter 20 are shown in the figure, it is noteworthy that it would be possible to have several light emitters 5, 6, 20 of each of the two previous types. In the perspective view of figure 4, two second light emitters 6 are shown arranged aligned along the lateral edge 9 of the printed circuit board 2, both second light emitters 6 facing the lateral surface 15 of the second light guide 4.
    [0122] Additionally, when there are a plurality of first light emitters 5, a plurality of second light emitters 6 and a plurality of third light emitters 20, the second light emitters 6 are arranged interleaved with respect to the first light emitters 5 and the third light emitters 20. In this way, the light emitted by each of the light emitters does not interfere with the light emitted by the rest of the light emitters.
    [0124] According to an embodiment, the second light emitter 6 is arranged in a slot made in the lateral edge 9 of the printed circuit board 2. In this way, the second light emitter 6 is flush with said lateral edge 9, improving the packaging of the set. Likewise, the second light emitter 6 does not protrude with respect to the first main surface 7 and the second main surface 8 of the printed circuit board 2, preferably the second light emitter 6 being substantially flush with respect to the first main surface 7 and to the second main surface 8, reducing the dimensions of the set and avoiding deterioration during the assembly process of the lighting system 1.
    [0125] Figures 5 and 6 show a fourth embodiment of a lighting system 1 of the invention. This fourth embodiment is based on the configuration of the third embodiment and further comprises a second PCB 23 printed circuit board longitudinally aligned with the second light guide 4 following it and opposite the first printed circuit board 2. The second board PCB 23 has a first main surface 7 ', a second main surface 8', opposite the first main surface 7 ', and side edges 9' arranged between the first main surface 7 'and the second main surface 8'. Its main surfaces 7 ’, 8’ are those with the largest area.
    [0127] It also comprises a fourth light emitter 24 which is located on the first main surface 7 'of the second PCB 23 and configured to direct the light emitting to the first guide. light 3, a fifth light emitter 25 which is located on the second main surface 8 'of the second printed circuit board 23 and configured to direct the light emitting to the third light guide 16 and a sixth light emitter 26 which is located on one of the lateral edges of the second printed circuit board 23 that is oriented towards the second light guide 4 and configured to direct the light that it emits to the second light guide 4.
    [0129] This embodiment is useful when the light guides 3, 4, 16 are large, so that two light emitters or sets of light emitters are placed on each light guide 3, 4, 16.
    [0131] In the embodiments of the invention the front surface 10 of the first light guide 3 is configured to extract the light emitted by the at least one first light emitter 5, and the front surface 13 of the second light guide 4 is configured to extracting the light emitted by the at least one second light emitter 6. The same is the case with the front surface 17 of the third light guide 16, in the corresponding embodiments.
    [0133] In the above embodiments the light guides 3, 4, 16 are separated from each other by an air gap 21. For example, in Figure 1 this space 21 is located between the rear surface 11 of the first light guide 3 and the front surface 13 of the second light guide 4.
    [0135] Also the light guides 3, 4, 16 can comprise at least one protrusion, such that the at least one protrusion is configured to maintain the air gap 21 between the light guides 3, 4, 16.
    [0137] These projections may be ribs protruding from the light guides 3, 4, 16. The projections extend above the main surface of the respective light guide, preferably from the respective rear surface, in the transverse direction. Thus, the at least one protrusion is obtained from the same injection process of the respective light guide 3, 4, 16, so that no additional elements are required. The projection ensures that there is a medium change, in this case, an air gap 21 between the light guides 3, 4, 16, so that the light is transferred more efficiently through the interior of the respective light guide 3, 4, 16.
    [0139] The light guides 3, 4, 16 can also comprise a plurality of light extraction means 30 configured to direct the light to the front surface of the respective light guide. The plurality of light extraction means 30 of one light guide do not overlap with the plurality of light extraction means 30 of the other light guides, i.e. where the The first light guide 3 has light extraction means 30, the second light guide 4 does not have light extraction means 30, having as reference an overlap in the transverse direction.
    [0141] As can be seen in Figure 7, the plurality of light extraction means 30 may be cones or micro-cones preferably arranged on the rear surface 11 of the first light guide 3. Alternatively, the plurality of extraction means 30 Light can be prisms or engravings made on said rear surfaces 11. In this way, the light received by the lateral surface 12 of the first light guide 3 and transmitted by the first light guide 3 in the longitudinal direction, can be extracted of the light guide 3 by the front surface 10. Depending on the position and distribution of the plurality of light extraction means 30, the intensity, homogeneity, geometry ... of the light extracted may be modified.
    [0143] The lighting system 1 is especially applicable both inside and outside the vehicles.
    [0145] The lighting system 1 of the invention thus makes it possible to obtain different patterns on a flat surface without using sets of OLED or LCD-type screens. It allows you to create sequences or figures with a sense of movement, since the light emitters associated with a light guide are turned on, forming sequences independently of the light emitters associated with other light guides.
    [0147] Although some embodiments of the invention have been described and represented, it is evident that modifications within the scope thereof may be introduced therein, the latter not being considered limited to such embodiments, but only to the content of the following claims.
