Lidar system

Abstract

A LIDAR system (10) comprises a laser device (15) designed to emit laser radiation (25) in the direction of an object (20), and a detector device (16) designed to detect radiation (26) reflected by the object (20). The LIDAR system (10) also comprises a luminous film (17) which comprises a light-permeable material (114, 115) in which a plurality of light-emitting elements (112) are embedded, as well as conductor tracks (109) which are arranged in or on the luminous film (17) for electrically connecting the light-emitting elements (112). The luminous film (17) is arranged between the laser device (15) and the object (20), and a first region (117) of the luminous film (17) corresponds to an irradiation region of the laser radiation (25) or the reflected laser radiation (26). A second region (118) corresponds to a region through which laser radiation (25) or the reflected laser radiation (26) substantially does not pass.

Description

[0001] LiDAR system

[0002] DESCRIPTION

[0003] LiDAR (Light Detection and Ranging) systems are used in a variety of applications, such as distance measurement or mapping a vehicle's surroundings. Efforts are generally underway to provide improved LiDAR systems.

[0004] The present invention is based on the objective of providing an improved LIDAR system.

[0005] According to the implementation guidelines, the task is defined by the subject matter of the independent patent claims. Further developments are defined in the dependent claims.

[0006] A LIDAR system comprises a laser device configured to emit laser radiation toward an object and a detector device configured to detect radiation reflected from the object. The LIDAR system further comprises a light-emitting film, which is a transparent material in which a plurality of light-emitting elements are embedded, and which has conductive traces arranged in or on the light-emitting film for electrically connecting the light-emitting elements. The light-emitting film is positioned between the laser device and the object, and a first region of the light-emitting film corresponds to a transmission region of the laser radiation or the reflected laser radiation. A second region corresponds to a region that is substantially not penetrated by the laser radiation or the reflected laser radiation. 2024P00694WG 2

[0007] For example, the distance between adjacent conductor tracks is greater in the first area than in the second area.

[0008] According to the design, the width of the conductor tracks in the first area is smaller than in the second area, with the width being measured in a direction parallel to a propagation direction of the luminescent film.

[0009] The LIDAR system can further comprise a filter layer between the laser device and the luminescent film or between the detector device and the luminescent film, wherein the filter layer is configured to filter electromagnetic radiation in a wavelength range that has been emitted by the light-emitting elements adjacent to the horizontal position of the filter layer.

[0010] The LIDAR system can further include a lens between the laser device and the light-emitting film. For example, the lens may be a Fresnel lens.

[0011] According to the design specifications, the light-emitting elements are designed as LEDs.

[0012] The LIDAR system can also have a first reflective layer applied to the side walls of the LEDs.

[0013] According to further embodiments, the LIDAR system can have a second mirror layer applied to one side of the LEDs facing the laser device.

[0014] For example, the LEDs are applied to a carrier film, and the second reflective layer is applied to the side of the carrier film facing away from the LEDs. 2024P00694WG 3

[0015] The LIDAR system can further include a first absorbing layer designed to reduce reflection of electromagnetic radiation emitted by the laser device, wherein the first absorbing layer is applied to sidewalls of the LEDs.

[0016] According to further embodiments, the LIDAR system further comprises a second absorbing layer which is designed to reduce reflection of electromagnetic radiation emitted by the laser device, wherein the second absorbing layer is applied to a side of the LEDs facing the laser device.

[0017] Depending on the design, the luminescent film can also have resistive heating elements. For example, the resistive heating elements can be arranged in the second area.

[0018] According to the design specifications, the laser device can be configured to emit laser radiation in a wavelength range that differs from the wavelength range emitted by the light-emitting elements.

[0019] For example, the laser device can be set up to emit laser radiation in the IR range.

[0020] The accompanying drawings serve to illustrate exemplary embodiments of the invention. The drawings depict these embodiments and, together with the description, explain them. Further exemplary embodiments and many of the intended advantages will become apparent from the detailed description below. The elements and structures shown in the drawings are not necessarily drawn to scale. (Same reference numerals: 2024P00694WQ 4)

[0021] refer to identical or corresponding elements and structures.

