LED modules and vehicles containing them

Abstract

To provide an LED module which enables reduction of the cubic volume and the weight of a product and can secure uniformity of brightness.SOLUTION: An LED module includes: a cover part 10; a substrate part 20 connected to the front side of the cover part 10; a light emitting part 30 which is electrically connected to the substrate part 20, arranged at the front side of the substrate part 20, and provided so as to emit light through a side surface; a lens part 40 which encloses the side surface of the light emitting part 30 and is arranged at the front side of the substrate part 20; and a panel part 50 into which the lens part 40 is inserted and which is formed with an optical part 51 having fine protrusions on an outer surface and arranged at the front side of the substrate part 20.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to an LED module and a vehicle including the same.

Background Art

[0002] LED modules are used in various fields such as vehicle lamps. FIG. 1 is a conceptual diagram illustrating a conventional LED module 1. As shown in FIG. 1, the conventional LED module 1 has a problem that most of the light emitted from the LED 2 moves only forward, and a structure such as a reflector 3 is required to move the light sideways. Therefore, it is necessary to secure a space of 20 mm or more, which may cause a problem of an increase in the weight of the entire LED module. In addition, such a structure causes restrictions on the arrangement of the LED module, and there is a problem that it is difficult to realize a free design.

[0003] In addition, in the conventional LED module, since most of the light moves only forward, there may be a problem that the brightness of the portion where the light mainly gathers is higher than that of the peripheral portion. FIG. 2 is a conceptual diagram illustrating a vehicle lamp to which a conventional LED module is applied. As shown in FIG. 2, in the case of a conventional LED module, it is difficult to ensure the uniformity of the brightness of the vehicle lamp L to which the conventional LED module is applied.

Summary of the Invention

Problems to be Solved by the Invention

[0004] An object of the present invention is to provide an LED module with a reduced volume and weight of the product.

[0005] Another object of the present invention is to provide an LED module capable of ensuring the uniformity of brightness.

Means for Solving the Problems

[0006] In one example, the LED module includes a cover portion, a substrate portion connected to the front side of the cover portion, a light-emitting portion electrically connected to the substrate portion and positioned on the front side of the substrate portion, which emits light through its sides, a lens portion enclosing the sides of the light-emitting portion and positioned on the front side of the substrate portion, and a panel portion into which the lens portion is inserted, with an optical portion having the shape of micro-protrusions on its outer surface, and positioned on the front side of the substrate portion. The optical section includes a first optical section formed in a recess toward the front on the rear surface of the panel section, which is provided to reflect and guide forward the light emitted from the side surface of the light-emitting section, and the first optical section includes a first region formed on the side surface of the substrate section and a second region formed on the front surface of the substrate section, with a step between it and the first region. It is possible.

[0008] In yet another example, the optical section may further include a second optical section formed on the front surface of the panel section, projecting forward, and provided to guide the light emitted from the side of the light-emitting section forward.

[0009] In yet another example, the first optical section and the second optical section may have corresponding shapes.

[0010] In yet another example, the first optical section may have a shape in which its vertical length decreases as it moves forward.

[0011] In yet another example, the vertical length of the substrate portion can correspond to the vertical length of the cover portion.

[0012] In yet another example, the vertical length of the panel portion can correspond to the vertical length of the substrate portion.

[0013] In yet another example, the substrate portion can be formed in white.

[0014] In yet another example, an outer lens may be further included, positioned at a distance forward from the panel portion.

[0015] In yet another example, the vertical length of the outer lens can correspond to the vertical length of the panel portion.

[0016] In yet another example, an inner lens disposed between the outer lens and the panel portion may be further included.

[0017] In yet another example, the panel portion includes a first recess formed in the rear surface to correspond to the shape of the lens portion, and the lens portion can be inserted into the first recess.

[0018] In yet another example, the vertical length of the substrate portion is shorter than the vertical length of the cover portion, and the panel portion is formed to cover the side surface of the substrate portion. ru It is possible.

[0019] In yet another example, the panel portion further includes a second recess formed in the rear surface to correspond to the size of the substrate portion, and the substrate portion can be inserted into the second recess.

[0020] In yet another example, the lens portion may have a shape obtained by cutting an ellipse in half along its central axis when viewed from the side.

[0021] In yet another example, the lens portion may have a shape formed when viewed from the side, that of an ellipse cut in half along its central axis, with the front end recessed backward.

