System for fastening and clamping light guide on carrier

Abstract

A system (1) for fastening and clamping a light guide (2) on a carrier (3), comprising: a light guide (2), the light guide (2) having a first end (2a), a second end (2b) and a light guide base body (2c) formed between the first end (2a) and the second end (2b); the carrier (3) comprises a clamping part (4), and the light guide body base body (2c) is located on the clamping part at least in sections; a clamping device (5), which is configured such that the first end (2a) of the light guide (2) is moved in a clamping direction (S) relative to the carrier (3) in order to clamp the light guide (2) relative to the carrier (3), the normal distance between the light coupling surface (2a1) of the first end (2a) and the carrier (3) being reduced during the movement.

Description

Technical Field

[0001] The invention relates to a system for fastening and clamping a light guide on a carrier.

[0002] The invention further relates to a lighting device for a motor vehicle, comprising a system for fastening and clamping a light guide on a carrier. Background Art

[0003] Various fastening systems for fastening light guides are known from the prior art. When using these fastening systems, the light guide is usually pressed into a recess whose shape matches that of the light guide. In this case, more than 50% of the surface of the light guide must be surrounded on the circumferential side in order to fasten the light guide in the recess. This has the disadvantage that the amount of light emitted is reduced. An alternative in the prior art is to clamp the light guide between two components, one of which is usually of transparent construction. However, this has the disadvantage that both components need to be fastened. Furthermore, no clamping solution for the light guide is provided in the known systems. Therefore, in the known systems, the light guide always has to be clamped by a separate clamping device.

[0004] The object of the present invention is to mitigate or eliminate the disadvantages of the prior art.An object of the present invention is in particular to create an improved system for fastening and clamping a light guide.

[0005] This object is achieved by a system having the features of claim 1. Preferred embodiments are specified in the dependent claims. Summary of the invention

[0006] The system of the present invention comprises:

[0007] * A light guide, preferably an optical fiber, wherein the light guide has a first end, a second end, and a light guide matrix constructed between the first end and the second end; the light guide matrix is ​​preferably designed to be substantially cylindrical; at least the first end has a light coupling surface, through which light from a light source can be coupled into the light guide; the outer surface of the light guide limiting the light guide matrix is ​​at least segmentally constructed as a light decoupling surface, and light coupled into the light guide through the light coupling surface of the light guide can be decoupled through the light decoupling surface;

[0008] * a carrier, comprising a clamping portion, the outer surface of the light guide is at least partially located on the clamping portion, and the clamping portion is configured so that the clamping portion at least partially covers the outer surface of the light guide located thereon on the circumferential side; the carrier has a fastening portion and a clamping portion, the first end of the light guide is movably held on the clamping portion, and the second end of the light guide is fastened to the fastening portion in a fixed position;

[0009] *The clamping device is configured such that, under the action of a clamping force, the first end portion of the light guide moves relative to the clamping portion of the carrier along a clamping direction, thereby clamping the light guide relative to the clamping portion of the carrier; during the movement, a normal distance greater than zero between the optical coupling surface of the first end portion and the clamping portion of the carrier decreases; the clamping portion and the clamping portion are designed such that the clamping force acting on the first end portion in the direction of the clamping portion is converted into a pressing force acting on the outer surface of the light guide, and the outer surface of the light guide located on the clamping portion is pressed toward the clamping portion by the pressing force.

[0010] The advantages of this are that on the one hand, the light guide is fastened to the clamping portion, and on the other hand, the distance between the light coupling surface of the light guide and the clamping portion of the carrier can be adjusted by the clamping device. The light guide and its outer surface can be fastened to the clamping portion by the pressing force.

[0011] The clamping device can be configured to have a linearly movable clamping element, preferably supported on the carrier in a linearly movable manner, the clamping element being configured to be engageable in a coupling portion of the first end portion of the light guide, the linear movement of the clamping element being transmitted to the first end portion by coupling, the first end portion of the light guide engaged with the clamping element being moved along the clamping portion direction of the carrier by the linear movement of the clamping element along the clamping direction, in particular being moved simultaneously with the clamping element, the clamping element and the first end portion preferably moving with the same length of movement.

