Vehicular illumination structure

Abstract

To provide a vehicular illumination structure that is capable of suppressing deterioration in tactile sensation.SOLUTION: A vehicular illumination structure 100 includes: a light source 40; an interior material 10 having a surface directed to a vehicle cabin inside; and an optical fiber 30 of which one end comprises light incident parts 31A, 32A where light from the light source 40 is incident, and of which the other end comprises light emission parts 31B, 32B that emit light from the light source 40. The interior material 10 includes: holes 15, 16 penetrating in a vehicle cabin inside-outside direction; and light-transmissive adhesive materials 21, 22 covering the holes 15, 16 from a rear surface side while adhering to edge parts 15B, 16B on the rear surface side of the holes 15, 16. The light emission parts 31B, 32B are adhered to the adhesive materials 21, 22 from a vehicle cabin outside.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to vehicle lighting structures. [Background technology]

[0002] Conventionally, the technology described in Patent Document 1 has been known as a vehicle lighting structure. Specifically, the vehicle lighting structure (vehicle interior lighting) described in Patent Document 1 includes a plurality of openings formed penetrating a plate material in the interior and exterior directions of the vehicle, a plurality of light guides inserted into each of the plurality of openings, and a light source to which one ends of the plurality of light guides are connected. The light guides are inserted into the openings with the other ends being flush with the interior side surface of the plate material. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] DE 102006002336 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the configuration disclosed in Patent Document 1, when touching the plate material, touching the periphery of the other end of the optical fiber (light guide) may cause a foreign body sensation. In addition, there is a risk that the other end of the optical fiber may come into contact with an object and be damaged. Furthermore, in a structure in which a single light source illuminates the interior of a vehicle through multiple optical fibers, the illumination pattern of the multiple optical fibers tends to be uniform. In addition, when the other end of the optical fiber is inserted into an opening for installation, it is necessary to adjust the direction and position for inserting the other end, which places a burden on the worker performing the installation work.

[0005] The present disclosure is a technology completed based on the above circumstances, and has an object to provide a vehicle lighting structure capable of suppressing a decrease in tactile sensation. Another object is to provide a vehicle lighting structure capable of suppressing damage to optical fibers. Another object is to provide a vehicle lighting structure capable of improving design. Another object is to provide a vehicle lighting structure capable of reducing the burden on workers involved in installation. [Means for solving the problem]

[0006] The present disclosure relates to a vehicle lighting structure comprising: a light source; an interior material having a surface facing the inside of the vehicle cabin; and an optical fiber having one end serving as a light entrance portion for receiving light from the light source and the other end serving as a light exit portion for exiting light from the light source, wherein the interior material comprises a hole portion penetrating in a direction from inside to outside the vehicle cabin; and a light-transmitting adhesive that covers the hole portion from the back side while adhering to the edge of the back side of the hole portion, and wherein the light exit portion is adhered to the adhesive from the outside of the vehicle cabin. Effect of the Invention

[0007] According to the present disclosure, it is possible to provide a vehicle lighting structure capable of suppressing a decrease in tactile sensation. It is also possible to provide a vehicle lighting structure capable of suppressing damage to optical fibers. It is also possible to provide a vehicle lighting structure capable of improving design. It is also possible to provide a vehicle lighting structure capable of reducing the burden on workers involved in installation. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is an explanatory diagram showing a lighting structure according to a first embodiment; [Diagram 2] Enlarged view showing the light output area of ​​the first optical fiber [Diagram 3] An enlarged view showing a process of cutting a part of the other end of the first optical fiber. [Figure 4] FIG. 13 is an enlarged view showing the periphery of a light emitting portion of an optical fiber according to a second embodiment. [Diagram 5]FIG. 13 is an enlarged view showing the periphery of a light emitting portion of an optical fiber according to another embodiment; [Figure 6] FIG. 13 is an enlarged view showing the periphery of a light emitting portion of an optical fiber according to another embodiment; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] First, embodiments of the present disclosure will be listed and described. (1) The vehicle lighting structure disclosed herein comprises a light source, an interior material having a surface facing the inside of the vehicle cabin, and an optical fiber having one end serving as a light entrance portion for receiving light from the light source and the other end serving as a light exit portion for exiting light from the light source, wherein the interior material comprises a hole portion penetrating from the inside to the outside of the vehicle cabin, and a light-transmitting adhesive that is adhered to the edge of the back side of the hole portion while covering the hole portion from the back side, and wherein the light exit portion is adhered to the adhesive from the outside of the vehicle cabin.