[0022] In yet another example, the lens portion may have a shape when viewed from the side, that of an ellipse cut in half along its central axis, with the front end recessed backward.

[0023] In one example, the vehicle includes a vehicle body and an LED module inserted into the vehicle body, and the LED module is A substrate portion, and positioned on the front side of the substrate portion, A light-emitting part is provided to emit light through its side, and the side of the light-emitting part is enclosed and are arranged on the front side of the substrate portion. A lens portion and an optical portion into which the lens portion is inserted, having a shape of fine protrusions on its outer surface, are formed. , positioned on the front side of the substrate portionIt includes a panel portion, and the optical portion is formed to be recessed forward on the rear surface of the panel portion, and includes a first optical portion provided to reflect the light emitted from the side surface of the light emitting portion and guide it forward. The first optical portion can include a first region formed on the side surface side of the substrate portion and a second region formed on the front surface side of the substrate portion and provided with a step with the first region.

Advantages of the Invention

[0024] According to the present invention, a reflector is not required, the lens portion can be in close contact with the cover portion, the volume of the product can be reduced, and the weight can be decreased.

[0025] Also, according to the present invention, light is emitted from the side surface of the light emitting portion, and a plurality of fine optical portions reflect light at various angles at different positions from each other, so that the uniformity of brightness can be ensured.

Brief Description of the Drawings

[0026] [Figure 1] It is a conceptual diagram illustrating a conventional LED module. [Figure 2] It is a conceptual diagram illustrating a vehicle lamp to which a conventional LED module is applied. [Figure 3] It is a conceptual diagram illustrating an LED module according to Embodiment 1 of the present invention. [Figure 4] It is a conceptual diagram illustrating a vehicle lamp to which the LED module according to Embodiment 1 of the present invention is applied. [Figure 5] It is a conceptual diagram illustrating a light emission pattern when the shapes of the first optical portion and the second optical portion are triangular. [Figure 6] It is a conceptual diagram illustrating a light emission pattern when the shapes of the first optical portion and the second optical portion are elliptical. [Figure 7] It is a diagram illustrating an example of the shape of the lens portion. [Figure 8] It is a cross-sectional view of FIG. 7. [Figure 9] It is a diagram illustrating another example of the shape of the lens portion. [Figure 10] This is a cross-sectional view of Figure 8. [Figure 11] This diagram illustrates yet another example of the shape of the lens section. [Figure 12] This is a cross-sectional view of Figure 11. [Figure 13] This diagram illustrates yet another example of the shape of the lens section. [Figure 14] This is a cross-sectional view of Figure 13. [Figure 15] This diagram illustrates yet another example of the shape of the lens section. [Figure 16] This is a cross-sectional view of Figure 15. [Figure 17] This diagram illustrates yet another example of the shape of the lens section. [Figure 18] This is a cross-sectional view of Figure 17. [Figure 19] This diagram illustrates yet another example of the shape of the lens section. [Figure 20] This is a cross-sectional view in Figure 19. [Figure 21] This diagram illustrates yet another example of the shape of the lens section. [Figure 22] This is a cross-sectional view of Figure 21. [Figure 23] This is a conceptual diagram illustrating an LED module according to Embodiment 2 of the present invention. [Figure 24] This is a conceptual diagram illustrating an LED module according to Embodiment 3 of the present invention. [Modes for carrying out the invention]

[0027] Hereinafter, some embodiments of the present invention will be described in detail with reference to illustrative drawings. When assigning reference numerals to the components in each drawing, efforts have been made to use the same reference numerals for the same component, even if they are shown in different drawings. Furthermore, when describing embodiments of the present invention, if it is determined that a specific description of a related known configuration or function would interfere with understanding the embodiments of the present invention, such a detailed description will be omitted.

[0028] <LED module according to Embodiment 1> The LED module according to Embodiment 1 of the present invention relates to an LED module that can be applied to vehicle lamps and the like. Figure 3 is a perspective view illustrating the LED module according to Embodiment 1 of the present invention. In Figure 3, arrows may represent the path of light emitted from the light-emitting part.