[0012] The clamping device can be configured to have a guide element, in particular a guide channel, wherein the guide element is configured to guide the light guide to move at least in sections along the clamping direction, and the guide element is preferably designed so that the guided light guide segment is clamped on the guide element in a movably manner, or passes through the guide element, and the clamping element is arranged between the guide element and the clamping portion of the carrier and is supported in a movably manner relative to the guide element.

[0013] The clamping device can be provided with a moving device that is movable relative to the clamping element and is preferably engaged with the clamping element, the moving device being configured to engage on the pressing surface of the guide element, the clamping element and the guide element being effectively connected via the moving device, so that the movement of the moving device relative to the clamping element, in particular the rotational movement, is converted into the movement of the clamping element along the clamping direction. The moving device is preferably movable through a passage opening of the clamping element.

[0014] The moving device can be configured as a screwable bolt so as to move the clamping element through a threaded opening of the clamping element that is complementary to the bolt design; the end of the bolt away from the bolt head is configured to engage with the clamping surface of the guide element, wherein the engagement of the bolt end on the clamping surface is achieved by screwing the bolt into the threaded opening and converted into movement of the clamping element along the clamping direction.

[0015] The guide element can be arranged in connection with the carrier, in particular in a positionally fixed manner.

[0016] The second end portion may be configured to have another light coupling surface, and the direction of the other light coupling surface is preferably orthogonal to the outer surface of the light guide.

[0017] The clamping portion can be configured in an arc shape, thereby particularly effectively clamping the light guide and pressing the outer surface of the light guide against the clamping portion. After clamping, the outer surface of the light guide can be in close contact with the clamping portion or rest against it.

[0018] The first end of the light guide can be arranged to open into a receptacle of the clamping element, which receptacle has a shape that corresponds to the light guide and which at least partially, preferably completely, surrounds the first end on the circumference.

[0019] The joint portion of the first end of the light guide can be set as a contact surface structure, and the direction of the contact surface is particularly parallel to the optical coupling surface of the first end, wherein the clamping element has an opposing contact surface that can contact the contact surface, and when the contact surface of the first end contacts the opposing contact surface of the clamping element, the movement of the clamping element along the clamping direction is transmitted to the first end of the light guide.

[0020] The clamping portion may be configured to have a contoured wall structure that conforms to the outer surface of the light guide, and is designed such that at most half of the circumference of the outer surface of the light guide is covered by the wall on the circumferential side.

[0021] The optical decoupling surface may be configured to be constructed on a certain section of the outer surface of the light guide body exposed from the clamping portion.

[0022] The carrier may be provided with an optical element, in particular a thick-walled optical system, the optical element having a light entrance surface and a light exit surface, and the optical element is arranged on the carrier such that light decoupled from the light decoupling surface of the light guide is coupled into the optical element through the light entrance surface of the optical element. The light guide or the light of the light guide may be configured together with the optical element to form, for example, a turn signal light or a double flash light.

[0023] The optical element may be arranged on the carrier in such a manner that the light guide body substrate is at least sectionally arranged between the clamping portion and the optical element.

[0024] The carrier can be configured to have a first light source arranged on the carrier, preferably arranged on the clamping portion of the carrier, and the light source is arranged so that light emitted from the light source can be coupled to the light coupling surface of the first end of the light guide, wherein the first light source is preferably arranged to be opposite to the light coupling surface and the distance therefrom is greater than zero.

[0025] The carrier can be configured to have a second light source arranged on the fastening portion of the carrier, wherein the second end of the light guide has another light coupling surface, and the second light source is arranged and configured so that light is coupled into the other light coupling surface of the second end of the light guide, wherein the second light source is preferably arranged to be opposite to the other light coupling surface and the distance therefrom is greater than zero.

