Lighting system

Abstract

Lighting system (1), comprising a lighting means (4), a light-guiding body (2) which is assigned to the lighting means (4), a holding device (3) which is designed to hold the lighting means (4) and the light-guiding body (2) relative to one another and to seal an end section (2a) and the lighting means (4) against environmental influences, wherein the holding device (3) has a holding element (6) with a shape corresponding to the end section (2a) of the light-guiding body (2), wherein the holding element (6) is designed as a sealing element which tapers along its longitudinal extent (6L) towards an insertion opening (6a), whereby the inner surface (6b) of the holding element (6) facing a holding section (2b) of the light-guiding body (2) makes sealing contact with a lateral surface (5b) of the holding section (2b).

Description

Technical area

[0001] The invention relates to a lighting system comprising: a light source for generating and emitting light along a main emission direction, a light-guiding body which is assigned to the light source, wherein the light source has an end section with a light coupling surface, wherein light from the light source can be coupled into the light source via the light coupling surface, wherein, starting from the light coupling surface, a lateral surface of the light source delimiting the light source extends along a longitudinal extent of the light source, wherein the light source, in particular its lateral surface, has a light decoupling section via which coupled-in light is decoupled from the light source, a holding device which is configured to hold the light source and the light source relative to one another and to seal the end section and the light source, preferably against environmental influences, external influences and / or contamination,wherein the holding device comprises a rear side and a front side facing away from the rear side, wherein a first receiving section is formed on the rear side, in which the illuminant is received, wherein a second receiving section is formed on the front side, in which the light-guiding body is received, wherein the first receiving section and the second receiving section are designed such that light emitted by the illuminant received in the first receiving section is radiated onto the light-coupling surface of the light-guiding body received in the second receiving section, wherein the second receiving section has a holding element with a shape corresponding to the light-guiding body, preferably with a shape corresponding to the end section of the light-guiding body, wherein the holding element has a longitudinal extension which extends away from the front side of the holding device and ends in an insertion opening of the holding element,wherein the longitudinal extent of the holding element is shorter than the longitudinal extent of the light-guiding body, wherein, in order to receive the light-guiding body at the second receiving portion, the end portion is insertable into the insertion opening of the holding element along an insertion direction, which is oriented in particular along the main emission direction, wherein the holding device comprises a blocking means which blocks insertion of the light-guiding element along the insertion direction beyond an end position, wherein, in the inserted state, the holding element encloses a portion of the light-guiding body circumferentially at least in portions, preferably completely, wherein that portion of the lateral surface of the light-guiding body which is enclosed by the holding element defines a holding portion of the light-guiding body, at which an inner surface of the holding element lies opposite the lateral surface of the light-guiding body,wherein, in the inserted state, the light decoupling section is arranged on a side of the insertion opening facing away from the illuminant, in particular outside the holding element.

[0002] The invention further relates to a motor vehicle or a vehicle lamp for a motor vehicle, comprising a lighting system.

[0003] The invention further relates to a vehicle component for a motor vehicle, comprising a lighting system. Technical background

[0004] Such lighting systems, which are used in particular in motor vehicles, are known in the prior art. In such lighting systems, it is necessary to protect electronic and / or optical components of the lighting system from external influences, for example, environmental influences. This is typically achieved by sealing elements. In known solutions, a housing containing the electronic and optical components is usually sealed at several points. The housing is frequently sealed with separate sealants on a rear side, to which the electronic components are attached, and on a front side, to which the optical components are attached, which increases the design complexity and costs.

[0005] The object of the present invention is to alleviate or eliminate the disadvantages of the prior art. The invention therefore aims, in particular, to create a lighting system in which reliable sealing of the electronic and optical components of the lighting system is achieved using simple means.

[0006] 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 specified in the dependent claims. Brief description of the invention

[0007] According to the invention, the holding element is designed as a sealing element which tapers along the longitudinal extent towards the insertion opening in such a way that the inner surface of the holding element facing the holding section of the light guide body makes sealing contact with the lateral surface of the holding section, wherein the sealing contact prevents particles and / or fluids from penetrating through the insertion opening from the front side of the holding device towards the rear side of the holding device, in particular towards the illuminant.

