System for fastening and clamping a light guide to a carrier element

Abstract

A device (1) for fixing and clamping a light guide (2) to a carrier element (3), wherein the device * Includes a light guide (2), wherein the light guide (2) has a first end section (2a), a second end section (2b), and a light guide body (2c) formed between the first end section (2a) and the second end section (2b). * Includes a carrier element (3), wherein the light guide body (2c) is seated on the carrier element at least in sections, and * A clamping device (5) is included, wherein the clamping device is installed to displace the first end section (2a) of the light guide (2) relative to the carrier element (3) along the clamping direction (S), thereby clamping the light guide (2) relative to the carrier element (3), and during the displacement, the normal distance between the carrier element (3) and the optical coupling surface (2a1) of the first end section (2a) is reduced.

Description

Technology Field

[0001] The present invention relates to a device for fixing and clamping an optical guide to a carrier element.

[0002] The present invention also relates to an automotive lighting device comprising a device for fixing and clamping a light guide to a carrier element. Background Technology

[0003] In the prior art, fixing devices for securing optical guides are known. In this case, the optical guide is generally pressed into a groove having a shape corresponding to the optical guide. However, in this case, to secure the optical guide in the groove, the lateral surface of the optical guide must be enclosed by more than 50% on the circumferential side. This has the disadvantage of reducing the amount of emitted light. Alternatively, optical guides in the prior art are clamped between two parts, in which case one of the two parts is often formed transparently. However, this has the disadvantage of requiring two parts for fixation. Furthermore, known devices do not provide a solution for clamping the optical guide. That is, in known devices, the optical guide must always be clamped using a separate clamping device. The problem to be solved

[0004] The objective of the present invention is to mitigate or eliminate the disadvantages of the prior art. Accordingly, the present invention provides an improved device, in particular, for fixing and clamping an optical guide.

[0005] The above problem is solved by an apparatus having the features of claim 1. Preferred embodiments are presented in dependent claims. means of solving the problem

[0006] According to the present invention, the device

[0007] * A light guide, preferably comprising an optical fiber, wherein the light guide has a first end section, a second end section, and a light guide body formed between the first end section and the second end section, preferably the light guide body is formed substantially cylindrically, and at least the first end section has an optical coupling surface to which light from a light source can be coupled to the light guide, and the light guide side limiting the light guide body is formed as an optical decoupling surface at least by section, and through this optical decoupling surface, the light coupled to the light guide by the optical coupling surface can be separated, and

[0008] * A carrier element is included, wherein the carrier element includes a support section on which the optical guide side is seated at least section by section, and the support section is designed such that the optical guide side on which is seated is at least partially surrounded by the support section on the circumferential side, and the carrier element has a fixed section and a clamping section, wherein a first end section of the optical guide is displaceably held in the clamping section, and a second end section of the optical guide is particularly fixed to the fixed section in a stationary manner, and

[0009] * A clamping device is included, wherein the clamping device is installed such that the first end section of the light guide is displaced relative to the clamping section of the carrier element along the clamping direction by the action of a clamping force, thereby the light guide is clamped relative to the clamping section of the carrier element, and during displacement, the normal distance greater than 0 between the clamping section of the carrier element and the optical coupling surface of the first end section is reduced, and the support section and the clamping section are designed such that a compressive force is applied to the side of the light guide by the clamping force acting on the first end section in the direction of the clamping section, and by this compressive force, the side of the light guide that is seated on the support section is in close contact with the support section.

[0010] This provides the advantage that, on one hand, the optical guide is fixed to the support section, and at the same time, the distance between the optical coupling surface of the optical guide and the clamping section of the carrier element can be adjusted by the clamping device. By means of a clamping force, the optical guide or the side of the optical guide can be fixed to the support section.

[0011] The clamping device may have a clamping element that is linearly displaceable, preferably supported on a carrier element so as to be linearly displaceable, and the clamping element is installed to engage with a coupling section of a first end of a light guide, and through this coupling, the linear displacement of the clamping element is transmitted to the first end section, and in this case, the first end section of the light guide coupled with the clamping element is displaced in the direction of the clamping section of the carrier element, particularly simultaneously with the clamping element, by the linear displacement of the clamping element along the clamping direction, and preferably, the clamping element and the first end section are displaced by the same displacement length.

[0012] The clamping device comprises a guide element, in particular a guide channel, and the guide element may be installed to guide an optical guide along a clamping direction at least section by section, wherein, preferably, the guide element is designed so that the guided optical guide section is displaceably maintained on or through the guide element, and the clamping element is positioned between the guide element and the clamping section of the carrier element and is displaceably supported relative to the guide element.