[0026] The direction of the first light coupling surface of the first end portion may be arranged to be orthogonal to the outer surface of the light guide body.

[0027] The normal distance between the optical coupling surface of the first end and the clamping portion of the carrier can be set to be greater than zero, wherein the normal distance before the first end is moved by the clamping device is greater than the normal distance after the movement, and the movement method is preferably designed to compensate for the linear expansion of the light guide caused by temperature.

[0028] The invention further relates to a lighting device for a motor vehicle comprising a system, wherein the lighting device comprises, for example, a motor vehicle headlight, a taillight, a brake light or a signal light. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention is explained in more detail below using exemplary drawings. In the drawings:

[0030] Figure 1a A perspective view showing one embodiment of the system of the present invention;

[0031] Figure 1b Another view of the system shown in Figure 1 is shown;

[0032] Figure 2 shows a detailed view of the system described in Figure 1;

[0033] Figure 3 Another detailed view of the system shown in Figure 1 is shown;

[0034] Figure 4 Shows Figure 3 a cross-sectional view of the detailed view; and

[0035] Figure 5 A detailed view of the section BB' shown in FIG. 1 is shown.

[0036] Reference numerals list

[0037] 1 System

[0038] 2 Light guide

[0039] 2a First end portion (of the light guide)

[0040] 2a1 Optical coupling surface (of the first end)

[0041] 2b Second end portion (of the light guide)

[0042] 2b1 Optical coupling surface (of the second end)

[0043] 2c Light guide substrate

[0044] 2c1 Outer surface of light guide

[0045] 2c2 (Light guide body substrate) light decoupling surface

[0046] 3 Carrier

[0047] 3a Clamping part (of carrier)

[0048] 3b Fastening part (of carrier)

[0049] 4 (Carrier) clamping part

[0050] 5 Clamping device

[0051] 6 Clamping element

[0052] 6a Counter contact surface (of the clamping element)

[0053] 7 Joint portion (of the first end portion of the light guide)

[0054] 8 Guide element (of the clamping device)

[0055] 8a Contact surface (of guide element)

[0056] 9 Moving element (= bolt) (of the clamping device)

[0057] 10a First Light Source

[0058] 10b Second light source

[0059] 11 Optical Components

[0060] 11a Light coupling surface (of optical element)

[0061] F Clamping force

[0062] S Clamping direction

[0063] A Clamping force

[0064] B,B' Figure 1a and Figure 5 The section axis in DETAILED DESCRIPTION

[0065] Figure 1a and Figure 1b A system 1 for fastening and clamping a light guide 2 on a carrier 3 is shown.

[0066] The system 1 includes a light guide 2, preferably an optical fiber or a glass fiber, wherein the light guide 2 has a first end 2a, a second end 2b, and a light guide base 2c constructed between the first end 2a and the second end 2b. The light guide base 2c can be designed to be, for example, substantially cylindrical. At least the first end 2a has a light coupling surface 2a1, through which light from a light source can be coupled into the light guide 2. The outer surface 2c1 of the light guide that limits the range of the light guide base 2c is at least segmentally configured as a light decoupling surface 2c2, and the light coupled into the light guide through the light coupling surface 2a1 of the light guide is decoupled through the light decoupling surface. The direction of the first light coupling surface 2a1 of the first end 2a is preferably orthogonal to the outer surface 2c1 of the light guide.

[0067] The system 1 further comprises a carrier 3 with a clamping portion 4, the outer surface 2c1 of the light guide is at least partially located on the clamping portion, and the clamping portion is configured such that the clamping portion 4 at least partially covers the outer surface 2c1 of the light guide located thereon on the circumferential side. The clamping portion 4 can be configured as a profiled wall conforming to the outer surface 2c1 of the light guide, which is designed such that at most half of the circumference of the outer surface 2c1 of the light guide is covered by the wall. Because more than half of the outer surface 2c1 of the light guide is exposed, light can be transmitted thereby, and thus a particularly high luminosity can be achieved. The light decoupling surface 2c2 is preferably configured on a certain section of the outer surface 2c1 of the light guide that is exposed from the clamping portion 4.