[0008] This offers the advantage that the holding element, by enclosing the holding section, holds the light guide body in a predetermined position relative to the light source and simultaneously seals the connecting section between the light source and the light guide, or the area where the light source is opposite the light guide, against contamination. Thus, the lighting system can also be used outside of a motor vehicle headlight housing, for example, to illuminate motor vehicle components, since the lighting system is not dependent on the sealing elements of the motor vehicle headlight housing.

[0009] It can be provided that the end section of the light guide body is closer to the lamp than the holding section of the light guide body.

[0010] It can be provided that the first receiving section and the second receiving section comprise a first material and the holding element comprises a second material, wherein the second material has a higher elasticity than the first material, wherein the light guide body has a first diameter and the insertion opening has a second diameter which is smaller than the first diameter, wherein the diameter difference and the elasticity of the second material are selected such that the end section of the light guide body can be inserted into the insertion opening and the insertion opening widens due to the elasticity during insertion, and that after insertion the inner surface of the holding element forms a sealing contact with the holding section of the light guide body.

[0011] It can be provided that a locking element, for example a locking lug or a locking recess, is formed on the end section of the light guide body, and a locking counter-element designed complementary to the locking element is formed on the second receiving section, wherein the locking element and the locking counter-element are designed to form a locking connection, wherein the locking connection engages when the end position of the light guide body is reached within the holding element, whereby a movement of the light guide body out of the holding element, in particular along the main emission direction, is blocked, wherein in the end position the light coupling surface has a predetermined distance from the illuminant.

[0012] It can be provided that the holding element cooperates with the second receiving section in such a way that a movement of the light guide body is blocked in a plane which is oriented orthogonally to the longitudinal extent of the light guide body.

[0013] It can be provided that the holding element has a penetration section, wherein the holding device has at least one penetration opening which extends from the front side to the back side, wherein the penetration section penetrates the penetration opening from the front side to the back side.

[0014] It can be provided that the illuminant has a illuminant carrier on which at least one light source of the illuminant is arranged, wherein a further sealing element is formed on the rear side of the holding device, which sealing element is designed to form a sealing contact between the first receiving section and the illuminant carrier.

[0015] It can be provided that the holding element, the penetration section and the further sealing element formed on the rear side of the holding device are formed in one piece, wherein the blocking means is preferably formed on the lamp carrier.

[0016] It can be provided that the holding element comprises a sleeve, in particular an elastic sleeve, which encloses the end section and the holding section of the light guide body.

[0017] It can be provided that the holding device comprises a first material, for example plastic, in particular a thermoplastic or a thermosetting plastic, and the holding 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 holding element penetrates the holding device, wherein in particular the holding element and the holding device form a 2K component.

[0018] It can be provided that the light guide body comprises a, preferably transparent, light guide, for example an optical fiber or a light guide with a circular cross-section, wherein light preferably propagates within the light guide body by means of total reflection on an inner side of the lateral surface through the light guide body along its longitudinal extent.

[0019] According to an alternative solution according to the invention, the holding device has a sealing sleeve which has a shape corresponding to the light guide body and the holding element, wherein the sealing sleeve surrounds the holding element and the light guide body projecting therefrom in a form-fitting manner on the circumference, wherein the holding section and the insertion opening are sealed by the casing.

[0020] It can be provided that the sealing sleeve is designed as a substantially cylindrical heat-shrink tube. Preferably, the heat-shrink tube is thermally treated (in particular heated) after it has been slipped over the holding element and the light-guiding body, thereby reducing the diameter of the heat-shrink tube and forming a tight-fitting or sealing contact with the holding element and the light-guiding body.

