Lighting system
The retaining element designed as a sealing element and the elastic locking structure solve the problem of diversified sealing devices in the motor vehicle lighting system, thereby achieving reliable sealing of the optical fiber and reducing costs.
Patent Information
- Application Number
- CN202411943176.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-03-07
- Filing Date
- 2024-12-27
- Publication Date
- 2025-09-09
AI Technical Summary
In the prior art, sealing of electronic and optical components of automotive lighting systems requires reliance on sealing devices at multiple locations, resulting in increased construction expense and cost.
The retaining element is designed as a sealing element, extends along the longitudinal direction and tapers gradually, and is used to seal the connection between the light conductor and the lighting device to prevent particles and fluid from penetrating, and ensures stable fixation of the light conductor through elastic material and locking structure.
The invention realizes reliable sealing of the optical conductor, reduces dependence on sealing elements of the motor vehicle headlamp housing, reduces construction expenses and costs, and simultaneously keeps the optical conductor in a designated position to prevent contamination.
Smart Images
Figure CN120609038A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a lighting system, comprising:
[0002] an illumination mechanism for generating and radiating light along a main radiation direction;
[0003] a light guide, which is assigned to the lighting device, wherein the light guide has an end with a light coupling-in surface, wherein light from the lighting device can be coupled into the light guide via the light coupling-in surface, wherein side surfaces of the light guide that delimit the light guide extend from the light coupling-in surface along the longitudinal extension of the light guide, wherein the light guide, in particular its side surfaces, has a light coupling-out portion, via which the coupled-in light is coupled out of the light guide;
[0004] A holding device is provided for holding an illuminating device and an optical waveguide relative to one another and for sealing the end portion and the illuminating device, preferably against environmental influences, external influences and / or contamination, wherein the holding device comprises a back side and a front side facing away from the back side, wherein a first receptacle is formed on the back side, in which the illuminating device is accommodated, wherein a second receptacle is formed on the front side, in which the optical waveguide is accommodated, wherein the first receptacle and the second receptacle are designed such that light emitted by the illuminating device accommodated in the first receptacle is radiated onto a light coupling-in surface of the optical waveguide accommodated in the second receptacle,
[0005] wherein the second receptacle comprises a holding element having a shape corresponding to the optical waveguide, preferably corresponding to the end of the optical waveguide, wherein the holding element has a longitudinal extension which extends from a front side of the holding device and ends at an insertion opening of the holding element, wherein the longitudinal extension of the holding element is shorter than the longitudinal extension of the optical waveguide, wherein, in order to accommodate the optical waveguide in the second receptacle, the end can be inserted into the insertion opening of the holding element along an insertion direction, the insertion direction being oriented in particular along the main radiation direction, wherein the holding device comprises a blocking means which blocks the insertion of the light-conducting element beyond an end position along the insertion direction, wherein, in the inserted state, the holding element at least partially, preferably completely, surrounds a part of the optical waveguide on the circumferential side, wherein that part of the side surface of the optical waveguide which is surrounded by the holding element defines a holding portion of the optical waveguide, at which holding portion an inner surface of the holding element lies opposite the side surface of the optical waveguide, wherein, in the inserted state, the light coupling-out portion is arranged on a side of the insertion opening facing away from the illumination device, in particular outside the holding element.
[0006] The invention further relates to a motor vehicle or a lamp for a motor vehicle, comprising a lighting system.
[0007] The invention further relates to a vehicle assembly for a motor vehicle, comprising a lighting system. Background Art
[0008] Such lighting systems are known in the prior art, particularly for use in motor vehicles. In such lighting systems, the electronic and / or optical components of the lighting system need to be protected from external influences, such as environmental influences. This is typically achieved using sealing elements. In known solutions, the housing housing the electronic and optical components is typically sealed at multiple locations. Typically, the housing is sealed using separate sealing devices on the back side, where the electronic components are secured, and on the front side, where the optical components are secured. This increases the design complexity and costs. Summary of the Invention
[0009] The object of the present invention is to alleviate or eliminate the disadvantages of the prior art. Therefore, the present invention has as its object, in particular, to provide a lighting system in which reliable sealing of the electronic and optical components of the lighting system is achieved by simple means.
[0010] This object is achieved by a lighting system having the features of claim 1 and, alternatively, by a lighting system having the features of claim 12. Preferred embodiments are described in the dependent claims.