[0029] <Basic components of the LED module according to Embodiment 1> As shown in Figure 3, the LED module according to Embodiment 1 of the present invention may include a cover portion 10, a substrate portion 20, a light-emitting portion 30, a lens portion 40, and a panel portion 50. The substrate portion 20 may be connected to the front side of the cover portion 10. The substrate portion 20 may be a general PCB substrate. The substrate portion 20 may be formed in white. In this case, when the light-emitting portion 30, which will be described later, is applied as a white LED, a high reflectivity of the substrate portion 20 can be ensured, resulting in excellent visibility. However, the color of the substrate portion 20 is not limited to this, and there can be various examples depending on the color of the light-emitting portion 30. For example, if the light-emitting portion 30 is a red LED, the substrate portion 20 may also be formed in red.

[0030] The light-emitting unit 30 can be electrically connected to the substrate unit 20 and positioned on the front side of the substrate unit 20. The light-emitting unit 30 can be configured to emit light through its sides. More preferably, the sides of the light-emitting unit 30 can consist of four surfaces, and the light-emitting unit 30 can emit light through these four surfaces.

[0031] The lens portion 40 can enclose the side of the light-emitting portion 30 and be positioned on the front side of the substrate portion 20. Although Figure 3 shows a configuration in which the cross-section of the lens portion 40 is rectangular, this is merely an example, and the lens portion 40 can have various shapes in order to form a uniform light distribution pattern. Details regarding this will be described later. The lens portion 40 can refract the light emitted from the light-emitting portion 30.

[0032] The panel portion 50 may have an optical portion 51 formed on its outer surface, which has the shape of fine protrusions. The optical portion 51 may be arranged to reflect light emitted from the light-emitting portion 30 at various angles. There may be multiple optical portions 51. In Figure 3, the size of the optical portion 51 is shown to be relatively large, but this is for illustrative purposes only, and in reality, the optical portion 51 may be formed to be minute in size compared to the other components.

[0033] The LED module according to Embodiment 1 of the present invention may further include an outer lens 60. The outer lens 60 may be positioned at a distance forward from the panel portion 50. The outer lens 60 can serve as a cover to protect the internal configuration of the LED module according to the present invention from the outside.

[0034] Furthermore, the LED module according to Embodiment 1 of the present invention may further include a housing 70. The housing 70 may be positioned behind the cover portion 10. The housing 70 can protect the LED module by enclosing it from the rear.

[0035] In other words, if the components are arranged in the order from rear to front, they can be in the following order: housing 70, cover part 10, substrate part 20, light-emitting part 30, lens part 40 and panel part 50, and outer lens 60.

[0036] According to the present invention, since light is emitted from the side surface of the light-emitting section 30, a uniform lighting image can be achieved without securing additional space in the front area of ​​the light-emitting section 30 for light diffusion, and the volume occupied by the LED module can be significantly reduced.

[0037] Furthermore, according to the present invention, light is emitted from the side surface of the light-emitting section 30, and multiple minute optical sections 51 reflect light at various angles at different positions from one another, thereby ensuring uniformity of brightness.

[0038] Figure 4 is a conceptual diagram illustrating a vehicle lamp to which an LED module according to Embodiment 1 of the present invention is applied. The LED module according to Embodiment 1 of the present invention can reflect light at various angles, and when the LED module according to Embodiment 1 of the present invention is applied to a lamp, uniformity of the brightness of the lamp L' can be ensured as shown in Figure 4.

[0039] Furthermore, since the LED module according to Embodiment 1 of the present invention ensures uniformity of brightness, it can reduce the number of light sources that need to be placed in a single vehicle lamp.

[0040] <First optical section 51a, second optical section 51b> The optical section 51 may include a first optical section 51a. The first optical section 51a is provided on the rear surface of the panel section 50 and may be formed as a recess toward the front. The first optical section 51a may be provided to reflect light emitted from the side of the light-emitting section 30 and guide it toward the front. The first optical section 51a may refer not only to the shape of a single micro-protrusion but also to an assembly of multiple protrusions.

[0041] For example, the first optical section 51a can have a shape in which its vertical length decreases as it moves forward. For instance, the first optical section 51a can have a shape obtained by cutting an ellipse along the y-axis. Alternatively, the first optical section 51a can have a triangular shape with one side parallel to the y-axis. However, it is not limited to these examples, and the shape of the first optical section 51a can have various examples.

[0042] Furthermore, the optical section 51 may include a second optical section 51b. The second optical section 51b may be provided on the front surface of the panel section 50 and may be formed to protrude forward. The second optical section 51b may be provided to diffuse the light emitted from the side surface of the light-emitting section 30 and guide it forward. The second optical section 51b does not refer only to the shape of a single micro-protrusion, but may also represent an aggregate of multiple protrusions. Needless to say, the second optical section 51b may also have various shapes, similar to those of the first optical section 51a described above.