[0021] According to a further aspect of the invention, a vehicle light is provided for a motor vehicle or a motor vehicle, which comprises a lighting system. According to a further aspect of the invention, a vehicle component is provided for a motor vehicle, comprising a lighting system, wherein the vehicle component comprises, for example, a body element, in particular a radiator grille, or is designed as such, wherein the holding device is configured for attachment to the vehicle component, and the illuminant with the light guide body is configured for illuminating the vehicle component.

[0022] The lighting system can be provided for a motor vehicle. The lighting system can also be provided for a motor vehicle component or form a system together with a motor vehicle component. The lighting system can, in an installed state in which it is installed in a motor vehicle, be arranged outside a motor vehicle headlight of the motor vehicle (in particular outside a housing of the motor vehicle headlight). Preferably, the lighting system is provided for a motor vehicle and is designed in particular to illuminate a motor vehicle component of the motor vehicle, wherein the lighting system is preferably operable independently of a motor vehicle headlight of the motor vehicle. Short description of the characters

[0023] The invention is further explained below using preferred embodiments, to which, however, it is not intended to be limited. The drawings show: Fig. 1 a sectional view of an inventive lighting system according to a first embodiment; Fig. 2 a perspective front view of the lighting system according to Fig. 1 ; Fig. 3 a perspective rear view of the lighting system according to Fig. 1 ; Fig. 4 a sectional view of an inventive lighting system according to a second embodiment. Detailed description of the embodiments

[0024] Fig. 1shows a first exemplary embodiment of a lighting system 1, comprising a light source 4, for generating and emitting light along a main emission direction x. The lighting system 1 further comprises a light guide body 2, which is assigned to the light source 4. The light guide body 2 has an end section 2a with a light coupling surface 5a, wherein light from the light source 4 can be coupled into the light guide body 2 via the light coupling surface 5a. Starting from the light coupling surface 5a, a lateral surface 5b of the light guide body 2 delimiting the light guide body 2 extends along a longitudinal extent L of the light guide body 2. In the exemplary embodiment shown, the longitudinal extent L is oriented parallel to the main emission direction x. The light guide body 2, in particular its lateral surface 5b, has a light output section 5c, via which coupled-in light is output from the light guide body 2.The light output section 5c is arranged on a section of the light guide facing away from the illuminant 4.

[0025] The lighting system 1 further comprises a holding device 3, which is configured to hold the illuminant 4 and the light guide body 2 relative to one another and to seal the end section 2a and the illuminant 4, preferably against environmental influences, external influences, and / or contamination. The holding device 3 has a rear side 3R (see FIG. Fig. 3 ) and a front side 3V facing away from the back 3R (cf. Fig. 2 ).

[0026] A first receiving section 3a, in which the illuminant 4 is received, is formed on the rear side 3R. A second receiving section 3b, in which the light-guiding body 2 is received, is formed on the front side 3V. The first receiving section 3a and the second receiving section 3b are designed such that light emitted by the illuminant 4 received in the first receiving section 3a is radiated onto the light-coupling surface 5a of the light-guiding body 2 received in the second receiving section 3b. The illuminant 4 has a illuminant carrier 4a, on which at least one light source of the illuminant 4 is arranged. A further sealing element 9 is formed on the rear side 3R of the holding device 3 and is designed to form a sealing contact between the first receiving section 3a and the illuminant carrier 4a.

[0027] A holding element 6 is received on the second receiving section 3b, which has a shape corresponding to the end section 2a of the light guide body 2. The holding element 6 has a longitudinal extension 6L, which extends from the front side 3V of the holding device 3 and ends 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 light guide body 2.