[0010] (2) In the vehicle lighting structure described in (1), the light emitting portion may be arranged so that the edge portion is located in an axial direction of the optical fiber.

[0011] (3) In the vehicle lighting structure described in (1) or (2), the light emitting portion may be bonded to the adhesive in a manner inclined with respect to a penetrating direction of the hole portion.

[0012] (4) In the vehicle lighting structure described in any one of (1) to (3), the light output portion may have an interior and an exterior arranged outside the interior and having a higher adhesive strength to the adhesive than the interior.

[0013] (5) In the vehicle lighting structure described in (4), a fiber material or a tape material may be added to the exterior of the light emitting portion.

[0014] (6) In the vehicle lighting structure described in (4), the exterior of the light emitting portion may be coated with a coating or a powder material.

[0015] (7) In the vehicle lighting structure described in any one of (1) to (6), the interior material may include a first part and a second part arranged at a position closer to the outside of the vehicle cabin than the first part, the hole part may include a first hole part formed through the first part and a second hole part formed through the second part, the adhesive may include a first adhesive bonded to a first edge part on a back side of the first hole part and a second adhesive bonded to a second edge part on a back side of the second hole part, and the optical fiber may include a first optical fiber having the other end bonded to the first adhesive and a second optical fiber having the other end bonded to the second adhesive.

[0016] <Embodiment 1> A first embodiment of the present disclosure will be described with reference to Fig. 1 and the like. In this embodiment, a lighting structure (vehicle lighting structure) 100 mounted on an automobile (vehicle) as a vehicle will be described. In each figure, the upper side of the paper corresponds to the outside of the vehicle cabin (outside of the vehicle cabin), and the lower side of the paper corresponds to the inside of the vehicle cabin (inside of the vehicle cabin).

[0017] As shown in FIG. 1, the lighting structure 100 includes an interior material 10 as a ceiling material constituting the ceiling of the vehicle interior, and a light source 40 and an optical fiber 30 arranged on the exterior side of the interior material 10. The interior material 10 is in the form of a plate extending in the front-rear direction and the vehicle width direction. The interior material 10 has a front surface (design surface) 10A that faces the interior side of the vehicle interior, and a back surface 10B that faces the exterior side of the vehicle interior. The interior material 10 includes a base material 11 that constitutes the majority of the interior material, and a skin 12 that is attached to the interior side of the base material 11. The material of the base material 11 is not particularly limited, but may be, for example, a material containing a thermoplastic resin, or a material containing a thermoplastic resin and a vegetable fiber. The material of the skin 12 is not particularly limited, but may be, for example, a fiber material such as a woven fabric or a nonwoven fabric, or a material such as natural leather or synthetic leather. The shape and layer structure of the interior material 10 can be appropriately changed, and may be, for example, a configuration of only the base material 1 without the skin 12.

[0018] The interior material 10 includes a general portion (first portion) 13 and an outer portion (second portion) 14 disposed at a position closer to the vehicle interior than the general portion 13. The interior material 10 also includes a plurality of holes 15, 16, 17 penetrating the interior material 10 in the thickness direction of the interior material 10, that is, in the interior and exterior direction of the vehicle. The plurality of holes 15, 16, 17 include a first hole 15 and a third hole 17 penetrating the general portion 13, and a second hole 16 penetrating the outer portion 14. The second hole 16 is disposed at a position closer to a light source 40 (described later) than the first hole 15. The third hole 17 is disposed at a position farther from the light source 40 than the first hole 15. Each of the holes 15, 16, 17 forms a cylindrical space with the height direction being the interior and exterior direction of the vehicle. In each of the holes 15, 16, 17, the edge portions 15A, 16A, 17A on the front side are portions that open to the interior of the vehicle compartment, and the edge portions 15B, 16B, 17B on the back side are portions that open to the exterior of the vehicle compartment.