[0022] Fig. 1 shows a schematic view of a LIDAR system according to implementation forms.

[0023] Fig. 2A shows a horizontal cross-sectional view to illustrate arrangements of conductor tracks.

[0024] Fig. 2B shows another horizontal cross-sectional view to illustrate arrangements of conductor tracks and heating elements.

[0025] Fig. 2C shows another view illustrating heating elements.

[0026] Fig. 3 shows a vertical cross-sectional view to illustrate further elements of the LIDAR system.

[0027] Figures 4A to 4C are vertical cross-sectional views to illustrate further features of the luminescent film according to embodiments.

[0028] Figures 5A to 5C are vertical cross-sectional views to illustrate further features of the luminescent film according to embodiments.

[0029] Fig. 6 shows another view of the LIDAR system according to embodiments .

[0030] The following detailed description refers to the accompanying drawings, which form part of the disclosure and show specific embodiments for illustrative purposes. In this context, directional terminology such as "top," "bottom," "front," "back," "over," "on," "in front," "behind," "front," "back," etc., refers to the orientation of the figures just described. Since the components of the embodiments can be positioned in different orientations, the directional terminology serves only for explanation and is in no way restrictive.

[0031] The description of the embodiments is not restrictive, as other embodiments exist and structural or logical modifications can be made without deviating from the scope defined by the claims. In particular, elements of the embodiments described below can be combined with elements of other described embodiments, unless otherwise indicated by the context.

[0032] The term "vertical," as used in this description, is intended to describe an orientation that is essentially perpendicular to the first surface of a substrate or layer structure. The vertical direction can, for example, correspond to a stacking direction when applying layers.

[0033] The terms "lateral" and "horizontal," as used in this description, are intended to describe an orientation or alignment that is essentially parallel to a first surface of a substrate or of layers in a layered structure. This could be, for example, the surface of a wafer or a chip (die).

[0034] The horizontal direction can, for example, lie in a plane perpendicular to a stacking direction when applying layers. Fig. 1 shows a schematic view of a LIDAR system 10 according to embodiments. The LIDAR system 10 comprises a laser device 15 configured to emit laser radiation 25 in the direction of an object 20, and a detector device 16 configured to detect radiation 26 reflected from the object 20. The LIDAR system 10 further comprises a light-emitting film 17, which includes a translucent material in which a plurality of light-emitting elements 112 are embedded, and conductive traces 109 arranged in or on the light-emitting film 17 for the electrical connection of the light-emitting elements 112. The light-emitting film 17 is arranged between the laser device 15 and the object 20.A first area 117 of the luminescent film 17 corresponds to a transmission area of ​​the laser radiation 25 or the reflected laser radiation 26. A second area 118 corresponds to an area that is not irradiated by laser radiation 25 or the reflected radiation 26.

[0035] For example, the laser device 15 can be part of an emitter unit 100. Similarly, the detector device 16 can be part of a detector unit 102. As shown in Fig. 1, the emitter unit 100 and the detector unit 102 can be spatially separated from each other, for example along a direction that intersects an emission direction of the laser radiation 25, for example a horizontal direction. According to further embodiments, the emitter unit 100 and the detector unit 102 can also be connected or integrated together. For example, the detector device 16 can be arranged downstream of the laser device 15 when viewed in the emission direction and can, for example, be configured to detect an SMI (“Self-Mixing Interference”) signal. Furthermore, the detector device 16 can also be configured as a measuring device that, for example, detects a 2024P00694WG 7

[0036] A voltage drop within the laser device 15 is detected. Accordingly, the combination of measuring device and laser device can be configured to detect a superposition signal of emitted laser radiation 25 and reflected radiation 26.