[0028] To receive the light-guiding body 2 at the second receiving section 3b, the end section 2a can be inserted into the insertion opening 6a of the holding element (6) along an insertion direction, which is oriented in particular along the main emission direction x. The holding device 3 has a blocking means which blocks insertion of the light-guiding element 2 along the insertion direction beyond an end position. In the inserted state, the holding element 6 encloses a section of the light-guiding body 2 circumferentially, at least in sections, preferably completely. That section of the lateral surface 5b of the light-guiding body 2 which is enclosed by the holding element 6 defines a holding section 2b of the light-guiding body 2. An inner surface 6b of the holding element 6 lies opposite the lateral surface 5b of the light-guiding body 2.In the inserted state, the light-coupling section 5c is arranged on a side of the insertion opening 6a facing away from the illuminant 4, in particular outside the holding element 6. In particular, a section of the light-guiding body 2 protrudes from the holding element 6, wherein the protruding section comprises the light-coupling section 5c. Preferably, the protruding section comprises at least 75%, or more than 85%, or more than 90% of the total length of the light-guiding body. Furthermore, the end section 2a of the light-guiding body 2 is closer to the illuminant 4 than the holding section 2b.

[0029] According to the first exemplary embodiment, the holding element 6 is designed as a sealing element which tapers along the longitudinal extent 6L towards the insertion opening 6a in such a way that the inner surface 6b of the holding element 6 facing the holding section 2b of the light-guiding body 2 makes sealing contact with the outer surface 5b of the holding section 2b. This sealing contact prevents particles and / or fluids from penetrating through the insertion opening 6a from the front side 3V of the holding device 3 to the rear side 3R of the holding device 3, in particular towards the illuminant 4. The holding element 6 interacts with the second receiving section 3b in such a way that movement of the light-guiding body 2 in a plane oriented orthogonally to the longitudinal extent L of the light-guiding body 2 is blocked. The holding element 6 comprises a sleeve, in particular an elastic one, which encloses the end section 2a and the holding section 2b of the light guide body 2.

[0030] The first receiving section 3a and the second receiving section 3b comprise a first material, and the holding element 6 comprises a second material. The second material has a higher elasticity than the first material. The light guide body 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 such that the end section 2a of the light guide body 2 can (just) be inserted into the insertion opening 6a, and the insertion opening 6a widens due to the elasticity during insertion. After insertion, in particular after reaching the end position, the inner surface 6b of the holding element 6, due to its elasticity, forms a sealing contact with the holding section 2b of the light guide body 2.

[0031] A locking element 7a, for example a locking lug or a locking recess, can be formed on the end section 2a of the light-guiding body 2, and a locking counter-element 7b designed to complement the locking element 7a can be formed on the second receiving section 3b. The locking element 7a and the locking counter-element 7b are designed to form a locking connection which, upon reaching the end position of the light-guiding body 2, engages within the holding element 6, thereby blocking any movement of the light-guiding body 2 out of the holding element 6, in particular along the main emission direction x. In the end position, the light coupling surface 5a has a predetermined distance from the illuminant 4.

[0032] In the first exemplary embodiment shown, the holding element 6 has a penetration section 8a, and the holding device 3 has a corresponding penetration opening 8b. This opening extends from the front side 3V to the rear side 3R. The penetration section 8a penetrates the penetration opening 8b from the front side 3V to the rear side 3R, whereby the holding element 6 is received in the holding device 3. In particular, an outer surface of the holding element 6 makes positive contact with an opposite surface of the holding device.

[0033] The holding element 6 and the holding device 3 can preferably be manufactured using a 2K injection molding process, in which the holding device 3 (consisting of a harder material) is injection-molded around the holding element 6 (consisting of a softer material). Such processes are known to those skilled in the art, which is why details will not be discussed in detail in this disclosure. The holding element 6, the penetration section 8a, and the further sealing element 9 formed on the rear side 3R of the holding device 3 are preferably formed in one piece. The blocking means can be formed on the lamp carrier 4a.

[0034] The holding device 3 comprises a first material, for example, plastic, in particular a thermoplastic or a thermoset, and the holding element 6 comprises a second material different from the first material, for example, an elastomer. The second material is more elastic than the first material. The holding element 6 penetrates the holding device 3, wherein, in particular, the holding element 6 and the holding device 3 form a two-component component.