[0011] According to the present invention, the retaining element is designed as a sealing element, which gradually tapers along the longitudinal extension toward the insertion opening, so that the inner surface of the retaining portion of the retaining element facing the optical conductor is in sealing contact with the side of the retaining portion, wherein, by this sealing contact, particles and / or fluids are prevented from penetrating through the insertion opening from the front side of the retaining device toward the back side of the retaining device, in particular toward the lighting device.
[0012] This results in the following advantages: the retaining element, by enclosing the retaining portion, holds the optical waveguide in a defined position relative to the lighting element and simultaneously seals the connection between the lighting element and the optical waveguide, or the region of the lighting element opposite the optical waveguide, from contamination. Thus, since the lighting system is independent of sealing elements of a motor vehicle headlight housing, the lighting system can also be used, for example, outside the motor vehicle headlight housing to illuminate components of the motor vehicle.
[0013] It can be provided that the end of the light guide is closer to the lighting device than the holder of the light guide.
[0014] It can be provided that the first receptacle and the second receptacle comprise a first material, and the retaining element comprises a second material, wherein the second material has a higher elasticity than the first material, wherein the optical waveguide has a first diameter and the insertion opening has a second diameter, the second diameter being smaller than the first diameter, wherein the diameter difference and the elasticity of the second material are selected such that the end of the optical waveguide can be inserted into the insertion opening and the insertion opening widens during the insertion due to the elasticity, and after the insertion, the inner surface of the retaining element forms a sealing contact with the retaining portion of the optical waveguide.
[0015] It can be provided that a locking element, such as a locking lug or a locking groove, is formed at the end of the optical waveguide, and a locking counterpart element of complementary design to the locking element is formed at the second receptacle, wherein the locking element and the locking counterpart element are configured to form a locking connection, wherein the locking connection locks when the optical waveguide reaches an end position in the retaining element, thereby blocking the optical waveguide from being moved out of the retaining element, in particular in the main radiation direction, wherein in this end position the light coupling-in surface is at a specified distance from the lighting device.
[0016] It can be provided that the holding element interacts with the second receptacle in such a way that a movement of the light guide is blocked in a plane oriented perpendicularly to the longitudinal extension of the light guide.
[0017] It can be provided that the holding element has a through-hole, wherein the holding device has at least one through-hole extending from the front side to the rear side, wherein the through-hole penetrates the through-hole from the front side to the rear side.
[0018] It can be provided that the lighting device comprises a lighting device carrier on which at least one light source of the lighting device is arranged, wherein a further sealing element is formed on the rear side of the holding device and is provided for forming a sealing contact between the first receptacle and the lighting device carrier.
[0019] It can be provided that the holding element, the passage and the further sealing element formed on the rear side of the holding device are formed integrally, wherein preferably the blocking means is formed on the lighting means carrier.
[0020] It can be provided that the holding element comprises a sleeve, in particular a spring sleeve, which surrounds the end of the light conductor and the holder.
[0021] It can be provided that the retaining device comprises a first material, for example a plastic, in particular a thermoplastic or a thermosetting plastic, and that the retaining element comprises a second material different from the first material, for example an elastomer, wherein the second material is more elastic than the first material, wherein the retaining element penetrates the retaining device, wherein in particular the retaining element and the retaining device form a 2K component.
[0022] It can be provided that the optical waveguide comprises a light guide, preferably a transparent light guide, such as an optical fiber or a light guide with a circular cross section, wherein light preferably propagates through the optical waveguide along its longitudinal extent by means of total internal reflection at the side surfaces.
[0023] According to an alternative solution of the invention, the holding device has a sealing sleeve, which has a shape corresponding to the optical waveguide and the holding element, wherein the sealing sleeve surrounds the holding element and the optical waveguide protruding therefrom in a form-fitting manner on the circumferential side, wherein the holding portion and the insertion opening are sealed by this surrounding.
[0024] It may be provided that the sealing sleeve is designed as a substantially cylindrical shrink tube. Preferably, after the shrink tube has been pulled over the holding element and the light conductor, the shrink tube is subjected to a heat treatment (in particular, heating), whereby the diameter of the shrink tube is reduced and a close-fitting or sealing contact is established with the holding element and the light conductor.