[0037] The emitter unit 100 and the detector unit 102 can further include additional components for controlling the emitted radiation, for example, for generating pulsed radiation. Furthermore, the detector unit 102 can include components for evaluating detected signals. For example, the detector unit 102 can be configured to determine the distance or velocity of object 20 from a detected signal. This determination can be based, for example, on evaluating the time of flight (TOE) to object 20. According to other embodiments, the emitter unit 100 can be configured to effect frequency modulation of the emitted laser radiation 25. Accordingly, the LIDAR system 10 can be implemented as an FMCW LIDAR system (frequency modulated continuous wave). The laser device 15 can be implemented in any way, for example, as a semiconductor laser or another type of laser.The laser device 15 can be configured to emit laser radiation in the infrared range, for example with a wavelength greater than 800 nm or 850 nm.

[0038] The light-emitting film 17 can, for example, have a substrate 114. The substrate can be made of a translucent material and may include, for example, PET (polyethylene terephthalate), high-density polyethylene (HDPE), polypropylene (PP), polyimide (PI), or another engineering plastic such as cyclo-olefin in-polymer or polyamide. The light-emitting elements can, for example, be implemented as LEDs (light-emitting diodes) 112. For example, the individual light-emitting elements can be arranged on a surface of the substrate 114. The substrate 114 can be implemented as a flexible film and have a thickness of less than 200 pm, less than 150 pm, or less than 100 pm.

[0039] A protective layer 115 can be arranged over the substrate 114. For example, the protective layer 115 can embed the individual light-emitting elements. The material of the protective layer 115 can also comprise PET or another engineering plastic, such as cyclo-olefin polymer or polyamide. For example, the protective layer 115 can be bonded to the substrate 114 via an adhesive layer. For example, the adhesive layer can enclose the light-emitting elements 112. The adhesive layer can be based on, for example, silicone, epoxy resin, or acrylic adhesive. As a result, the individual light-emitting elements are embedded and sealed by the adhesive layer and the protective layer 115. For example, a surface of the light-emitting elements is not exposed but is covered and sealed by the translucent material of the protective layer 115.The protective layer 115 can be implemented as a flexible film and have a layer thickness of less than 200 pm or less than 150 pm or less than 100 pm.

[0040] Overall, the luminescent film 17 is flexible. The combination of carrier 114 and substrate 115 can, for example, have a layer thickness of less than 500 pm or less than 300 pm. When using very thin films, the total thickness of the combination can be less than 150 pm. The total thickness of the luminescent film 17 with the addition of the second cover element 116 can also be greater and amount to several millimeters, since the second cover element 116 can, for example, be designed as a cover disc and can therefore have a greater thickness. 2024P00694WG 9

[0041] The light-emitting elements can be implemented as p-LEDs, i.e., LEDs with a lateral size in the range of 1 pm, for example, larger than 0.5 pm. The lateral size of LEDs 112 can be smaller than 1.5 pm. Depending on the application, however, the p-LEDs can also be significantly larger. For example, according to further embodiments, the edge length can be greater than 20 pm or even greater than 70 pm. The p-LEDs can each have any desired shape of emission surface, for example, a rectangular or other shaped emission surface. In a top view of the light-emitting element, each lateral extent of the emission surface can be, for example, at most 5 pm or at most 3 pm. According to further embodiments, however, each lateral extent of the emission surface can also be greater than 10 pm, 40 pm, or 100 pm. Examples of radiative emission surface sizes include 40 x 80 pm2 , 100 to 150 pm2 or even 0.5 mm 2 .

[0042] The individual light-emitting elements can be configured to emit electromagnetic radiation of, for example, different colors. For example, a first group of light-emitting elements 112 can be configured to emit electromagnetic radiation 30 in a first wavelength range of a first color, for example, red. Light-emitting elements of a second group can be configured to emit electromagnetic radiation 31 in a second wavelength range of a second color, for example, yellow.