[0043] The second optical section 51b may have a shape corresponding to the first optical section 51a. However, "corresponding shape" here does not necessarily mean a shape that is exactly the same, but rather may mean that they can be arranged to have similarity under a predetermined rule.

[0044] For example, when the first optical section 51a has alternating triangular and trapezoidal shapes, the second optical section 51b can have alternating trapezoidal and triangular shapes.

[0045] Figure 5 is a conceptual diagram illustrating the light emission pattern when the shapes of the first optical section 51a and the second optical section 51b are triangular. Figure 6 is a conceptual diagram illustrating the light emission pattern when the shapes of the first optical section 51a and the second optical section 51b are elliptical. As shown in Figures 5 and 6, the shapes of the light emission regions A and A' can differ depending on the shape of the optical section 51. Therefore, the operator can form the first optical section 51a and the second optical section 51b to have different shapes depending on the light emission pattern to be formed.

[0046] <Relationship between component sizes> On the other hand, the vertical length of the substrate portion 20 can correspond to the vertical length of the cover portion 10. Also, the vertical length of the panel portion 50 can correspond to the vertical length of the substrate portion 20. Therefore, the vertical length of the panel portion 50 can correspond to the vertical length of the cover portion 10.

[0047] Furthermore, the vertical length of the outer lens 60 can correspond to the vertical length of the panel portion 50. Therefore, the vertical length of the outer lens 60 can correspond to the vertical lengths of the substrate portion 20 and the cover portion 10.

[0048] <Specific shape of panel section 50> The panel portion 50 may include a first recess 52. The first recess 52 can be formed as a recess on the rear surface of the panel portion 50 to correspond to the size of the lens portion 40. Here, "corresponding" does not necessarily mean exactly matching, but can also mean having a space, or more, into which the lens portion 40 can be inserted. For example, the first recess 52 can be formed so that when the lens portion 40 is inserted into the first recess 52, there is no portion that protrudes relative to the panel portion 50.

[0049] As an example, as shown in Figure 2, the shape of the lens portion 40 including the first recess 52 can be a "U" shape rotated 90 degrees.

[0050] The lens portion 40 can be inserted into the first recess 52. The first recess 52 is formed to correspond to the size of the lens portion 40, so that when the lens portion 40 is inserted into the first recess 52, there is no portion that protrudes relative to the panel portion 50.

[0051] On the other hand, the shape of the lens portion 40 can be formed in various ways. Figure 7 is a diagram illustrating one example of the shape of the lens portion. Figure 8 is a cross-sectional view of Figure 7. Figure 9 is a diagram illustrating another example of the shape of the lens portion. Figure 10 is a cross-sectional view of Figure 8. Below, examples of the shape of the lens portion will be described in detail with reference to Figures 7 to 10.

[0052] As an example, as illustrated in Figures 7 and 8, the lens portion 40 may have a shape that, when viewed from the side, is an ellipse cut in half along its central axis.

[0053] As another example, as illustrated in Figures 9 and 10, the lens portion 40 may have a shape when viewed from the side that is like an ellipse cut in half along its central axis, with the front end recessed backward. When the lens portion 40 has a shape like that shown in Figures 9 and 10, it is advantageous for removing hot spots and ensures high optical uniformity.

[0054] However, Figures 7 to 10 are merely examples of lens shape, and various modifications are possible as needed by an average engineer. Figures 11, 13, 15, 17, 19, and 21 illustrate yet another example of lens shape. Figures 12, 14, 16, 18, 20, and 22 are cross-sectional views of Figures 11, 13, 15, 17, 19, and 21. Figures 11 to 22 illustrate various examples of deformable lens shapes.

[0055] For example, the lens portion 40 may have a serrated shape. Alternatively, the lens portion 40 may be formed in a cylindrical shape, or it may have a shape in which the front end of the cylindrical shape is recessed to the rear.

[0056] By forming the lens portion 40 in various shapes, the refraction of light emitted from the light-emitting portion 30 can be varied, and the light path of the light-emitting portion 30 can be formed in various ways, allowing products to be manufactured to achieve specific goals, such as eliminating hot spots or ensuring light uniformity.