[0013] The clamping device may have a displacement means that is movable relative to a clamping element and preferably engages with said clamping element, wherein the displacement means is installed to engage with the compression surface of a guide element, and the clamping element is functionally connected to the guide element through the displacement means so that movement, particularly rotation, of the displacement means relative to the clamping element along the clamping direction is converted into a displacement of the clamping element. The displacement means may preferably be movable through a through opening of the clamping element.

[0014] The displacement means is a screw that can be tightened through a threaded opening of a clamping element designed complementarily to the screw for the displacement of the clamping element, wherein the screw end facing away from the screw head is designed to engage with the compression surface of the guide element, and the engagement of the screw end with the compression surface is induced by tightening the screw in the threaded opening and can be converted into a displacement of the clamping element along the clamping direction.

[0015] In particular, guide elements can be connected to carrier elements in a political manner.

[0016] The second end section may have an additional optical coupling surface, in which case, preferably, the additional optical coupling surface is oriented orthogonally to the side of the optical guide.

[0017] The support section may have a convex shape. This allows the optical guide to be clamped, or the side of the optical guide to be pressed particularly efficiently against the support section through such clamping. After clamping, the side of the optical guide may follow the support section or be fixedly adjacent to it.

[0018] A first end section of the light guide is open to a receiving section of a clamping element, in which case the receiving section has a shape corresponding to the light guide, and in which case the receiving section can at least partially, preferably completely, surround the first end section on the circumferential side.

[0019] The engaging section of the first end section of the optical guide is formed as a contact surface oriented parallel to the optical coupling surface of the first end section, in particular, and in this case, the clamping element has a counter contact surface that can contact the contact surface, and when the contact surface of the first end section contacts the counter contact surface of the clamping element, the displacement of the clamping element along the clamping direction can be transmitted to the first end section of the optical guide.

[0020] The support section is formed as a wall corresponding to the side of the light guide, and this wall can be formed such that up to half of the circumference of the side of the light guide is surrounded by the wall on the circumference side.

[0021] The optical decoupling surface can be formed on a section of the optical guide side exposed from the support section.

[0022] The carrier element may be provided with an optical element, specifically a thick-walled optical means having a light input surface and a light output surface, and the optical element may be positioned in the carrier element in such a manner that light separated from the light decoupling surface of the light guide is coupled to the optical element through the light input surface of the optical element. The light guide or the light of the light guide may, together with the optical element, form, for example, a directional indicator or a warning light.

[0023] The optical element can be placed on the carrier element in such a way that the optical guide body is positioned between the support section and the optical element at least section by section.

[0024] A carrier element is provided with a first light source, and the first light source may be disposed in the carrier element, preferably in the clamping section of the carrier element, so that light emitted from the light source can be coupled to the optical coupling surface of the first end section of the light guide, in which case, preferably, the first light source is disposed at a distance greater than 0 on the opposite side of the optical coupling surface.

[0025] The carrier element may have a second light source disposed in a fixed section of the carrier element, in which case the second end section of the light guide has an additional light coupling surface, and the second light source is disposed and installed to combine light with the additional light coupling surface of the second end section of the light guide, in which case, preferably, the second light source is disposed on the opposite side of the additional light coupling surface at a distance greater than 0.

[0026] The first optical coupling surface of the first end section may be provided to be oriented orthogonally to the optical guide side.

[0027] The normal distance between the clamping section of the carrier element and the optical coupling surface of the first end section is greater than 0, and the normal distance before displacement of the first end section by the clamping device may be greater than after displacement, and preferably, such displacement is corrected for linear expansion of the optical guide related to temperature.

[0028] According to the present invention, an automotive lighting device is additionally provided, comprising, for example, a device including an automotive headlight, taillight, brake light, or signal light. Brief explanation of the drawing

[0029] The present invention is described in more detail below with reference to exemplary drawings. In the drawings: FIG. 1a illustrates a perspective view of one embodiment of a device according to the present invention; FIG. 1b illustrates an additional drawing of the device according to FIG. 1; FIG. 2 illustrates a detailed view of the device according to FIG. 1; FIG. 3 illustrates an additional detailed view of the device according to FIG. 1; FIG. 4 illustrates a cross-sectional view of the detail according to FIG. 3; and Figure 5 shows a detailed view of section B-B' of Figure 1. Specific details for implementing the invention

[0030] do 1a and 1b is A device (1) for fixing and clamping each light guide (2) to a carrier element (3) is illustrated.