[0025] According to another aspect of the present invention, a lamp for a motor vehicle or a motor vehicle is provided, the lamp or the motor vehicle comprising a lighting system.
[0026] According to another aspect of the invention, a vehicle component for a motor vehicle is provided, which includes a lighting system, wherein the vehicle component includes, for example, a body element, in particular a radiator grille, or is designed as such a body element, wherein a retaining device is provided for fastening to the vehicle component, and a lighting device is provided together with an optical fiber for illuminating the vehicle component.
[0027] The lighting system can be provided for a motor vehicle. The lighting system can also be provided for a vehicle component or at least form a system together with a vehicle component. The lighting system can be arranged outside a motor vehicle headlight of the motor vehicle (in particular, outside a housing of the motor vehicle headlight) in its installed state in the motor vehicle. Preferably, the lighting system is provided for a motor vehicle and is particularly designed to illuminate a vehicle component, wherein the lighting system is preferably operable independently of the motor vehicle headlight of the motor vehicle. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Hereinafter, the present invention will be further described based on preferred embodiments, however, the present invention is not intended to be limited thereto. In the accompanying drawings:
[0029] Figure 1 shows a cross-sectional view of a lighting system according to a first embodiment of the present invention;
[0030] Figure 2 Shown in accordance with Figure 1 A perspective front view of the lighting system;
[0031] Figure 3 Shown in accordance with Figure 1 A perspective rear view of the lighting system;
[0032] Figure 4 A cross-sectional view of a lighting system according to a second embodiment of the present invention is shown.
[0033] Reference Signs List
[0034] 1. Lighting system
[0035] 2 Photoconductors
[0036] 2a End
[0037] 2b Holding part
[0038] 3. Holding device
[0039] 3a First accommodating portion
[0040] 3b Second accommodating portion
[0041] 3R Dorsal
[0042] 3V front side
[0043] 4 Lighting institutions
[0044] 4a Lighting mechanism carrier
[0045] 5a Light coupling input surface
[0046] 5b Side
[0047] 5c Optical coupling output section
[0048] 6. Retaining element
[0049] 6a Insertion port
[0050] 6b Inner surface
[0051] 6L Maintaining the longitudinal extension of the element
[0052] 7a Locking element
[0053] 7b Locking the mating element
[0054] 8a Through section
[0055] 8b through hole
[0056] 9 Another sealing element
[0057] 10 Sealing sleeve
[0058] L Longitudinal extension of the light guide
[0059] X main radiation direction DETAILED DESCRIPTION
[0060] Figure 1 A first embodiment of an illumination system 1 is shown, comprising an illumination device 4 for generating and radiating light along a main radiation direction x. The illumination device 1 further comprises an optical fiber 2, which is associated with the illumination device 4. The optical fiber 2 has an end 2a with a light coupling-in surface 5a, via which light from the illumination device 4 can be coupled into the optical fiber 2. Proceeding from the light coupling-in surface 5a, side surfaces 5b of the optical fiber 2, which delimit the optical fiber 2, extend along the longitudinal extension L of the optical fiber 2. In the illustrated embodiment, the longitudinal extension L is oriented parallel to the main radiation direction x. The optical fiber 2, in particular its side surfaces 5b, has a light coupling-out portion 5c, via which the coupled-in light is coupled out of the optical fiber 2. The light coupling-out portion 5c is arranged on the portion of the optical fiber facing away from the illumination device 4.
[0061] The lighting system 1 further comprises a holding device 3 which is provided for holding the lighting device 4 and the light conductor 2 relative to one another and for sealing the end 2a and the lighting device 4, preferably against environmental influences, external influences and / or contamination. The holding device 3 has a rear side 3R (see Figure 3 ) and the front side 3V facing the back side 3R (see Figure 2 ).
[0062] A first receptacle 3a is formed on the back side 3R, which accommodates the lighting device 4. A second receptacle 3b is formed on the front side 3V, which accommodates the light conductor 2. The first receptacle 3a and the second receptacle 3b are designed so that light emitted by the lighting device 4 accommodated in the first receptacle 3a is radiated onto the light coupling-in surface 5a of the light conductor 2 accommodated in the second receptacle 3b. The lighting device 4 includes a lighting device carrier 4a, on which at least one light source of the lighting device 4 is arranged. A further sealing element 9 is formed on the back side 3R of the holding device 3, which is provided to form a sealing contact between the first receptacle 3a and the lighting device carrier 4a.