[0019] The interior material 10 also includes a plurality of adhesives 21, 22, 23 that adhere to the edge portions 15B, 16B, 17B on the back side of the holes 15, 16, 17 and cover the holes 15, 16, 17 from the back side. The adhesives 21, 22, 23 close the openings formed by the edge portions 15B, 16B, 17B. The adhesives 21, 22, 23 are dome-shaped (hemispherical) with the edge portions 15B, 16B, 17B facing downward. The adhesives 21, 22, 23 include a first adhesive 21 adhered to the edge portion 15B on the back side of the first hole 15, a second adhesive 22 adhered to the edge portion 16B on the back side of the second hole 16, and a third adhesive 23 adhered to the edge portion 17B on the back side of the third hole 17.

[0020] The adhesives 21, 22, and 23 are not particularly limited as long as they are optically transparent (light transmittance at least exceeds 0%), and for example, transparent, opaque, colored, etc. can be used. The material of such adhesives 21, 22, and 23 is not particularly limited, and for example, one or more types from the group consisting of solvent volatilization type adhesives (vinyl acetate type, nitrile rubber type, etc.) that harden when the solvent volatilizes, moisture curing type adhesives (cyanoacrylate type, urethane resin type, etc.) that harden by reacting with moisture, and thermoplastic type adhesives (thermoplastic resins such as olefin resins) that harden by heating and then cooling can be used.

[0021] The optical fiber 30 includes a first optical fiber 31, a second optical fiber 32 having a length (length from one end to the other end) shorter than the first optical fiber, and a third optical fiber 33 having a length longer than the first optical fiber 31. The optical fiber 30 may be called an optical fiber body including a plurality of optical fibers 31, 32, and 33. The plurality of optical fibers 31, 32, and 33 each have one end serving as a light entrance portion 31A, 32A, and 33A into which light from the light source 40 enters, and the other end serving as a light exit portion 31B, 32B, and 33B from which light from the light source 40 exits. Between the light entrance portions 31A, 32A, and 33A and the light exit portions 31B, 32B, and 33B are light guide portions 31C, 32C, and 33C that guide the light.

[0022] The optical fibers 30 are bundled by inserting the portions of the light guides 31C, 32C, 33C on the side of the light entrance portions 31A, 32A, 33A into a cylindrical sleeve 34. A light source 40 is disposed at the tip of the light entrance portions 31A, 32A, 33A. The light source 40 is, for example, an LED. The layer structure (cross-sectional structure) of the optical fiber 30 is not particularly limited, but may be, for example, a structure including a core and a cladding disposed outside the core and having a lower refractive index than the core.

[0023] The light output portion 31B of the first optical fiber 31 and the light output portion 32B of the second optical fiber 32 are bonded to the first adhesive 21 and the second adhesive 22 from the outside of the vehicle cabin, respectively. The third optical fiber 33 has a middle portion of the light guide portion 33C bonded to the third adhesive 23, and the light output portion 33B is inserted into the third hole portion 17 and reaches the edge portion 17A on the front side. The configuration of the light output portion 31B of the first optical fiber 31 and its periphery will be described below with reference to FIG. 2, but the configuration of the light output portion 32B of the second optical fiber 32 and its periphery will be the same. The light output portion 31B is bonded to the first adhesive 21 in a manner inclined with respect to the penetration direction of the first hole portion 15 (inside and outside the vehicle cabin). For example, the light output portion 31B is inclined so that the axial direction W of the first optical fiber 31 (axial direction of the light guide portion 31C) intersects with the penetration direction of the first hole portion 15 at an angle of 45 degrees. The light emitting portion 31B is disposed so that the edge portion 15B (more specifically, an opening formed by the edge portion 15B) is located in the axial direction W of the first optical fiber 31. The end face 31B3 of the light emitting portion 31B is oriented toward the edge portion 15B.

[0024] The light emitting portion 31B includes a cylindrical inner portion 31B1 including a core and a clad, and a cylindrical outer portion 31B2 arranged outside the inner portion 31B1 and having a higher adhesive strength to the adhesive 21 than the inner portion 31B1. For example, the tensile adhesive strength defined in JIS K 6849 can be adopted as the adhesive strength. A part of the outer portion 31B2 on the end face 31B3 side is adhered to the adhesive 21. The outer portion 31B2 is a fiber material made of woven fabric, nonwoven fabric, or the like. The outer portion 31B2 may be impregnated with the adhesive 21. The end face 31B3 is a surface of the light emitting portion 31B where the inner portion 31B1 is exposed. At the end face 31B3, the inner portion 31B1 is adhered to the adhesive 21. In another embodiment, a tape material may be added to the outer portion 31B2.