[0031] The above device (1) comprises a light guide (2), preferably an optical fiber or a glass fiber, wherein the light guide (2) has a first end section (2a), a second end section (2b), and a light guide body (2c) formed between the first end section (2a) and the second end section (2b). For example, the light guide body (2c) may be formed substantially cylindrically. At least the first end section (2a) has a light coupling surface (2a1) through which light from a light source can be coupled to the light guide (2). The light guide side (2c1) that limits the light guide body (2c) is formed as a light decoupling surface (2c2) at least by section, through which the light coupled to the light guide by the light coupling surface (2a1) can be separated. The first optical coupling surface (2a1) of the first end section (2a) is preferably oriented orthogonally to the guide side (2c1).

[0032] The above device (1) further comprises a carrier element (3) having a support section (4) on which the light guide side (2c1) is seated, at least in sections, and the support section is designed such that the light guide side (2c1) on which it is seated is at least partially surrounded by the support section (4) on the circumferential side. The support section (4) may be formed as a wall formed to correspond to the light guide side (2c1), and the wall is designed such that up to half of the circumferential side of the light guide side (2c1) is surrounded by the wall on the circumferential side. This allows more than half of the light guide side (2c1) to be exposed to emit light, thereby enabling particularly high light intensity to be achieved. The light decoupling surface (2c2) is preferably formed on one section of the light guide side (2c1) exposed from the support section (4).

[0033] The carrier element (3) has a fixed section (3b) and a clamping section (3a). The first end section (2a) of the light guide (2) is displaceably held in the clamping section (3a). The second end section (2b) of the light guide is, in particular, fixed to the fixed section (3b) in a stationary manner.

[0034] In FIG. 1a, the carrier element (3) includes an optical element (11), particularly a thick-walled optical means. In FIG. 1b, the optical element (11) is not shown.

[0035] The optical element (11) has a light input surface (11a) and a light output surface. The optical element is positioned in the carrier element (3) in such a way that light separated from the light decoupling surface (2c2) of the light guide (2) is coupled to the optical element through the light input surface (11a) of the optical element. This allows, for example, a lighting function of a turn signal to be implemented. The optical element is positioned in the carrier element (3) such that the light guide body (2c) is positioned at least in sections, particularly such that the light decoupling surface of the light guide is positioned between the support section (4) and the optical element.

[0036] The above device (1) further includes a clamping device (5), which is installed to displace the first end section (2a) of the light guide (2) relative to the clamping section (3a) of the carrier element (3) along the clamping direction (S) by the action of a clamping force (F). Through this, the light guide (2) is clamped relative to the clamping section (3a) of the carrier element (3). During displacement, the normal distance greater than 0 between the clamping section (3a) of the carrier element (3) and the optical coupling surface (2a1) of the first end section (2a) is reduced. The support section (4) and the clamping section (3a) are designed such that a compressive force (A) is applied to the side (2c1) of the light guide by the clamping force (F) acting on the first end section (2a) in the direction of the clamping section (3a). Due to this compressive force (A), the light guide side (2c) seated on the support section (4) is pressed against the support section (4). In the illustrated embodiment, the support section (4) has a convex shape.

[0037] Fig. 2 inner figure 4 isA detailed view of the clamping device (5) is shown, and the operating mode of the clamping device is now described in more detail with reference to the embodiment. An exemplary clamping device (5) has a clamping element (6) that is linearly displaceable, preferably supported linearly displaceably on a carrier element (3). This clamping element is installed to be coupled to the engaging section (7) of the first end section (2a) of the light guide (2). By this coupling, the linear displacement of the clamping element (6) is transmitted to the first end section (2a). Due to the linear displacement of the clamping element (6) along the clamping direction (S), the first end section (2a) of the light guide (2), which is engaged with the clamping element (6), can be displaced in the direction of the clamping section (3a) of the carrier element (3). This displacement occurs, in particular, simultaneously with the displacement of the clamping element (6). The clamping element (6) and the first end section (2a) are displaced by substantially the same length of displacement.

[0038] In FIG. 2, the clamping device (5) is shown without the clamping element (6). Therefore, in FIG. 2, the first end section (2a) is shown exposed. In FIG. 3, the clamping element (6) is positioned on the clamping device (5) according to its function. Each is shown in an unclamped state.