[0043] The individual light-emitting elements can be controlled by conductor tracks 109. For example, a network (mesh) or grid of thin wires, for example made of copper, can be provided through which the conductor tracks 109 2024P00694WG 10

[0044] This will be implemented. This will be explained in more detail with reference to Figures 2A to 2C.

[0045] A second cover element 116 can be arranged over the protective layer 115. For example, the luminescent film 17 can be connected to a first cover element 110, which is arranged above the assembly with the emitter unit 100 and the detector unit 102, via a suitable adhesive layer 113. For example, the adhesive layer 113 (OCA, "optical clear adhesive"), which can comprise materials such as silicone, acrylic adhesive, or epoxy resin adhesive, can be a self-curing or UV-curing adhesive. According to further embodiments, the luminescent film 17 can also be laminated directly onto the first cover element 110. According to further embodiments, the luminescent film can also be arranged at a spatial distance from the first cover element 110 without being connected to it.

[0046] The first cover element 110 can, for example, additionally have filter layers 111, as will be explained below. For example, the filter layers 111 can be applied as additional layers on the first cover element 110. For example, the first cover element 110 and the second cover element 116 can be made of PMMA (polymethyl methacrylate) or polycarbonate. Furthermore, a first lens 105 can be arranged on the side of the cover element 110 facing the laser device 15. Additionally, a second lens 107 can be arranged on the side of the first cover element 110 facing the detector device 16. The use of the lens allows for improved focusing of the emitted laser radiation as well as the reflected radiation 26. 2024P00694WG 11

[0047] For example, the individual light-emitting elements 112 of the light-emitting film 17 can be individually controlled. According to further embodiments, only segments from a group of individual light-emitting elements 112 can also be controlled. The brightness of the light segments or individual light-emitting elements can also be controlled. This makes it possible, for example, to implement animated logo lighting or rear light / grill lighting applications.

[0048] In the LIDAR system 10 shown in Fig. 1, the laser device 15 and the detector device 16 are arranged behind a brightly luminous film 17 – ideally, a bright one – so that the relevant components of the LIDAR system are “hidden” behind a highly luminous film. As a result, a compact LIDAR system can be provided that functions as a sensor device and additionally as a display device, a communication device, or even as a GUI (graphical user interface).

[0049] For example, a range of emission wavelengths emitted by the light-emitting elements 112 may differ from the wavelength range emitted by the laser device 15. The term "different" in this context means that the wavelength range emitted by the light-emitting elements 112 does not completely overlap with the wavelength range emitted by the laser device 15. For example, a wavelength range emitted by the laser device 15 includes a subrange that is not contained within the wavelength range emitted by the light-emitting elements 112. For example, the light-emitting elements 112 may be configured to emit light in the visible wavelength range, while the laser device 15 is configured to emit electromagnetic radiation in the IR range, for example, with a wavelength greater than 850 nm.For example, the IR range may slightly overlap with the range emitted by the light-emitting elements 112. Furthermore, the IR range also has a sub-range that is not emitted by the light-emitting elements 112.

[0050] Fig. 2A shows a horizontal cross-sectional view through a region of the luminescent film 17, for example, in the region of the carrier 114 or in the region of the protective layer 115. The right part of Fig. 2A shows a cross-sectional view through the first region of the luminescent film 117, while the left part of Fig. 2A shows a cross-sectional view through the second region of the luminescent film 118. The first region of the luminescent film corresponds to a transmission area of ​​the laser radiation 25 or the reflected laser radiation 26. The second region 118 corresponds to a region that is substantially not penetrated by laser radiation or the reflected laser radiation. The feature, "the region is substantially not penetrated by laser radiation or the reflected laser radiation," means that only a very small fraction of the emitted laser radiation (for example, less than 1%) penetrates this region.In particular, area 118 is located outside a connecting line between the laser device 15 and the object 20 and outside the connecting line between the object 20 and the detector device 16.