[0063] The second receptacle 3b houses a holding element 6 having a shape corresponding to the end 2a of the optical waveguide 2. The holding element 6 has a longitudinal extension 6L that extends from the front side 3V of the holding device 3 and ends at or opens into an insertion opening 6a of the holding element 6. The longitudinal extension 6L of the holding element 6 is shorter than the longitudinal extension L of the optical waveguide 2.
[0064] To accommodate the light conductor 2 in the second receptacle 3b, the end 2a can be inserted into the insertion opening 6a of the holding element 6 along an insertion direction, particularly oriented along the main radiation direction x. The holding device 3 includes a blocking mechanism that prevents the light conductor 2 from being inserted beyond its final position along this insertion direction. In the inserted state, the holding element 6 at least partially, and preferably completely, surrounds a portion of the light conductor 2 circumferentially. The portion of the side surface 5b of the light conductor 2 surrounded by the holding element 6 defines the holding portion 2b of the light conductor 2. At this holding portion, the inner surface 6b of the holding element 6 faces the side surface 5b of the light conductor 2. In the inserted state, the light coupling-out portion 5c is arranged on the side of the insertion opening 6a facing away from the illumination device 4, particularly outside the holding element 6. In particular, a portion of the light conductor 2 protrudes from the holding element 6, wherein this protruding portion comprises the light coupling-out portion 5c. Preferably, this protruding portion comprises at least 75%, or more than 85%, or more than 90% of the total length of the light conductor. Furthermore, the end 2 a of the light conductor 2 is closer to the lighting device 4 than the holding portion 2 b.
[0065] According to a first exemplary embodiment, the retaining element 6 is designed as a sealing element that tapers along the longitudinal extension 6L toward the insertion opening 6a, so that the retaining element 6, facing the inner surface 6b of the retaining portion 2b of the light conductor 2, makes sealing contact with the side surface 5b of the retaining portion 2b. This sealing contact prevents particles and / or fluids 4 from penetrating through the insertion opening 6a from the front side 3V of the retaining device 3 toward the rear side 3R of the retaining device 3, in particular toward the lighting device. The retaining element 6 interacts with the second receptacle 3b to block movement of the light conductor 2 in a plane oriented perpendicular to the longitudinal extension L of the light conductor 2. The retaining element 6 comprises a sleeve, in particular an elastic sleeve, which surrounds the end 2a and the retaining portion 2b of the light conductor 2.
[0066] The first and second receptacles 3a, 3b are comprised of a first material, and the retaining element 6 is comprised of a second material. The second material has a higher elasticity than the first material. The optical waveguide 2 has a first diameter, and the insertion opening 6a has a second diameter that is smaller than the first diameter. The diameter difference and the elasticity of the second material are selected so that the end 2a of the optical waveguide 2 can (just barely) be inserted into the insertion opening 6a, and the insertion opening 6a widens during insertion due to elasticity. After insertion, particularly after reaching the final position, the inner surface 6b of the retaining element 6 forms a sealing contact with the retaining portion 2b of the optical waveguide 2 due to its elasticity.
[0067] A locking element 7a, such as a locking lug or a locking groove, may be formed at the end 2a of the light conductor 2, and a complementary locking element 7b may be formed at the second receptacle 3b. The locking element 7a and the complementary locking element 7b are configured to form a locking connection that locks when the light conductor 2 reaches its final position within the retaining element 6, thereby preventing the light conductor 2 from being removed from the retaining element 6, in particular, in the main radiation direction x. In this final position, the light coupling surface 5a is at a predetermined distance from the illumination device 4.
[0068] In the first embodiment shown, the retaining element 6 has a through-portion 8a, and the retaining device 3 has a corresponding through-hole 8b. The through-hole extends from the front side 3V toward the back side 3R. The through-portion 8a penetrates the through-hole 8b from the front side 3V toward the back side 3R, thereby accommodating the retaining element 6 in the retaining device 3. In particular, the outer surface of the retaining element 6 contacts the surface of the retaining device opposite the retaining element in a form-fitting manner.