[0057] On the other hand, in the LED module according to Embodiment 1, the length of the panel portion 50 in the front-to-back direction is preferably 7 mm, with reference to the portion of the panel portion 50 in which the first recess 52 is not formed. However, it is not limited to this, and various modifications are possible within the range that an ordinary engineer would expect to achieve.

[0058] <LED module according to Embodiment 2> Figure 23 is a conceptual diagram illustrating an LED module according to Embodiment 2 of the present invention. The LED module of Embodiment 2 of the present invention will be described with reference to Figure 23 and Figures 1 to 22.

[0059] The LED module according to Embodiment 2 of the present invention differs from the LED module according to Embodiment 1 in the presence of the inner lens 80 and the thickness of the panel portion 50. Components identical or equivalent to those in the LED module according to Embodiment 1 are given the same or equivalent reference numerals, and a detailed explanation is omitted.

[0060] As illustrated in Figure 23, the LED module according to Embodiment 2 of the present invention may further include an inner lens 80. The inner lens 80 may be positioned between the outer lens 60 and the panel portion 50'.

[0061] On the other hand, the vertical length of the inner lens 80 can correspond to the vertical length of the outer lens 60. Therefore, the vertical length of the inner lens 80 can correspond to the vertical lengths of the panel portion 50', the substrate portion 20, and the cover portion 10.

[0062] On the other hand, in the LED module according to Embodiment 2, the length of the panel portion 50' in the front-to-back direction is preferably 2.5 mm, with reference to the portion of the panel portion 50' where the first recess 52' is not formed, but it is not limited to this, and various modifications can be made within the range that an ordinary engineer would expect to achieve.

[0063] On the other hand, it goes without saying that as the length of the panel portion 50' in the front-to-back direction changes, the relative size of the space occupied by the first recess 52' can also change.

[0064] <LED module according to Embodiment 3> Figure 24 is a conceptual diagram illustrating an LED module according to Embodiment 3 of the present invention. The LED module of Embodiment 3 of the present invention will be described below with reference to Figure 24 and Figures 1 to 22.

[0065] The LED module according to Embodiment 3 of the present invention differs from the LED module according to Embodiment 1 in the shape of the panel portion 50'' and the shape of the first optical portion 51a'. For components that are the same as or equivalent to those in the LED module according to Embodiment 1, the same or equivalent reference numerals are given, and a detailed explanation is omitted.

[0066] The vertical length of the substrate portion 20' of the LED module according to Embodiment 3 of the present invention can be shorter than the vertical length of the cover portion 10. In this case, the panel portion 50'' can be formed to cover the side surface of the substrate portion 20'.

[0067] As an example, the panel portion 50'' may include a second recess 53 into which the substrate portion 20' is inserted. The second recess 53 communicates with the first recess 52'' and can be formed to have a vertical length longer than the vertical length of the first recess 52''. In this case, the panel portion 50'' can be positioned adjacent to the cover portion 10. Furthermore, this allows the first recess 52'' of the LED module according to Embodiment 3 to be moved closer to the center of the panel portion 50'' compared to the first recess 52'' of the LED module according to Embodiment 1.

[0068] As shown in Figure 24, the first optical section 51a' may include a first region 51c and a second region 51d. The first region 51c may be formed on the side of the substrate 20. The second region 51d may be formed on the front of the substrate 20. The second region 51d may be provided with a step between it and the first region 51c.

[0069] <Vehicle> The following describes in detail vehicles including LED modules according to embodiments 1 to 3 of the present invention. Here, the term "vehicle" should be interpreted as encompassing a wide range of means of transportation, including not simply four-wheeled vehicles, but also two-wheeled vehicles, etc. The vehicle may include a vehicle body and LED modules.

[0070] As illustrated in Figure 3, the LED module may include a light-emitting section 30, a lens section 40, and a panel section 50. The light-emitting section 30 may be configured to emit light through its sides. The light-emitting section 30 may be a 4F LED. The lens section 40 may enclose the sides of the light-emitting section 30. The lens section 40 may be inserted into the panel section 50. An optical section 51 having the shape of a micro-protrusion may be formed on the outer surface of the panel section 50.