[0025] When manufacturing the lighting structure 100, the manufacturing method includes a preparation step of preparing an optical fiber 30 (a first optical fiber 31 is shown as an example) and an interior material 10, as shown in FIG. 3, a first bonding step of bonding adhesives 21, 22 to edge portions 15B, 16B on the back side of the hole portions 15, 16 of the interior material 10 so as to cover the hole portions 15, 16 from the back side, and a second bonding step of bonding light emission portions 31B, 32B of the optical fiber 30 to the adhesives 21, 22 from the outside of the vehicle compartment before the adhesives 21, 22 harden.

[0026] In the preparation step, the outer part (fiber material) 31B2 is attached to the outside of the inner part 31B1 at the other end 31B of the first optical fiber 31. At this time, the outer part 31B2 covers the end face 31B4 of the inner part 31B1. Next, a part (tip part) of the other end 31B is cut to form the light emitting part 31B having the end face 31B3 (see FIG. 2) where the inner part 31B1 is exposed at the cut surface C. In the second bonding step, the end face 31B3 where the inner part 31B1 is exposed is inserted into the uncured adhesive 21 to bond the light emitting part 31B to the adhesive 21. At this time, the light emitting part 31B is inserted into the adhesive 21 from a direction oblique to the penetrating direction of the hole 15. The formation of the light emitting part 32B of the second optical fiber 32 and bonding to the adhesive 22 are the same as the above steps.

[0027] Next, the effect of this embodiment will be described. In this embodiment, a lighting structure 100 is shown, which includes a light source 40, an interior material 10 having a surface facing the inside of the vehicle interior, and an optical fiber 30 having one end serving as light entrance portions 31A, 32A for receiving light from the light source 40 and the other end serving as light exit portions 31B, 32B for exiting light from the light source 40, the interior material 10 includes holes 15, 16 penetrating in the vehicle interior and exterior directions, and adhesives 21, 22 having optical transparency and covering the holes 15, 16 from the rear side while adhering to edges 15B, 16B on the rear side of the holes 15, 16, and the light exit portions 31B, 32B are adhered to the adhesives 21, 22 from the outside of the vehicle interior.

[0028] According to such a lighting structure 100, light generated from the light source 40 enters the light entrance parts 31A, 32A of the optical fiber 30, and can exit from the light exit parts 31B, 32B of the adhesives 21, 22 that cover the holes 15, 16 from the back side while adhering to the edges 15B, 16B on the back side of the holes 15, 16. In the optically transparent adhesives 21, 22, the light is refracted or diffused, and a part of the light is emitted to the front side of the holes 15, 16, so that the light can be visually recognized from the inside of the vehicle interior of the interior material 10. As a result, even if the light exit parts 31B, 32B are not arranged on the front side of the holes 15, 16, the structure allows the light to be visually recognized through the holes 15, 16 from the inside of the vehicle interior of the interior material 10, and it is possible to suppress a decrease in the tactile feel of the interior material 10 and a damage caused by the light exit parts 31B, 32B coming into contact with an object. In addition, the illumination mode can be changed by appropriately changing the inclination of the light emitting portions 31B, 32B to be bonded to the adhesives 21, 22 and the depth (distance from the edges 15B, 16B) of the light emitting portions 31B, 32B. For example, when the light emitting portions 31B, 32B face the edges 15B, 16B on the back side of the holes 15, 16, respectively, the closer the inclination of the light emitting portions 31B, 32B is to the angle (0 degrees) at which the axial direction W coincides with the penetrating direction of the holes 15, 16, and the deeper the light emitting portions 31B, 32B are (the closer the distance from the edges 15B, 16B is), the easier it is for the light emitted from the light emitting portions 31B, 32B to the adhesives 21, 22 to be emitted from the adhesives 21, 22 to the front side of the holes 15, 16, and the amount of light directed from the holes 15, 16 toward the inside of the vehicle interior can be increased. If the inclination and depth of the two light emitting parts 31B, 32B are different from each other, it is possible to provide an illumination mode in which the light visible from the first hole 15 and the light visible from the second hole 16 have different amounts of light, and it is also possible to design the magnitude of the difference in the amount of light. In this way, it is possible to provide an illumination structure 100 that is rich in design variations and can improve design by providing a non-uniform illumination mode, by making it possible to realize the illumination structure without inserting the light emitting parts 31B, 32B to the surface side of the holes 15, 16. Therefore, it is easy to attach the optical fiber 30 to the interior material 10, and it is possible to provide a structure that can reduce the burden on the worker involved in the attachment.