[0069] The retaining element 6 and the retaining device 3 can preferably be manufactured using a 2K injection molding process, in which the retaining device 3 (made of a harder material) is injection molded around the retaining element 6 (made of a softer material). These processes are known to those skilled in the art and, therefore, will not be discussed in detail in this disclosure. The retaining element 6, the through-hole 8a, and the sealing element 9 formed on the back side 3R of the retaining device 3 are preferably integrally formed. The blocking means can be formed on the lighting device carrier 4a.
[0070] The retaining device 3 comprises a first material, such as a plastic, in particular a thermoplastic or thermosetting plastic, and the retaining element 6 comprises a second material, such as an elastomer, which is different from the first material. The second material is more elastic than the first material. The retaining element 6 penetrates the retaining device 3, wherein in particular the retaining element 6 and the retaining device 3 form a 2K component.
[0071] The optical waveguide 2 may comprise a light guide, preferably a transparent light guide, such as an optical fiber or a light guide with a circular cross section. Light may propagate through the optical waveguide 2 along its longitudinal extension L by means of total reflection inside the side surface 5b.
[0072] Figure 4 A second embodiment of the lighting system 1 is shown, wherein in this alternative solution the holding device 3 comprises a sealing sleeve 10 having a shape corresponding to the optical waveguide 2 and the holding element 6. The sealing sleeve 10 surrounds the holding element 6 and the optical waveguide 2 protruding therefrom (or the part of the protruding optical waveguide 2 that is adjacent to the outer side of the insertion opening 6a) in a form-fitting manner on the circumference.
[0073] This enclosure seals the retaining portion 2b and the insertion opening 6a. In this embodiment, the retaining device 3 and the retaining element 6 are preferably integrally formed. Furthermore, the retaining device 3 and the retaining element 6 are made of materials of equal hardness or of the same material. Conversely, the sealing sleeve 10 is designed to be elastically deformable, and in particular, thermally deformable. In particular, the sealing sleeve 10 is designed as a substantially cylindrical shrink tube.
[0074] Within the framework of the present description, the terms “above”, “below”, “horizontally”, “vertically” are to be understood as indications of the orientation of the lighting system when it is in the normal position of use after it has been installed in a motor vehicle.
Claims
1. A lighting system (1), comprising: an illumination device (4) for generating and radiating light along a main radiation direction (x); a light conductor (2) assigned to the lighting device (4), wherein the light conductor (2) has an end (2a) with a light coupling-in surface (5a), wherein light from the lighting device (4) can be coupled into the light conductor (2) via the light coupling-in surface (5a), wherein side surfaces (5b) of the light conductor (2) that delimit the light conductor (2) extend from the light coupling-in surface (5a) along the longitudinal extension (L) of the light conductor (2), wherein the light conductor (2), in particular its side surfaces (5b), has a light coupling-out portion (5c), via which the coupled-in light is coupled out of the light conductor (2); A holding device (3) is provided for holding the lighting device (4) and the light conductor (2) relative to one another and for sealing the end portion (2a) and the lighting device (4), preferably against environmental influences, external influences and / or contamination, wherein the holding device (3) comprises a back side (3R) and a front side (3V) facing away from the back side (3R), wherein a first receptacle (3a) is formed on the back side (3R) at which the lighting device (4) is accommodated, wherein a second receptacle (3b) is formed on the front side (3V) at which the light conductor (2) is accommodated, wherein the first receptacle (3a) and the second receptacle (3b) are designed such that light emitted by the lighting device (4) accommodated in the first receptacle (3a) is radiated onto a light coupling-in surface (5a) of the light conductor (2) accommodated in the second receptacle (3b), wherein the second receiving portion (3b) comprises a retaining element (6) having a shape corresponding to the optical waveguide (2), preferably having a shape corresponding to the end (2a) of the optical waveguide (2), wherein the retaining element (6) has a longitudinal extension (6L) extending from the front side (3V) of the retaining device (3) and terminating at an insertion opening (6a) of the retaining element (6), wherein the longitudinal extension (6L) of the retaining element (6) is shorter than the longitudinal extension (L) of the optical waveguide (2), wherein, in order to accommodate the optical waveguide (2) at the second receiving portion (3b), the end (2a) can be inserted into the insertion opening (6a) of the retaining element (6) along an insertion direction, in particular along the main radiation direction ( x) orientation, wherein the holding device (3) comprises a blocking means which blocks the insertion of the light-conducting element (2) beyond the end position along the insertion direction, wherein, in the inserted state, the holding element (6) at least partially, preferably completely, surrounds a part of the light conductor (2) on the circumferential side, wherein that part of the side surface (5b) of the light conductor (2) which is surrounded by the holding element (6) defines a holding portion (2b) of the light conductor (2), at which the inner surface (6b) of the holding element (6) is opposite to the side surface (5b) of the light conductor (2), wherein, in the inserted state, the light coupling-out portion (5c) is arranged on the side of the insertion opening (6a) facing away from the lighting device (4), in particular outside the holding element (6), It is characterized by: The retaining element (6) is designed as a sealing element, which tapers gradually along the longitudinal extension (6L) toward the insertion opening (6a), so that the retaining element (6) is in sealing contact with the inner surface (6b) of the retaining portion (2b) of the light conductor (2) and the side surface (5b) of the retaining portion (2b), wherein the sealing contact prevents particles and / or fluid from penetrating through the insertion opening (6a) from the front side (3V) of the retaining device (3) toward the back side (3R) of the retaining device (3), in particular toward the lighting device (4).