[0051] The cross-sectional view of Fig. 2A shows the light-emitting elements 112, which are controlled by the individual conductor tracks 109. As shown in Fig. 2A, in the first region 117, the distance between adjacent conductor tracks 109 d is greater than in the second region 118. For example, in the first region 117, the distance between adjacent conductor tracks 109 can be greater than 100 pm, for example, more than 200 pm. The distance can be less than 300 pm. The width of the conductor tracks 109 can be less than 10 pm. In the second region 118, the distance b between adjacent conductor tracks can be less than in the first region 117. For example, the distance can be less than 150 pm, for example, more than 100 pm. A width a of the individual conductor tracks can be, for example, more than 5 pm, for example, more than 7 pm. Furthermore, as shown in the left part of Fig.As shown in 2A, the conductor tracks can also be planar, meaning they have a width of more than 40 pm or more than 80 pm, for example more than 100 pm.

[0052] For example, the light-emitting film 17 can be designed such that the fill level with conductive traces 109 and light-emitting elements 112 in the first area is less than 20% or less than 10%. According to further embodiments, the conductive traces 109 in the first area can also be made of a transparent, electrically conductive material, for example, a conductive transparent metal oxide such as ITO (indium tin oxide). For example, the first cover element 110 can have a color that is adapted to the respective requirements (rear light, turn signal, vehicle color, etc.) by the LIDAR system 10. The first cover element 110 can be transparent.

[0053] Fig. 2B shows a horizontal cross-sectional view through the luminescent film 17, for example in the area of ​​the carrier 114 or the protective layer 115 according to further embodiments. In addition to elements shown with reference to Fig. 1 or 2A 2024P00694WQ 14

[0054] As previously explained, the luminescent film 17 further comprises a resistive heating element 119. For example, the heating element 119 can be implemented as a filled conductor track. In this way, for example, fogging of the LIDAR system 10 can be avoided. According to embodiments shown in the right part of Fig. 2B, the heating element 119 can also be implemented by unfilled conductor tracks 109. For example, the heating element 119 can be arranged in the second area.

[0055] Fig. 2C shows an embodiment of a light-emitting film 17 with conductive traces 109 and heating elements 119. According to some embodiments, the conductive traces 109 and the heating elements 119 can be arranged in the same plane. This simplifies the manufacturing of the conductive traces 109 and the heating elements 119. According to other embodiments, the conductive traces 109 and the heating elements 119 can also be arranged in different planes.

[0056] Fig. 3 shows a cross-sectional view of the light-emitting film 17 according to further embodiments. As shown in Fig. 3, the light-emitting elements have a first group of LEDs 123 and a second group of LEDs 124. The first group 123 of LEDs emits in a wavelength range that differs from the wavelength range emitted by the second group 124 of LEDs. For example, the first cover element 110 can have filter layers 111. More precisely, the first cover element 110 can have a first filter area 121 and a second filter area 122. The first filter area 121 is configured to absorb or reflect electromagnetic radiation 30 emitted by the first group 123 of LEDs. Similarly, the second filter area 122 is configured to absorb electromagnetic radiation 31 emitted by the second group 124.

[0057] second group 124 emitted by LEDs, to absorb or reflect.

[0058] For example, the first and / or the second filter region 121, 122 can be implemented as a Bragg mirror with a plurality of thin dielectric layers with corresponding refractive indices. The first and / or the second filter region 121, 122 can also be transparent to the laser radiation 25 and / or the reflected radiation 26, for example in the IR range. In this way, a negative influence on components of the laser device 15 or the detector device 16 by the adjacent light-emitting elements of the luminescent film 17 is avoided. The other elements of Fig. 3 correspond to those described with reference to Fig. 1.

[0059] The individual LEDs 112 can be designed such that electromagnetic radiation is emitted only in the forward direction. This prevents the LEDs 112 from emitting directly towards the detector device 16. For example, as shown in Fig. 4A, a first reflective layer 125 can be applied to the side walls of the LEDs 112.