[0029] The light emitting portions 31B and 32B are arranged such that the edges 15B and 16B are positioned in the axial direction W of the optical fiber 30.

[0030] According to such an illumination structure 100, the light emitted from the light emitting portions 31B, 32B to the adhesives 21, 22 can be easily viewed from the front surface side of the holes 15, 16, making it possible to improve the design.

[0031] The light emitting portions 31B and 32B are bonded to the adhesives 21 and 22 in such a manner that they are inclined with respect to the penetrating direction of the holes 15 and 16.

[0032] According to such a lighting structure 100, it is possible to reduce the height at which the optical fiber 30 rises from the adhesives 21, 22 toward the outside of the vehicle cabin on the back side of the interior material 10. This makes it difficult for the optical fiber 30 to come into contact with other members on the back side of the interior material 10, and thus makes it possible to suppress damage to the optical fiber 30.

[0033] The light emitting portions 31B and 32B each include an inner portion 31B1 and an outer portion 31B2 that is disposed outside the inner portion 31B1 and has a higher adhesive strength to the adhesives 21 and 22 than the inner portion 31B1.

[0034] According to such a lighting structure 100, it is possible to provide a structure in which the light emitting portions 31B and 32B are unlikely to come off from the adhesives 21 and 22.

[0035] The outer portions 31B2 of the light emitting portions 31B and 32B are made of a fiber material.

[0036] According to such a lighting structure 100, the light emitting portions 31B and 32B are unlikely to come off from the adhesives 21 and 22, and a practical structure can be achieved.

[0037] The interior material 10 comprises a first part 13 and a second part 14 arranged at a position closer to the outside of the vehicle cabin than the first part 13, and the hole parts 15, 16 include a first hole part 15 formed through the first part 13 and a second hole part 16 formed through the second part 14, the adhesives 21, 22 include a first adhesive 21 adhered to a first edge part 15B on the back side of the first hole part 15 and a second adhesive 22 adhered to a second edge part 16B on the back side of the second hole part 16, and the optical fiber 30 includes a first optical fiber 31 having the other end adhered to the first adhesive 21 and a second optical fiber 30 having the other end adhered to the second adhesive 22.

[0038] With this lighting structure 100, even if the interior material 10 has parts (first part 13, second part 14) positioned at different positions in the interior and exterior directions of the vehicle, multiple optical fibers 31, 32 can be routed from one light source 40 to create a lighting structure 100 with a wide variety of designs.

[0039] <Embodiment 2> Next, a second embodiment of the present disclosure will be described with reference to Fig. 4. In this embodiment, the same components as those in the above embodiment are designated by the same reference numerals, and redundant descriptions of the structure, operation, and effects will be omitted.

[0040] In the lighting structure 200, the light output portion 231B of the optical fiber 230 includes a cylindrical inner portion 231B1, an outer portion 231B2 to which a coating film or powder material is attached and disposed on the outside of the inner portion 231B1, and an end surface 231B3. The outer portion 231B2 is formed by attaching a coating film or powder material to the outer periphery of the outer periphery of the inner portion 231B1 along the axial direction of the optical fiber 230.

[0041] Such an illumination structure 200 can have a practical structure in which the light emitting portion 231B is unlikely to come off the adhesive 21. Also, a structure in which light can be easily emitted from the light emitting portion 231B toward the adhesive 21 can be achieved.

[0042] <Other embodiments> The present disclosure is not limited to the embodiments described above and in the drawings, and for example, the following embodiments are also included within the technical scope of the present disclosure. Furthermore, in addition to the embodiments described below, various modifications can be made without departing from the spirit of the present disclosure.