[0068] The carrier 3 has a fastening section 3b and a clamping section 3a. The first end 2a of the light guide 2 is movably held on the clamping section 3a. The second end 2b of the light guide is fastened to the fastening section 3b, in particular in a fixed position.

[0069] like Figure 1a As shown, the carrier 3 includes an optical element 11, in particular a double-wall optical system. The optical element 11 is Figure 1b Not shown in the figure.

[0070] The optical element 11 has a light entrance surface 11a and a light exit surface. The optical element is arranged on the carrier 3 so that the light decoupled from the light decoupling surface 2c2 of the light guide 2 is coupled into the optical element through the light entrance surface 11a of the optical element. Thus, a lighting function such as a turn indicator light can be realized. The optical element is arranged on the carrier 3 so that the light guide base 2c is at least sectionally arranged, in particular, its light decoupling surface is arranged between the clamping portion 4 and the optical element.

[0071] The system 1 further comprises a clamping device 5, which is configured to move the first end 2a of the light guide 2 relative to the clamping portion 3a of the carrier 3 along a clamping direction S under the action of a clamping force, so that the light guide 2 is clamped relative to the clamping portion 3a of the carrier 3. During the movement, a normal distance greater than zero between the light coupling surface 2a1 of the first end 2a and the clamping portion 3a of the carrier 3 is reduced. The clamping portion 4 and the clamping portion 3a are designed so that the clamping force F acting on the first end 2a in the direction of the clamping portion 3a is converted into a pressing force A acting on the outer surface 2c1 of the light guide. The pressing force A presses the outer surface 2c1 of the light guide located on the clamping portion 4 toward the clamping portion 4. In the illustrated embodiment, the clamping portion 4 is arc-shaped.

[0072] Figures 2 to 4 A detailed view of the clamping device 5 is shown, and its working principle will now be described in detail based on a specific embodiment. The exemplary clamping device 5 has a clamping element 6 that is linearly movable, preferably supported on the carrier 3 in a linearly movable manner. The clamping element is configured to be engaged in the engagement portion 7 of the first end 2a of the light guide 2. The linear movement of the clamping element 6 is transmitted to the first end 2a by engagement. The first end 2a of the light guide 2 engaged with the clamping element 6 is moved in the direction of the clamping portion 3a of the carrier 3 by the linear movement of the clamping element 6 along the clamping direction S. In particular, the movement is performed simultaneously with the clamping element 6. The clamping element 6 and the first end 2a move substantially with the same length of movement.

[0073] Figure 2 The clamping device 5 is shown without the clamping element 6. The first end 2a is Figure 2 Therefore, it is shown as an exposed state. Figure 3 In the embodiment, the clamping element 6 is arranged on the clamping device 5 according to functional requirements. The state shown is an unclamped state.

[0074] The clamping device 5 may have a guide element 8, in particular a guide channel. The guide element 8 or the guide channel is configured to guide the light guide 2 to move at least in sections along the clamping direction S. The guide element 8 is preferably connected to the carrier 3, in particular in a fixed position. The guide element 8 is designed so that the guided light guide segment is movably clamped on the guide element 8 or passes through the guide element 8. The clamping element 6 is arranged between the guide element 8 and the clamping portion 3a of the carrier 3, and is supported in a movably manner relative to the guide element 8.

[0075] The clamping device 5 comprises a moving device 9 which is movable relative to the clamping element 6. The moving device 9 is preferably engaged with the clamping element 6 or is operatively connected thereto. The moving device 9 is configured to engage on the pressing surface 8a of the guide element 8. In addition, the clamping element 6 and the guide element 8 are operatively connected via the moving device 9, so that the movement of the moving device 9 relative to the clamping element 6, in particular the rotational movement, is converted into the movement of the clamping element 6 along the clamping direction S.