2. The lighting system according to claim 1, wherein The end portion (2a) of the light conductor (2) is closer to the lighting device (4) than the holding portion (2b) of the light conductor (2).
3. The lighting system according to any one of the preceding claims, wherein: The first receiving portion (3a) and the second receiving portion (3b) comprise a first material, and the retaining element (6) comprises a second material, wherein the second material has a higher elasticity than the first material, wherein the optical waveguide (2) has a first diameter and the insertion opening (6a) has a second diameter, the second diameter being smaller than the first diameter, wherein the diameter difference and the elasticity of the second material are selected such that the end (2a) of the optical waveguide (2) can be inserted into the insertion opening (6a) and the insertion opening (6a) widens during the insertion due to the elasticity, and after the insertion, the inner surface (6b) of the retaining element (6) forms a sealing contact with the retaining portion (2b) of the optical waveguide (2).
4. The lighting system according to any one of the preceding claims, wherein: A locking element (7a), such as a locking lug or a locking groove, is formed at the end (2a) of the optical waveguide (2), and a locking mating element (7b) designed complementary to the locking element (7a) is formed at the second receiving portion (3b), wherein the locking element (7a) and the locking mating element (7b) are configured to form a locking connection, wherein the locking connection is locked when the optical waveguide (2) reaches an end position in the retaining element (6), thereby preventing the optical waveguide (2) from being moved out of the retaining element (6), in particular along the main radiation direction (x), wherein in the end position, the light coupling-in surface (5a) is at a specified distance from the lighting device (4).
5. The lighting system according to any one of the preceding claims, wherein: The retaining element (6) interacts with the second receptacle (3b) to block a movement of the light conductor (2) in a plane oriented perpendicular to the longitudinal extension (L) of the light conductor (2).
6. The lighting system according to any one of the preceding claims, wherein: The retaining element (6) has a through portion (8a), wherein the retaining device (3) has at least one through hole (8b), which extends from the front side (3V) toward the back side (3R), wherein the through portion (8a) penetrates the through hole (8b) from the front side (3V) toward the back side (3R).
7. A lighting system according to any one of the preceding claims, wherein: The lighting device (4) has a lighting device carrier (4a), on which at least one light source of the lighting device (4) is arranged, wherein a further sealing element (9) is formed on the back side (3R) of the holding device (3), the further sealing element being provided for forming a sealing contact between the first receptacle (3a) and the lighting device carrier (4a).
8. The lighting system according to claim 6 or 7, wherein: The retaining element (6), the through-hole (8a) and the further sealing element (9) formed on the back side (3R) of the retaining device (3) are formed integrally, wherein, preferably, the blocking means is formed on the lighting means carrier (4a).
9. The lighting system according to any one of the preceding claims, wherein: The holding element (6) comprises a sleeve, in particular an elastic sleeve, which surrounds the end (2a) and the holding portion (2b) of the light conductor (2).