[0043] (1) In addition to the above-mentioned embodiments, the orientation of the light output portion bonded to the adhesive can be changed as appropriate. For example, as in the illumination structure 300 shown in Fig. 5(A), the light output portion 31B may be bonded to the adhesive 21 with its axial direction W perpendicular to the penetration direction of the hole 15. Also, as in the illumination structure 400 shown in Fig. 5(B), the light output portion 31B may be bonded to the adhesive 21 with its axial direction W coinciding with the penetration direction of the hole 15.

[0044] (2) In addition to the above embodiment, the position of the light output portion bonded to the adhesive can be changed as appropriate. For example, as in the lighting structure 600 shown in FIG. 6(A), the light output portion 31B may be bonded to the adhesive 21 such that its end surface 31B3 is located below the center portion of the adhesive 21 in the vertical direction. In this case, the end surface 31B3 may partly protrude below the adhesive 21, or may be in contact with the edge portion 15B on the back side of the hole 15. Also, as in the lighting structure 600 shown in FIG. 6(B), the light output portion 31B may be bonded to the adhesive 21 such that its end surface 31B3 is located in contact with the back surface 21A of the adhesive 21.

[0045] (3) The number of optical fibers is not limited. One optical fiber body may include four or more optical fibers, or may include several tens of optical fibers. In addition, the illumination structure does not have to include the third optical fiber shown in the first embodiment.

[0046] (4) The shape of the adhesive is not limited. The adhesive may be trapezoidal, triangular, flat, or irregular in cross section.

[0047] (5) The interior materials exemplified in the above embodiment are not limited to automobile ceiling materials. Other examples of interior materials include automobile door trims, instrument panels, pillar garnishes, and other vehicle interior materials (vehicle interior materials). In addition, the vehicle lighting structures exemplified in the above embodiment are not limited to automobiles (vehicles) and may be provided in various vehicles. For example, the vehicle lighting structures can be applied to vehicles such as trains and recreational vehicles as ground vehicles, airplanes and helicopters as flying vehicles, and ships and submarines as marine and underwater vehicles. [Explanation of symbols]

[0048] 1...base material, 10...interior material, 11...base material, 13...general part (first part), 14...outer part (second part), 15...first hole part (hole part), 16...second hole part (hole part), 15B, 16B...edge part, 21...first adhesive (adhesive), 22...second adhesive (adhesive), 30, 230...optical fiber, 31...first optical fiber, 31A, 32A...light entrance part, 31B, 32B, 231B...light exit part, 31B1, 231B1...inside, 31B2, 231B2...outside, 32...second optical fiber, 40...light source, 100, 200, 300, 400, 500, 600...lighting structure (vehicle lighting structure)

Claims

1. A light source; an interior material having a surface facing an interior of a vehicle; an optical fiber having one end serving as a light input portion for inputting light from the light source and the other end serving as a light output portion for outputting light from the light source; The interior material is A hole portion penetrating in a direction from inside to outside the vehicle; an adhesive that is adhered to an edge portion on a rear surface side of the hole portion and covers the hole portion from the rear surface side, and has optical transparency; The light emitting portion is adhered to the adhesive from outside the vehicle compartment.

2. The vehicle lighting structure according to claim 1 , wherein the light emitting portion is disposed such that the edge portion is located in an axial direction of the optical fiber.

3. The vehicle lighting structure according to claim 1 or 2, wherein the light emitting portion is adhered to the adhesive in a manner inclined with respect to a penetrating direction of the hole portion.

4. The light emitting unit is Inside, The vehicle lighting structure according to claim 1 or 2, further comprising: an outer portion disposed outside the inner portion and having a higher adhesive strength to the adhesive than the inner portion.

5. The vehicle lighting structure according to claim 4 , wherein the exterior of the light emitting portion is provided with a fiber material or a tape material.

6. The vehicle lighting structure according to claim 4 , wherein the exterior of the light emitting portion is coated with a coating or a powder material.

7. The interior material is Part 1 and a second portion disposed at a position closer to the outside of the vehicle cabin than the first portion; The hole portion is A first hole formed through the first portion; a second hole portion formed through the second portion, The adhesive is a first adhesive bonded to a first edge portion on a back surface side of the first hole portion; a second adhesive bonded to a second edge portion on the back side of the second hole portion, The optical fiber is a first optical fiber having the other end bonded to the first adhesive; The vehicle lighting structure according to claim 1 or 2, further comprising: a second optical fiber having an opposite end bonded to the second adhesive.

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