[0035] The light-guiding body 2 can comprise a preferably transparent light guide, for example an optical fiber or a light guide with a circular cross-section. Light can propagate within the light-guiding body 2 along its longitudinal extent L by means of total reflection on an inner side of the lateral surface 5b.

[0036] Fig. 4shows a second embodiment of a lighting system 1, wherein in this alternative solution, the holding device 3 has a sealing sleeve 10, which has a shape corresponding to the light-guiding body 2 and the holding element 6. The sealing sleeve 10 surrounds the holding element 6 and the light-guiding body 2 protruding therefrom (or that portion of the protruding light-guiding body 2 which is close to the outside of the insertion opening 6a) in a form-fitting manner.

[0037] The sheath seals the holding section 2b and the insertion opening 6a. In this exemplary embodiment, the holding device 3 and the holding element 6 are preferably formed in one piece. Furthermore, the holding device 3 and the holding element 6 are made of a material of the same hardness or the same material. The sealing sleeve 10, on the other hand, is elastic and, in particular, thermally deformable. In particular, the sealing sleeve 10 is designed as a substantially cylindrical shrink tube.

[0038] For the purposes of this description, the terms "top", "bottom", "horizontal" and "vertical" are to be understood as indicating the orientation when the lighting system is arranged in the normal position of use after it has been installed in a motor vehicle. LIST OF REFERENCE SYMBOLS

[0039] 1Lighting system 2Light guide 2aEnd section 2bHolding section 3Holding device 3aFirst receiving section 3bSecond receiving section 3RRear side 3VFront side 4Light source 4aLight source carrier 5aLight coupling surface 5bSurface surface 5cLight coupling section 6Holding element 6aInsertion opening 6bInner surface 6Longitudinal extension of the holding element 7aLocking element 7bLocking counter element 8aThrough section 8bThrough opening 9Further sealing element 10Sealing sleeve LLongitudinal extension of the light guide XMain radiation direction

Claims

1. A lighting system (1), comprising: a light-emitting means (4) for generating and emitting light along a main emission direction (x), a light-guiding body (2) which is assigned to the light-guiding means (4), wherein the light-guiding body (2) has an end section (2a) with a light-coupling surface (5a), wherein light from the light-guiding means (4) can be coupled into the light-guiding body (2) via the light-coupling surface (5a), wherein, starting from the light-coupling surface (5a), a lateral surface (5b) of the light-guiding body (2) delimiting the light-guiding body (2) extends along a longitudinal extent (L) of the light-guiding body (2), wherein the light-guiding body (2), in particular its lateral surface (5b), has a light-coupling section (5c) via which coupled-in light is coupled out of the light-guiding body (2), a holding device (3) which is designed toto hold the illuminant (4) and the light-guiding body (2) relative to one another and to seal the end section (2a) and the illuminant (4), preferably against environmental influences, external influences and / or contamination, wherein the holding device (3) comprises a rear side (3R) and a front side (3V) facing away from the rear side (3R), wherein a first receiving section (3a) is formed on the rear side (3R), in which the illuminant (4) is received, wherein a second receiving section (3b) is formed on the front side (3V), in which the light-guiding body (2) is received, wherein the first receiving section (3a) and the second receiving section (3b) are designed such that light emitted by the illuminant (4) received in the first receiving section (3a) is radiated onto the light coupling surface (5a) of the light-guiding body (2) received in the second receiving section (3b), wherein the second receiving section (3b) has a holding element (6),with a shape corresponding to the light-guiding body (2), preferably with a shape corresponding to the end section (2a) of the light-guiding body (2), wherein the holding element (6) has a longitudinal extension (6L) which extends away from the front side (3V) of the holding device (3) and ends in 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 light-guiding body (2), wherein, in order to receive the light-guiding body (2) at the second receiving section (3b), the end section (2a) can be inserted into the insertion opening (6a) of the holding element (6) along an insertion direction which is oriented in particular along the main emission direction (x), wherein the holding device (3) comprises a blocking means which blocks insertion of the light-guiding element (2) along the insertion direction beyond an end position,wherein, in the inserted state, the holding element (6) encloses a portion of the light guide body (2) circumferentially at least in sections, preferably completely, wherein that portion of the lateral surface (5b) of the light guide body (2) which is enclosed by the holding element (6) defines a holding portion (2b) of the light guide body (2), on which an inner surface (6b) of the holding element (6) lies opposite the lateral surface (5b) of the light guide body (2), wherein, in the inserted state, the light decoupling portion (5c) is arranged on a side of the insertion opening (6a) facing away from the illuminant (4), in particular outside the holding element (6), characterized in thatthe holding element (6) is designed as a sealing element which tapers along the longitudinal extent (6L) towards the insertion opening (6a) in such a way that the inner surface (6b) of the holding element (6) facing the holding section (2b) of the light guide body (2) makes sealing contact with the lateral surface (5b) of the holding section (2b), wherein the sealing contact prevents particles and / or fluids from penetrating through the insertion opening (6a) from the front side (3V) of the holding device (3) towards the rear side (3R) of the holding device (3), in particular towards the illuminant (4).