[0039] The clamping device (5) may have a guide element (8), in particular a guide channel. The guide element (8) or guide channel is installed to guide the optical guide (2) along the clamping direction (S) at least section by section. Preferably, the guide element (8) is connected to the carrier element (3) in a stationary manner. To this end, the guide element (8) is designed such that the guided optical guide section is displaceably held in the guide element (8) or through the guide element (8). The clamping element (6) is positioned between the guide element (8) and the clamping section (3a) of the carrier element (3) and is displaceably supported relative to the guide element (8).

[0040] The clamping device (5) includes a displacement means (9) that can move relative to the clamping element (6). Preferably, the displacement means (9) is engaged with or functionally connected to the clamping element (6). The displacement means (9) is installed to engage with the compression surface (8a) of the guide element (8). Additionally, the clamping element (6) is functionally connected to the guide element (8) through the displacement means (9) in such a way that movement, particularly rotation, of the displacement means (9) relative to the clamping element (6) is converted into a displacement of the clamping element (6) along the clamping direction (S).

[0041] Preferably, the displacement means (9) is a screw, and this screw can be tightened through a threaded opening of the clamping element (6) designed complementarily to the screw for the displacement of the clamping element (6). The screw end facing away from the screw head is designed to engage with the compression surface (8a) of the guide element (8). When the screw is tightened into the threaded opening, engagement of the screw end with the compression surface (8a) is induced and subsequently converted into displacement of the clamping element (6) along the clamping direction (S). The screw is tightened into the threaded opening in the opposite direction to the clamping direction (S) until the screw end contacts the compression surface (8a). As soon as the screw contacts the compression surface (8a), further tightening the screw in the same direction causes the clamping element (6) to be pushed away from the guide element (8) or the compression surface (8a). As a result, the first end section (2a) is displaced in the direction of the clamping section (3a) as described above.

[0042] The second end section (2b) may have an additional optical coupling surface (2b1), in which case, preferably, the additional optical coupling surface (2b1) is oriented orthogonally to the optical guide side (2c1).

[0043] The first end section (2a) of the light guide (2) is open to a receiving section of the clamping element (6), in which case the receiving section has a shape corresponding to the light guide (2) (or the first end section (2a) of the light guide (2). The receiving section surrounds the first end section (2a) at least partially, preferably completely, on the circumferential side.

[0044] Now, the driven mechanism (or displacement mechanism) of the light guide used in the illustrated embodiment is described in more detail. Details can be seen in FIG. 4 (which shows a horizontal cross-section of the detail view shown in FIG. 3 at the installation location). The engaging section (7) of the first end section (2a) of the light guide (2) is formed as a contact surface, which is oriented particularly parallel to the optical coupling surface (2a1) of the first end section (2a). The clamping element (6) has a counter contact surface (6a) that can contact the contact surface. When the contact surface of the first end section (2a) contacts the counter contact surface (6a) of the clamping element (6), the displacement of the clamping element (6) along the clamping direction (S) can be transmitted to the first end section (2a) of the light guide (2) by substantially frictional coupling.

[0045] The carrier element (3) may have a first light source (10a), and the first light source is positioned in the carrier element (3), preferably in the clamping section (3a) of the carrier element (3), so that light emitted from the light source (10a) can be coupled to the optical coupling surface (2a1) of the first end section (2a) of the light guide (2). The first light source (10a) may be positioned at a distance greater than 0 on the opposite side of the optical coupling surface (2a1). The first light source (10a) may also be positioned on a printed circuit board formed to control the light source, in which case the printed circuit board may be fixed to the carrier element (3). The printed circuit board and / or the light source may be positioned between the first end section (2a) and the carrier element (3).

[0046] The carrier element (3) may have a second light source (10b) disposed in a fixed section (3b) of the carrier element (3). The second end section (2b) of the light guide (2) may have an additional light coupling surface (2b1), in which case the second light source (10b) may be disposed and installed to combine light with the additional light coupling surface (2b1) of the second end section (2b) of the light guide (2). The second light source (10b) may be disposed at a distance greater than 0 on the opposite side of the additional light coupling surface (2b1).

[0047] The normal distance between the clamping section (3a) of the carrier element (3) and the optical coupling surface (2a1) of the first end section (2a) is greater than 0, in which case the normal distance before displacement of the first end section (2a) by the clamping device (5) is greater than after displacement. This displacement can be corrected for linear expansion of the optical guide (2) related to temperature.