[0076] The moving device 9 is preferably a screwable bolt so as to move the clamping element 6 through the threaded opening of the clamping element 6 which is complementary to the bolt design. The end of the bolt away from the bolt head is configured to engage with the pressure surface 8a of the guide element 8. The engagement of the bolt end on the pressure surface 8a is achieved by screwing the bolt into the threaded opening, and is then converted into a movement of the clamping element 6 along the clamping direction S. Before the bolt end contacts the pressure surface 8a, the bolt is screwed into the threaded opening in the direction opposite to the clamping direction S. Once the bolt contacts the pressure surface 8a, the clamping element 6 is pressed away from the guide element 8 or the pressure surface 8a by continuing to screw in the same screwing direction. This results in the above-mentioned movement of the first end 2a in the direction of the clamping portion 3a.

[0077] The second end portion 2b may have another light coupling surface 2b1, and the direction of the other light coupling surface 2b1 is preferably orthogonal to the outer surface 2c1 of the light guide.

[0078] The first end 2a of the light guide 2 opens into a receptacle of the clamping element 6, which has a shape that matches the light guide 2 (or a shape that matches the first end 2a of the light guide 2). The receptacle surrounds the first end 2a at least partially on the circumference, preferably completely on the circumference.

[0079] The following mechanism (or moving mechanism) of the light guide used in the illustrated embodiment will now be described in detail. Figure 4 (The figure shows Figure 3 Detailed view shown in a horizontal section in the installed position). The joint portion 7 of the first end 2a of the light guide 2 is a contact surface, the direction of which is configured to be particularly parallel to the light coupling surface 2a1 of the first end 2a. The clamping element 6 has an opposing contact surface 6a that can contact the contact surface. When the contact surface of the first end 2a contacts the opposing contact surface 6a of the clamping element 6, the movement of the clamping element 6 along the clamping direction S can be transmitted to the first end 2a of the light guide 2 in a substantially force-locking manner.

[0080] The carrier 3 may have a first light source 10a arranged on the carrier 3, preferably arranged on the clamping portion 3a of the carrier 3, and the light source is arranged so that the light emitted from the light source 10a can be coupled into the light coupling surface 2a1 of the first end 2a of the light guide 2. The first light source 10a may be arranged to be opposite to the light coupling surface 2a1 and the distance is greater than zero. The first light source 10a may also be arranged on a light guide plate configured for actuating the light source, and the light guide plate may be fastened to the carrier 3. The light guide plate and / or the light source may be arranged between the first end 2a and the carrier 3.

[0081] The carrier 3 may have a second light source 10b arranged on the fastening portion 3b of the carrier 3. The second end portion 2b of the light guide 2 has another light coupling surface 2b1, and the second light source 10b is arranged and configured so that light is coupled into the another light coupling surface 2b1 of the second end portion 2b of the light guide (2). The second light source 10b may be arranged to be opposite to the another light coupling surface 2b1 and the distance therebetween is greater than zero.

[0082] The normal distance between the optical coupling surface 2a1 of the first end 2a and the clamping portion 3a of the carrier 3 is greater than zero, wherein the normal distance before the first end 2a is moved by the clamping device 5 is greater than the normal distance after the movement. The movement method can be designed to compensate for the linear expansion of the light guide 2 caused by temperature.

[0083] Figure 5 A detailed view of the BB' section of FIG. 1 is shown. The light guide outer surface 2c1 of the light guide base 2c is located in sections on the circumferential side in the clamping portion 4 of the carrier 3. The light decoupling surface 2c2 of the light guide base 2c faces the light coupling surface 11a of the optical element 11. The optical element 11 is fastened to the carrier 3. The light guide base 2c is thus arranged between the optical element 11 and the clamping portion 4 of the carrier 3.