[0060] According to further embodiments, as shown in Fig. 4B, a second mirror layer 126 can additionally or alternatively be arranged on one side of the LEDs 112 facing the laser device 15. Furthermore, the second mirror layer can additionally or alternatively be arranged on one side of the carrier 114 facing away from the LEDs 112. This is illustrated in Fig. 4G. 2024P00694WG 16

[0061] For example, the mirror layers 125, 126 can be implemented as Bragg mirrors. Additionally or alternatively, absorbing layers can be provided.

[0062] Fig. 5A shows an example in which a first absorbing layer 127 is applied to sidewalls of the LEDs 112. The first absorbing layer 127 can be configured to reduce reflection of electromagnetic radiation emitted by the laser device. For example, the first absorbing layer can be arranged on a side of the first reflective layer facing away from the LED.

[0063] According to further embodiments (Fig. 5B), the light-emitting film 17 can have a second absorbing layer 128 arranged between the LED 112 and the laser device 15. For example, the second absorbing layer 128 can be arranged on a side of the second mirror layer 126 facing away from the LED 112. According to further embodiments, the second mirror layer 126 can also be omitted in this configuration.

[0064] According to embodiments shown in Fig. 5C, the second absorbing layer 128 can be arranged on a side of the support 114 facing away from the LED 112. If a second mirror layer 126 is also provided, the second absorbing layer 128 can be arranged on a side of the second mirror layer facing away from the support 114. Examples of materials for the absorbing layer include: absorbing coatings containing, for example, carbon nanotubes (CNTs), materials incorporating carbon black particles, or nanoscale lanthanum hydroxyaboride (LaB6). Fig. 6 shows a LIDAR system 10 according to further embodiments, in which, in addition to elements shown in Fig. 1, the first and second lenses 105, 107j are each configured as Fresnel lenses 108. This allows for a more compact form. For example, the Fresnel lens 108 can be embossed into the first cover element 110.For example, the first cover element can be made of PMMA (polymethyl methacrylate), polyvinyl chloride (PVC), high-density polyethylene (HDPE), or PC (polycarbonate). High-density polyethylene can be very suitable for IR Fresnel lenses, for example. Furthermore, an integrated bandpass filter for visible light can be incorporated into the first cover element 110. Other elements of the LIDAR system of Fig. 6 are similar to those shown in Fig.

[0065] 1 described.

[0066] Although specific embodiments have been illustrated and described herein, those skilled in the art will recognize that the specific embodiments shown and described can be replaced by a multitude of alternative and / or equivalent embodiments without departing from the scope of protection of the invention. The application is intended to cover any adaptations or variations of the specific embodiments discussed herein. Therefore, the invention is limited only by the claims and their equivalents. [List of references]

[0067] LiDAR system

[0068] Laser device Detector device

[0069] Luminous foil

[0070] Ob j ekt

[0071] Laser radiation

[0072] reflected radiation

[0073] , 31 electromagnetic radiation

[0074] 0 emitter unit

[0075] 2 detector units

[0076] 5 first lens

[0077] 7 second lens

[0078] 8 Fresnel lens

[0079] 9 conductor track

[0080] 0 first cover element

[0081] 1 Eil ter schicht

[0082] 2 LED

[0083] 3-shift prison

[0084] 4 carrier film

[0085] 5 protective layer

[0086] 6 second cover element

[0087] 7 First area of ​​the light-emitting film 8 Second area of ​​the light-emitting film 9 Heating element