    [0149] List of numerical references:
    [0151] 1 lighting system
    [0152] 2 printed circuit board
    [0153] 3 first light guide
    [0154] 4 second light guide
    [0155] 5 first light emitter
    [0156] second light emitter first main surface first main surface second main surface second main surface side edge
    [0157] side edge
    [0158] front surface back surface side surface front surface back surface side surface
    [0159] third light guide front surface back surface side surface
    [0160] third light emitter air gap
    [0161] printed circuit board fourth light emitting fifth light emitting sixth light emitting light extraction means
    权利要求:
    Claims (1)
    [0001]
    1- Lighting system (1), comprising:
    - a substantially flat PCB printed circuit board (2), where the printed circuit board (2) comprises a first main surface (7), a second main surface (8), opposite the first main surface (7) and the minus a lateral edge (9) arranged between the first main surface (7) and the second main surface (8)
    - a first light guide (3) substantially flat, where the first light guide (3) is arranged substantially parallel to the printed circuit board (2), where the first light guide (3) comprises a front surface (10 ), a rear surface (11), opposite the front surface (10), and at least one side surface (12), arranged between the front surface (10) and the rear surface (11),
    - a second light guide (4) substantially flat, where the second light guide (4) is arranged substantially parallel to the printed circuit board (2) and substantially parallel to the first light guide (3), where the second light guide (4) comprises a front surface (13), a rear surface (14), opposite to the front surface (13), and at least one lateral surface (15), arranged between the front surface (13) and the back surface (14)
    - at least a first light emitter (5) configured to direct an emitted light towards a lateral surface (12) of the first light guide (3) adjacent to the at least a first light emitter (5),
    - at least a second light emitter (6) configured to direct an emitted light towards a lateral surface (15) of the second light guide (4) adjacent to the at least a second light emitter (6),
    the front orientation reference being the location of the first light guide (3) in the lighting system (1),
    characterized in that the at least one first light emitter (5) and the at least one second light emitter (6) emit light in a direction parallel to the printed circuit board (2), where the The first light guide (3) is arranged at least partially overlapping the second light guide (4) in a transverse direction to the lighting system (1), so that the rear surface (11) of the first light guide (3 ) is facing the front surface (13) of the second light guide (4).
    2- Lighting system (1), according to claim 1, wherein the front surface (10) of the first light guide (3) is configured to extract the light emitted by the at least one first light emitter (5), and where the front surface (13) of the second light guide (4) is configured to extract the light emitted by the at least one second light emitter (6).
    3- Lighting system (1), according to any of the preceding claims, where the at least one first light emitter (5) is arranged on the first main surface (7) of the printed circuit board (2) and where the at least a second light emitter (6) is arranged on the second main surface (8) of the printed circuit board (2).
    4- Lighting system (1), according to any of claims 1 or 2, where the at least one first light emitter (5) is arranged on the first main surface (7) of the printed circuit board (2) and where the at least one second light emitter (6) is arranged on one of the at least one lateral edge (9) of the printed circuit board (2).
    5- Lighting system (1) according to claim 4, where the lateral surface (15) of the second light guide (4) faces the lateral edge (9) of the printed circuit board (2).
    6- Lighting system (1) according to claim 3, 4 or 5, wherein the first light guide (3) is partially arranged adjacent to the first main surface (7) of the printed circuit board (2).
    7- Lighting system (1) according to claim 4, comprising a third light guide (16) substantially flat, where the third light guide (16) is arranged substantially parallel to the printed circuit board (2) and substantially parallel to the first light guide (3) and the second light guide (4), where the third light guide (16) comprises: a front surface (17), a rear surface (18), opposite the front surface (17), at least one lateral surface (19), arranged between the front surface (17) and the rear surface (18) where the lighting system (1) also comprises at least a third light emitter (20) configured to directing an emitted light towards the lateral surface (19) of the third light guide (16), where the third light emitter (20) is arranged on the second main surface (8) of the printed circuit board (2), and
    where the second light guide (4) is arranged between the first light guide (3) and the third light guide (16).
    8- Lighting system (1) according to any of the preceding claims, wherein the light guides are separated from each other by an air space (21).
    9- Lighting system (1) according to claim 8, wherein the light guides comprise at least one protrusion, such that the at least one protrusion is configured to maintain the air space (21) between the light guides.
    10- Lighting system (1) according to claim 9, wherein the at least one projection is a rib protruding from the light guide.
    11- Lighting system (1) according to any of the preceding claims, wherein the light guides comprise a plurality of light extraction means (30) configured to direct the light to the front surface of the respective light guide.
    12- Lighting system (1) according to claim 11, wherein the plurality of light extraction means (30) of a light guide do not overlap with the plurality of light extraction means (30) of the other light guides light.
    13- Lighting system (1) according to claim 11 or 12, wherein the plurality of light extraction means (30) are cones or micro-cones.
    14- Lighting system (1) according to any of claims 7 to 13, further comprising a second printed circuit board printed circuit board (23) longitudinally aligned with the second light guide (4) following it and opposite longitudinally to the first printed circuit board (2), so that each printed circuit board (2, 23) is on one end of the lighting system (1), also comprising a fourth light emitter (24) that is finds on the first main surface (7 ') of the second printed circuit board (23) and configured to direct the light that emits to the first light guide (3), a fifth light emitter that is on the second surface main (8 ') of the second printed circuit board (2) and configured to direct the light emitting to the third light guide (16) and a sixth light emitter (26) that is located on one of the lateral edges (9 ') of the second printed circuit board or (23) that is oriented towards the second light guide (4) and configured to direct the light emitting to the second light guide (4).
    15- Vehicle comprising a lighting system (1) according to any of claims 1 to 14.
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20150316227A1|2012-12-28|2015-11-05|3M Innovative Properties Company|Stacked lightguide tailight article|
    ES2645424A1|2017-02-23|2017-12-05|Seat, S.A.|Lighting device for a vehicle |
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