10. The lighting system according to any one of the preceding claims, wherein: The retaining device (3) comprises a first material, for example a plastic, in particular a thermoplastic or a thermosetting plastic, and the retaining element (6) comprises a second material different from the first material, for example an elastomer, wherein the second material is more elastic than the first material, wherein the retaining element (6) penetrates the retaining device (3), wherein in particular the retaining element (6) and the retaining device (3) form a 2K component.
11. The lighting system according to any one of the preceding claims, wherein: The optical waveguide (2) comprises a light guide, preferably a transparent light guide, such as an optical fiber or a light guide with a circular cross section, wherein preferably light propagates through the optical waveguide (2) along the longitudinal extent (L) of the optical waveguide by means of total reflection on the inner side of the side surface (5b).
12. A lighting system (1), comprising: an illumination device (4) for generating and radiating light along a main radiation direction (x); a light conductor (2) assigned to the lighting device (4), wherein the light conductor (2) has an end (2a) with a light coupling-in surface (5a), wherein light from the lighting device (4) can be coupled into the light conductor (2) via the light coupling-in surface (5a), wherein side surfaces (5b) of the light conductor (2) that delimit the light conductor (2) extend from the light coupling-in surface (5a) along the longitudinal extension (L) of the light conductor (2), wherein the light conductor (2), in particular its side surfaces (5b), has a light coupling-out portion (5c), via which the coupled-in light is coupled out of the light conductor (2); A holding device (3) is provided for holding the lighting device (4) and the light conductor (2) relative to one another and for sealing the end portion (2a) and the lighting device (4), preferably against environmental influences, external influences and / or contamination, wherein the holding device (3) comprises a back side (3R) and a front side (3V) facing away from the back side (3R), wherein a first receptacle (3a) is formed on the back side (3R) at which the lighting device (4) is accommodated, wherein a second receptacle (3b) is formed on the front side (3V) at which the light conductor (2) is accommodated, wherein the first receptacle (3a) and the second receptacle (3b) are designed such that light emitted by the lighting device (4) accommodated in the first receptacle (3a) is radiated onto a light coupling-in surface (5) of the light conductor (2) accommodated in the second receptacle (3b), wherein the second receiving portion (3b) has a holding element (6) having a shape corresponding to the end (2a) of the optical waveguide (2), wherein the holding element (6) has a longitudinal extension (6L) extending from the front side (3V) of the holding device (3) and terminating at an insertion opening (6a) of the holding element (6), wherein the longitudinal extension (6L) of the holding element (6) is shorter than the longitudinal extension (L) of the optical waveguide (2), wherein, in order to accommodate the optical waveguide (2) at the second receiving portion (3b), the end (2a) can be inserted into the insertion opening (6a) of the holding element (6) along an insertion direction, wherein the insertion direction is particularly oriented along the main radiation direction (x), wherein the The holding device (3) comprises a blocking mechanism which blocks the insertion of the light-conducting element (2) beyond a final position along the insertion direction, wherein, in the inserted state, the holding element (6) at least partially, preferably completely, surrounds a portion of the light conductor (2) on the circumferential side, wherein that portion of the side surface (5b) of the light conductor (2) which is surrounded by the holding element (6) defines a holding portion (2b) of the light conductor (2), at which the inner surface (6b) of the holding element (6) is opposite to the side surface (5b) of the light conductor (2), wherein, in the inserted state, the light coupling-out portion (5c) is arranged on a side of the insertion opening (6a) facing away from the lighting device (4), in particular outside the holding element (6), It is characterized by: The holding device (3) has a sealing sleeve (10) having a shape corresponding to the optical waveguide (2) and the holding element (6), wherein the sealing sleeve (10) surrounds the holding element (6) and the optical waveguide (2) protruding therefrom in a form-fitting manner on the circumferential side, wherein the holding portion (2b) and the insertion opening (6a) are sealed by the surrounding.
13. The lighting system according to claim 14, wherein: The sealing sleeve (10) is designed as a substantially cylindrical shrink tube.
14. A motor vehicle or a lamp for a motor vehicle comprising a lighting system (1) according to any one of the preceding claims.
15. A vehicle assembly for a motor vehicle, comprising a lighting system (1) according to any one of claims 1 to 13, wherein The vehicle component comprises, for example, a body element, in particular a radiator grille, or is designed as such a body element, wherein the holding device (3) is provided for fastening to the vehicle component and the lighting device (4) together with the light conductor (2) is provided for illuminating the vehicle component.