Claims

1. A system (1) for fastening and clamping a light guide (2) on a carrier (3), comprising: * A light guide (2), preferably an optical fiber, wherein the light guide (2) has a first end (2a), a second end (2b) and a light guide base (2c) constructed between the first end (2a) and the second end (2b); the light guide base (2c) is preferably designed to be substantially cylindrical; at least the first end (2a) has a light coupling surface (2a1), through which light from a light source can be coupled into the light guide (2); an outer surface (2c1) of the light guide limiting the light guide base (2c) is at least segmentally constructed as a light decoupling surface (2c2), through which light coupled into the light guide through the light coupling surface (2a1) of the light guide can be decoupled; * a carrier (3), comprising a clamping portion (4), the outer surface (2c1) of the light guide body (2) being at least partially located on the clamping portion, and the clamping portion being configured such that the clamping portion (4) at least partially covers the outer surface (2c1) of the light guide body located thereon on the circumferential side; the carrier (3) having a fastening portion (3b) and a clamping portion (3a), the first end portion (2a) of the light guide body (2) being movably held on the clamping portion (3a), and the second end portion (2b) of the light guide body being fastened to the fastening portion (3b) in a fixed position; * The clamping device (5) is configured such that, under the action of a clamping force (F), the first end portion (2a) of the light guide (2) moves relative to the clamping portion (3a) of the carrier (3) along a clamping direction (S), thereby clamping the light guide (2) relative to the clamping portion (3a) of the carrier (3); during the movement, a normal distance greater than zero between the optical coupling surface (2a1) of the first end portion (2a) and the clamping portion (3a) of the carrier (3) decreases; the clamping portion (4) and the clamping portion (3a) are designed such that the clamping force (F) acting on the first end portion (2a) in the direction of the clamping portion (3a) is converted into a pressing force (A) acting on the outer surface (2c1) of the light guide, and the outer surface (2c) of the light guide located on the clamping portion (4) is pressed toward the clamping portion (4) by the pressing force.

2. The system according to claim 1, wherein: The clamping device (5) has a linearly movable clamping element (6) preferably supported on the carrier (3) in a linearly movable manner, and the clamping element is configured to be engageable in a coupling portion (7) of the first end portion (2a) of the light guide (2), and the linear movement of the clamping element (6) is transmitted to the first end portion (2a) through coupling, and the first end portion (2a) of the light guide (2) engaged with the clamping element (6) is moved along the clamping portion (3a) of the carrier (3) by the linear movement of the clamping element (6) along the clamping direction (S), and in particular, is moved simultaneously with the clamping element (6), and the clamping element (6) and the first end portion (2a) are preferably moved with the same moving length.

3. The system according to claim 2, wherein: The clamping device (5) has a guide element (8), in particular a guide channel, and the guide element is configured to guide the light guide (2) to move at least in sections along the clamping direction (S). The guide element (8) is preferably designed so that the guided light guide segment is clamped on the guide element (8) in a movable manner, or passes through the guide element (8). The clamping element (6) is arranged between the guide element (8) and the clamping portion (3a) of the carrier (3) and is supported in a movably manner relative to the guide element (8). The guide element (8) is preferably connected to the carrier (3), in particular in a fixed position manner.

4. The system according to claim 3, wherein: The clamping device (5) has a moving device (9) that can move relative to the clamping element (6) and is preferably engaged with the clamping element (6), and the moving device (9) is configured to engage on the pressing surface (8a) of the guide element (8), and the clamping element (6) and the guide element (8) are effectively connected through the moving device (9), so that the movement of the moving device (9) relative to the clamping element (6), especially the rotational movement, is converted into the movement of the clamping element (6) along the clamping direction (S); the moving device (9) is preferably a screwable bolt so as to move the clamping element (6) through the threaded opening of the clamping element (6) that is complementary to the bolt design; the end of the bolt away from the bolt head is configured to be able to engage on the pressing surface (8a) of the guide element (8), wherein the engagement of the bolt end on the pressing surface (8a) is achieved by screwing the bolt into the threaded opening and converted into the movement of the clamping element (6) along the clamping direction.