[0071] The above description is merely illustrative of the technical concept of the present invention, and any person with ordinary skill in the art to which the present invention pertains can make various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed herein are for illustrative purposes only, not to limit the technical concept of the present invention, and the scope of the technical concept of the present invention is not limited by such embodiments. The scope of protection of the present invention should be interpreted in accordance with the following claims, and all technical concepts within an equivalent scope should be interpreted as being included within the scope of the rights of the present invention. [Explanation of Symbols]

[0072] 1. Conventional LED module 2 LED 3 Reflector 10 Cover section 20, 20' Circuit board section 30 Light-emitting part 40 Lens section 50, 50'50'' Panel section 51 Optics Department 51a, 51a' 1st optical section 51b 2nd optical section 51c 1st area 51d 2nd area 52, 52', 52'' First recess 53 Second recess 60 Outer Lens 70 Housing 80 Inner Lens A, A' Emitting regions L, L' lamp

Claims

1. The cover part, A substrate portion connected to the front side of the cover portion, A light-emitting unit is electrically connected to the substrate portion, positioned on the front side of the substrate portion, and provided to emit light through its side surface, A lens portion that encloses the side of the light-emitting portion and is positioned on the front side of the substrate portion, The panel portion includes the lens portion into which the optical portion has the shape of fine protrusions on its outer surface, and is positioned on the front side of the substrate portion. The aforementioned optical unit is The panel portion includes a first optical section formed in a recess toward the front on the rear surface of the panel portion, which is provided to reflect and guide the light emitted from the side of the light-emitting portion toward the front. The first optical unit is, A first region formed on the side surface of the substrate portion, An LED module including a second region formed on the front side of the substrate portion and having a step difference with respect to the first region.

2. The aforementioned optical unit is The LED module according to claim 1, further comprising a second optical section formed on the front surface of the panel section, projecting forward, and provided to guide the light emitted from the side surface of the light-emitting section forward.

3. The LED module according to claim 2, wherein the first optical section and the second optical section have corresponding shapes.

4. The first optical unit is, The LED module according to claim 1, having a shape in which the vertical length decreases as it moves forward.

5. The LED module according to claim 1, wherein the vertical length of the substrate portion corresponds to the vertical length of the cover portion.

6. The LED module according to claim 1, wherein the vertical length of the panel portion corresponds to the vertical length of the substrate portion.

7. The LED module according to claim 1, wherein the substrate portion is formed in white.

8. The LED module according to claim 1, further comprising an outer lens positioned at a distance forward from the panel portion.

9. The LED module according to claim 8, wherein the vertical length of the outer lens corresponds to the vertical length of the panel portion.

10. The LED module according to claim 8, further comprising an inner lens disposed between the outer lens and the panel portion.

11. The aforementioned panel section is The rear surface includes a first recess formed in a recess corresponding to the shape of the lens portion, The LED module according to claim 1, wherein the lens portion is inserted into the first recess.

12. The vertical length of the substrate portion is shorter than the vertical length of the cover portion. The aforementioned panel section is The LED module according to claim 1, which is formed to cover the side surface of the substrate portion.

13. The aforementioned panel section is The rear surface further includes a second recess formed as a recess corresponding to the size of the substrate portion, The substrate portion is inserted into the second recess, as described in claim 12.

14. The aforementioned lens portion is The LED module according to claim 1, having a shape obtained by cutting an ellipse in half along its central axis when viewed from the side.

15. The aforementioned lens portion is The LED module according to claim 1, which, when viewed from the side, has a shape formed by cutting an ellipse in half along its central axis, with the front end recessed backward.

16. The aforementioned lens portion is The LED module according to claim 1, which, when viewed from the side, has a shape obtained by cutting an ellipse in half along its central axis, with the front end being recessed backward.

17. The car body and, The vehicle body includes an LED module inserted into the vehicle body, The aforementioned LED module is The circuit board section, A light-emitting unit is provided, which is positioned on the front side of the substrate portion and is configured to emit light through its side surface, A lens portion that encloses the side of the light-emitting portion and is positioned on the front side of the substrate portion, The panel portion includes the lens portion into which the optical portion has the shape of fine protrusions on its outer surface, and is positioned on the front side of the substrate portion. The aforementioned optical unit is The panel portion includes a first optical section formed in a recess toward the front on the rear surface of the panel portion, which is provided to reflect and guide the light emitted from the side of the light-emitting portion toward the front. The first optical unit is, A first region formed on the side surface of the substrate portion, A vehicle including a second region formed on the front side of the substrate portion and having a step difference with respect to the first region.

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