[0048] do 5 In do A detailed view of section B-B' of 1 is shown. The light guide side (2c1) of the light guide body (2c) is seated on the support section (4) of the carrier element (3) on the circumferential side. The light decoupling surface (2c2) of the light guide body (2c) faces the light coupling surface (11a) of the optical element (11) apart from it. The optical element (11) is fixed to the carrier element (3). Thus, the light guide body (2c) is positioned between the optical element (11) and the support section (4) of the carrier element (3). Explanation of the symbols

[0049] 1: Device 2: Optical Guide 2a: First end section (of the optical guide) 2a1: Optical coupling surface (of the first end section) 2b: Second end section (of the optical guide) 2b1: Optical coupling surface (of the second end section) 2c: Optical guide body 2c1: Optical guide side 2c2: Optical decoupling surface (of the optical guide body) 3: Carrier Element 3a: Clamping section (of the carrier element) 3b: Fixed section (of the carrier element) 4: Support section (of the carrier element) 5: Clamping device 6: Clamping element 6a: Counter contact surface (of the clamping element) 7: Interlocking section (of the first end section of the optical guide) 8: Guide element (of the clamping device) 8a: Compression surface (of the guide element) 9: Displacement means (= screw) (of the clamping device) 10a: First light source 10b: Second light source 11: Optical element 11a: Optical coupling surface (of an optical element) F: Clamping force S: Clamping direction A: Compression force B,B': Axes of the sections in Fig. 1a and Fig. 5