5. A system according to any one of the preceding claims, wherein: The second end portion (2b) has another light coupling surface (2b1), and the direction of the other light coupling surface (2b1) is preferably orthogonal to the outer surface (2c1) of the light guide.

6. A system according to any one of the preceding claims, wherein: The clamping portion (4) is arc-shaped.

7. A system according to any one of claims 2 to 6, wherein: The first end (2a) of the light guide (2) opens into a receptacle of the clamping element (6), the receptacle having a shape corresponding to the light guide (2) and at least partially, preferably completely surrounding the first end (2a) on the circumference.

8. A system according to any one of claims 2 to 7, wherein: The joint portion (7) of the first end portion (2a) of the light guide (2) is configured as a contact surface, the direction of the contact surface being in particular parallel to the optical coupling surface (2a1) of the first end portion (2a), wherein the clamping element (6) has an opposing contact surface (6a) that can contact the contact surface, and when the contact surface of the first end portion (2a) contacts the opposing contact surface (6a) of the clamping element (6), The movement of the clamping element (6) along the clamping direction (S) is transmitted to the first end (2a) of the light guide (2).

9. A system according to any one of the preceding claims, wherein: The clamping portion (4) is constructed as a molded wall that conforms to the outer surface (2c1) of the light guide, and is designed so that at most half of the circumference of the outer surface (2c1) of the light guide is covered by the wall on the circumferential side; the optical decoupling surface (2c2) is preferably constructed on a certain section of the outer surface (2c1) of the light guide that is exposed from the clamping portion (4).

10. A system according to any one of the preceding claims, wherein: The carrier (3) has an optical element (11), in particular a thick-walled optical system, the optical element having a light entrance surface (11a) and a light exit surface, and the optical element is arranged on the carrier (3) such that light decoupled from the light decoupling surface (2c2) of the light guide (2) is coupled into the optical element through the light entrance surface (11a) of the optical element; the optical element is preferably arranged on the carrier (3) such that the light guide substrate (2c) is at least sectionally arranged between the clamping portion (4) and the optical element.

11. A system according to any one of the preceding claims, wherein: The carrier (3) has a first light source (10a) arranged on the carrier (3), preferably arranged on the clamping portion (3a) of the carrier (3), and the light source is arranged so that light emitted from the light source (10a) can be coupled to the light coupling surface (2a1) of the first end portion (2a) of the light guide (2), wherein the first light source (10a) is preferably arranged to be opposite to the light coupling surface (2a1) and the distance therefrom is greater than zero.

12. A system according to any one of the preceding claims, wherein: The carrier (3) has a second light source (10b) arranged on the fastening portion (3b) of the carrier (3), wherein the second end portion (2b) of the light guide (2) has another light coupling surface (2b1), and the second light source (10b) is arranged and configured so that light is coupled into the other light coupling surface (2b1) of the second end portion (2b) of the light guide (2), wherein the second light source (10b) is preferably arranged to be opposite to the other light coupling surface (2b1) and the distance therefrom is greater than zero.

13. A system according to any one of the preceding claims, wherein: The direction of the first light coupling surface (2a1) of the first end portion (2a) is orthogonal to the outer surface (2c1) of the light guide body.

14. A system according to any one of the preceding claims, wherein: The normal distance between the optical coupling surface (2a1) of the first end (2a) and the clamping portion (3a) of the carrier (3) is greater than zero, wherein before the first end (2a) is moved by the clamping device (5), The normal distance is greater than the normal distance after the movement, and the movement method is preferably designed to compensate for the linear expansion of the light guide (2) caused by temperature.

15. A lighting device for a motor vehicle comprising a system (1) according to any one of claims 1 to 14, wherein: The lighting device can be designed, for example, as a motor vehicle headlight, taillight, brake light or signal light, wherein the lighting device has a light source to realize a light function, and the light source includes the light guide of the system (1).

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