2. Lighting system according to claim 1, wherein the end portion (2a) of the light guide body (2) is closer to the illuminant (4) than the holding portion (2b) of the light guide body (2).

3. Lighting system according to one of the preceding claims, wherein the first receiving section (3a) and the second receiving section (3b) comprise a first material and the holding element (6) comprises a second material, wherein the second material has a higher elasticity than the first material, wherein the light guide body (2) has a first diameter and the insertion opening (6a) has a second diameter which is smaller than the first diameter, wherein the diameter difference and the elasticity of the second material are selected such that the end section (2a) of the light guide body (2) can be inserted into the insertion opening (6a) and the insertion opening (6a) widens due to the elasticity during insertion, and that after insertion the inner surface (6b) of the holding element (6) forms a sealing contact with the holding section (2b) of the light guide body (2).

4. Lighting system according to one of the preceding claims, wherein a locking element (7a), for example a locking lug or a locking recess, is formed on the end section (2a) of the light guide body (2), and a locking counter-element (7b) designed to be complementary to the locking element (7a) is formed on the second receiving section (3b), wherein the locking element (7a) and the locking counter-element (7b) are designed to form a locking connection, wherein the locking connection engages within the holding element (6) when the end position of the light guide body (2) is reached, whereby a movement of the light guide body (2) out of the holding element (6), in particular along the main emission direction (x), is blocked, wherein in the end position the light coupling surface (5a) has a predetermined distance from the illuminant (4).

5. Lighting system according to one of the preceding claims, wherein the holding element (6) cooperates with the second receiving section (3b) in such a way that a movement of the light guide body (2) in a plane which is oriented orthogonally to the longitudinal extent (L) of the light guide body (2) is blocked.

6. Lighting system according to one of the preceding claims, wherein the holding element (6) has a penetration section (8a), wherein the holding device (3) has at least one penetration opening (8b) which extends from the front side (3V) to the rear side (3R), wherein the penetration section (8a) penetrates the penetration opening (8b) from the front side (3V) to the rear side (3R).

7. Lighting system according to one of the preceding claims, wherein the illuminant (4) has a illuminant carrier (4a) on which at least one light source of the illuminant (4) is arranged, wherein a further sealing element (9) is formed on the rear side (3R) of the holding device (3), which sealing element is designed to form a sealing contact between the first receiving section (3a) and the illuminant carrier (4a).

8. Lighting system according to claims 6 and 7, wherein the holding element (6), the penetration section (8a) and the further sealing element (9) formed on the rear side (3R) of the holding device (3) are formed in one piece, wherein preferably the blocking means is formed on the lamp carrier (4a).

9. Lighting system according to one of the preceding claims, wherein the holding element (6) comprises a sleeve, in particular an elastic sleeve, which encloses the end section (2a) and the holding section (2b) of the light guide body (2).