[0088] 1. First filter area

[0089] 2 second filter area

[0090] 3 first group of LEDs

[0091] 4 second group of LEDs

[0092] 5 first mirror layer

[0093] 6 second mirror layer

[0094] 7 first absorbing layer

[0095] 8 second absorbing layer

Claims

1. CLAIMS 2.1 . LIDAR system ( 10 ) with :

3. a laser device ( 15 ) which is configured to emit laser radiation ( 25 ) in the direction of an object ( 20 ); 4. a detector device ( 16 ) which is configured to detect radiation ( 26 ) reflected from the object ( 20 ), and 5. a flexible luminescent film (17) with a thickness of less than 500 gm, wherein the flexible luminescent film (17) comprises a translucent material (114, 115) in which a plurality of light-emitting elements (112) are embedded, further comprising conductive traces (109) arranged in or on the luminescent film (17) for electrical connection of the light-emitting elements (112), 6. wherein the luminescent film ( 17 ) is arranged between the laser device ( 15 ) and the object ( 20 ) and a first region ( 117 ) of the luminescent film ( 17 ) corresponds to a transmission region of the laser radiation ( 25 ) or the reflected laser radiation ( 26 ), and a second region ( 118 ) corresponds to a region which is substantially not irradiated by the laser radiation ( 25 ) or the reflected laser radiation ( 26 ). 7.

2. LIDAR system ( 10 ) according to claim 1 , wherein the distance between adjacent conductor tracks ( 109 ) in the first region ( 117 ) is greater than in the second region ( 118 ). 8.

3. LIDAR system (10) according to claim 1 or 2, wherein the width of the conductor tracks (109) in the first region (117) is smaller than in the second region (118), the width being measured in a direction parallel to a propagation direction of the luminescent film (17).

4. LIDAR system (10) according to one of the preceding claims, further comprising a filter layer (111) between the laser device (15) and the luminescent film (17) or between the detector device (16) and the luminescent film (17), wherein the filter layer (111) is configured to filter electromagnetic radiation (30, 31) in a wavelength range which has been emitted by the light-emitting elements (112) adjacent to the horizontal position of the filter layer (111). 9.

5. LIDAR system ( 10 ) according to one of the preceding claims, further comprising a lens ( 105 ) between the laser device ( 15 ) and the light-emitting film ( 17 ). 10.

6. LIDAR system ( 10 ) according to claim 5 , wherein the lens ( 105 ) comprises a Fresnel lens ( 108 ). 11.

7. LIDAR system ( 10 ) according to one of the preceding claims , wherein the light-emitting elements are designed as LEDs ( 112 ). 12.

8. LIDAR system ( 10 ) according to claim 7, further comprising a first mirror layer ( 125 ) applied to side walls of the LEDs ( 112 ). 13.

9. LIDAR system according to claim 7 or 8, further comprising a second mirror layer ( 126 ) applied to one side of the LEDs ( 112 ) facing the laser device ( 15 ). 14.

10. LIDAR system (10) according to claim 9, wherein the LEDs (112) are applied to a carrier film (114) and the second reflective layer (126) is applied to a side of the carrier film (114) facing away from the LEDs (112).

11. LIDAR system (10) according to any one of claims 7 to 10, further comprising a first absorbing layer (127) configured to reduce reflection of electromagnetic radiation emitted by the laser device (15), wherein the first absorbing layer (127) is applied to sidewalls of the LEDs (112). 15.

12. LIDAR system (10) according to one of claims 7 to 11, further comprising a second absorbing layer (128) configured to reduce reflection of electromagnetic radiation emitted by the laser device (15), wherein the second absorbing layer (128) is applied to a side of the LEDs (112) facing the laser device (15). 16.

13. LIDAR system ( 10 ) according to one of the preceding claims, wherein the light-emitting film ( 17 ) further comprises resistive heating elements ( 119 ). 17.

14. LIDAR system ( 10 ) according to claim 13 , wherein the resistive heating elements ( 119 ) are arranged in the second region ( 118 ) of the luminescent film ( 17 ). 18.

15. LIDAR system ( 10 ) according to one of the preceding claims, wherein the laser device ( 15 ) is configured to emit laser radiation ( 25 ) in a wavelength range different from a wavelength range emitted by the light-emitting elements ( 112 ). 19.

16. LIDAR system ( 10 ) according to claim 15 , wherein the laser device ( 15 ) is configured to emit laser radiation ( 15 ) in the IR range .

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