Claims

Claim 1 A device (1) for fixing and clamping a light guide (2) to a carrier element (3),* comprising a light guide (2), wherein the light guide (2) has a first end section (2a), a second end section (2b), and a light guide body (2c) formed between the first end section (2a) and the second end section (2b), wherein at least the first end section (2a) has a light coupling surface (2a1) through which light from a light source can be coupled to the light guide (2), and a light guide side (2c1) that limits the light guide body (2c) is formed as a light decoupling surface (2c2) for at least each section, and through this light decoupling surface, the light coupled to the light guide by the light coupling surface (2a1) can be separated,* comprising a carrier element (3), wherein the carrier element has a support section (4) on which the light guide side (2c1) is seated for at least each section The support section is designed such that the side (2c1) of the light guide to be seated is at least partially surrounded by the support section (4) on the circumferential side, and the carrier element (3) has a fixed section (3b) and a clamping section (3a), the first end section (2a) of the light guide (2) is displaceably held in the clamping section (3a), and the second end section (2b) of the light guide is fixed in a stationary manner to the fixed section (3b), and includes a clamping device (5), the clamping device is installed such that the first end section (2a) of the light guide (2) is displaced relative to the clamping section (3a) of the carrier element (3) along the clamping direction (S) by the action of a clamping force (F), thereby the light guide (2) is clamped relative to the clamping section (3a) of the carrier element (3), and during displacement the carrier The normal distance greater than 0 between the clamping section (3a) of the element (3) and the optical coupling surface (2a1) of the first end section (2a) is reduced, andThe above support section (4) and the above clamping section (3a) are designed such that a compressive force (A) is applied to the light guide side (2c1) by a clamping force (F) acting on the first end section (2a) in the direction of the clamping section (3a), and by this compressive force, the light guide side (2c) seated on the support section (4) is in close contact with the support section (4). Claim 2 In claim 1, the light guide (2) includes a light guide body (2c) formed between the first end section (2a) and the second end section (2b), and the light guide body (2c) is configured in a cylindrical shape. Claim 3 A device according to claim 1, wherein the clamping device (5) has a clamping element (6) that is linearly displaceable and is linearly displaceable and is supported on the carrier element (3), and the clamping element is installed to be coupled to the engaging section (7) of the first end section (2a) of the light guide (2), and by such coupling, the linear displacement of the clamping element (6) is transmitted to the first end section (2a), and by the linear displacement of the clamping element (6) along the clamping direction (S), the first end section (2a) of the light guide (2) engaged with the clamping element (6) is displaced in the direction of the clamping section (3a) of the carrier element (3) simultaneously with the clamping element (6), and the clamping element (6) and the first end section (2a) are displaced by the same displacement length. Claim 4 In paragraph 3, the clamping device (5) has a guide element (8), the guide element is installed to guide the light guide (2) along the clamping direction (S) at least section by section, the guide element (8) maintains the guided light guide section displaceably on or through the guide element (8), the clamping element (6) is disposed between the guide element (8) and the clamping section (3a) of the carrier element (3) and is displaceably supported with respect to the guide element (8), and the guide element (8) is connected to the carrier element (3) in a stationary manner. Claim 5 In paragraph 4, the clamping device (5) has a displacement means (9), the displacement means is movable relative to the clamping element (6) and is coupled to the clamping element (6), the displacement means (9) is installed to engage with the compression surface (8a) of the guide element (8), and the clamping element (6) is functionally connected to the guide element (8) through the displacement means (9) in such a way that the movement of the displacement means (9) relative to the clamping element (6) is converted into a displacement of the clamping element (6) along the clamping direction (S), the displacement means (9) is a screw, and the screw can be tightened through a thread opening of the clamping element (6) designed complementarily to the screw for the displacement of the clamping element (6), and the screw end facing away from the screw head of the screw is designed to engage with the compression surface (8a) of the guide element (8). A device having, wherein the engagement of the screw end with the compression surface (8a) is induced by tightening the screw in the screw thread opening and converted into a displacement of the clamping element (6) along the clamping direction. Claim 6 A device according to claim 1, wherein the second end section (2b) has an additional optical coupling surface (2b1), and the additional optical coupling surface (2b1) is oriented orthogonally to the optical guide side (2c1). Claim 7 A device according to claim 1, wherein the support section (4) has a convex shape. Claim 8 A device according to paragraph 3, wherein the first end section (2a) of the light guide (2) is open to the receiving section of the clamping element (6), the receiving section has a shape corresponding to the light guide (2), and the receiving section completely surrounds the first end section (2a) at least partially on the circumferential side. Claim 9 A device according to claim 3, wherein the engaging section (7) of the first end section (2a) of the light guide (2) is formed as a contact surface oriented parallel to the optical coupling surface (2a1) of the first end section (2a), and the clamping element (6) has a counter contact surface (6a) capable of contacting the contact surface, and when the contact surface of the first end section (2a) contacts the counter contact surface (6a) of the clamping element (6), the displacement of the clamping element (6) is transmitted to the first end section (2a) of the light guide (2) along the clamping direction (S). Claim 10 In claim 1, the support section (4) is formed as a wall formed to correspond to the light guide side (2c1), and the wall is designed such that up to half of the circumference of the light guide side (2c1) is surrounded by the wall on the circumference side, and the light decoupling surface (2c2) is formed on a section of the light guide side (2c1) exposed from the support section (4). Claim 11 A device according to claim 1, wherein the carrier element (3) has an optical element (11) having a light input surface (11a) and a light output surface, and a thick-walled optical element, wherein the optical element is disposed in the carrier element (3) in such a way that light separated from the light decoupling surface (2c2) of the light guide (2) is coupled to the optical element through the light input surface (11a) of the optical element, and the optical element is disposed in the carrier element (3) in such a way that the light guide body (2c) is disposed in the section between the support section (4) and the optical element in at least section by section. Claim 12 A device according to claim 1, wherein the carrier element (3) has a first light source (10a), the first light source is disposed in the carrier element (3) such that light emitted from the light source (10a) can be coupled to the optical coupling surface (2a1) of the first end section (2a) of the optical guide (2), and the first light source (10a) is disposed at a distance greater than 0 on the opposite side of the optical coupling surface (2a1). Claim 13 A device according to claim 1, wherein the carrier element (3) has a second light source (10b), the second light source is positioned in a fixed section (3b) of the carrier element (3), the second end section (2b) of the light guide (2) has an additional light coupling surface (2b1), the second light source (10b) is installed to combine light with the additional light coupling surface (2b1) of the second end section (2b) of the light guide (2), and the second light source (10b) is positioned at a distance greater than 0 on the opposite side of the additional light coupling surface (2b1). Claim 14 A device according to claim 1, wherein the first optical coupling surface (2a1) of the first end section (2a) is oriented orthogonally to the optical guide side (2c1). Claim 15 A device according to claim 1, wherein the normal distance between the clamping section (3a) of the carrier element (3) and the optical coupling surface (2a1) of the first end section (2a) is greater than 0, the normal distance before displacement of the first end section (2a) by the clamping device (5) is greater than the distance after displacement, and the displacement is a method in which the linear expansion of the optical guide (2) related to temperature is corrected. Claim 16 A lighting device for an automobile comprising a device (1) according to any one of claims 1 to 15, wherein the lighting device is designed as an automobile headlight, taillight, brake light or signal light, and the lighting device has a light source to form a light function, and the light source includes a light guide of the device (1).

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