10. Lighting system according to one of the preceding claims, wherein the holding device (3) comprises a first material, for example plastic, in particular a thermoplastic or a thermoset, and the holding 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 holding element (6) penetrates the holding device (3), wherein in particular the holding element (6) and the holding device (3) form a 2K component.

11. Lighting system according to one of the preceding claims, wherein the light guide body (2) comprises a, preferably transparent, light guide, for example an optical fiber or a light guide with a circular cross-section, wherein light preferably propagates within the light guide body (2) by means of total reflection on an inner side of the lateral surface (5b) through the light guide body (2) along its longitudinal extent (L).

12. Lighting system (1), comprising: a light source (4) for generating and emitting light along a main emission direction (x), a light guide body (2) which is assigned to the light source (4), wherein the light guide body (2) has an end section (2a) with a light coupling surface (5a), wherein light from the light source (4) can be coupled into the light guide body (2) via the light coupling surface (5a), wherein, starting from the light coupling surface (5a), a lateral surface (5b) of the light guide body (2) delimiting the light guide body (2) extends along a longitudinal extent (L) of the light guide body (2), wherein the light guide body (2), in particular its lateral surface (5b), has a light coupling-out section (5c) via which coupled-in light is coupled out of the light guide body (2), a holding device (3) which is designed toto hold the illuminant (4) and the light-guiding body (2) relative to one another and to seal the end section (2a) and the illuminant (4), preferably against environmental influences, external influences and / or contamination, wherein the holding device (3) comprises a rear side (3R) and a front side (3V) facing away from the rear side (3R), wherein a first receiving section (3a) is formed on the rear side (3R), in which the illuminant (4) is received, wherein a second receiving section (3b) is formed on the front side (3V), in which the light-guiding body (2) is received, wherein the first receiving section (3a) and the second receiving section (3b) are designed such that light emitted by the illuminant (4) received in the first receiving section (3a) is radiated onto the light coupling surface (5a) of the light-guiding body (2) received in the second receiving section (3b), wherein the second receiving section (3b) has a holding element (6),with a shape corresponding to the end section (2a) of the light-guiding body (2), wherein the holding element (6) has a longitudinal extension (6L) which extends away from the front side (3V) of the holding device (3) and ends in 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 light-guiding body (2), wherein for receiving the light-guiding body (2) at the second receiving section (3b), the end section (2a) can be inserted into the insertion opening (6a) of the holding element (6) along an insertion direction which is oriented in particular along the main emission direction (x), wherein the holding device (3) comprises a blocking means which blocks insertion of the light-guiding element (2) along the insertion direction beyond an end position, wherein in the inserted state the holding element (6) forms a section of the light guide body (2) circumferentially at least in sections,preferably completely, wherein that portion of the lateral surface (5b) of the light-guiding body (2) which is encased by the holding element (6) defines a holding portion (2b) of the light-guiding body (2), on which an inner surface (6b) of the holding element (6) lies opposite the lateral surface (5b) of the light-guiding body (2), wherein in the inserted state the light decoupling portion (5c) is arranged on a side of the insertion opening (6a) facing away from the illuminant (4), in particular outside the holding element (6), , characterized in that the holding device (3) has a sealing sleeve (10) which has a shape corresponding to the light-guiding body (2) and the holding element (6), wherein the sealing sleeve (10) surrounds the holding element (6) and the light-guiding body (2) projecting therefrom in a form-fitting manner on the circumference, wherein the holding section (2b) and the insertion opening (6a) are sealed by the casing.

13. Lighting system according to claim 14, wherein the sealing sleeve (10) is designed as a substantially cylindrical shrink tube.

14. Motor vehicle or vehicle lamp for a motor vehicle, comprising a lighting system (1) according to one of the preceding claims.

15. Vehicle component for a motor vehicle, comprising a lighting system (1) according to 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, wherein the holding device (3) is designed for attachment to the vehicle component and the lighting means (4) with the light guide body (2) is designed for illuminating the vehicle component.

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