Light guide plate, signal lamp and vehicle

Abstract

The present application relates to a signal lamp. Disclosed is a light guide plate, comprising a light guide plate main body. Two side surfaces, i.e. front and rear side surfaces, of the light guide plate main body in the thickness direction are respectively a first side surface and a second side surface; one of the first side surface and the second side surface is provided with a light-incoming part, and the other one thereof is partially recessed inwards to form a recessed part, the recessed part and the light-incoming part being arranged corresponding to each other, and a wall surface of the recessed part being configured as a first reflective surface; one of the first side surface and the second side surface is provided with a first light-emitting surface and a second light-emitting surface, and the other one thereof is provided with a second reflective surface and a third reflective surface, the second light-emitting surface being arranged on the outer side of the first light-emitting surface; light entering from the light-incoming part is partially reflected by the second reflective surface and then emitted from the first light-emitting surface to form a first pattern, and is partially reflected by the third reflective surface and then emitted from the second light-emitting surface to form a second pattern. In addition, the present application further provides a signal lamp and a vehicle. The light guide plate can evenly distribute light to improve optical efficiency, and has low costs.

Description

Light guide plate, signal lamp and vehicle TECHNICAL FIELD

[0001] The present application relates to a signal lamp, in particular to a light guide plate. Furthermore, the present application also relates to a signal lamp and a vehicle comprising the light guide plate. BACKGROUND

[0002] Conventional vehicle logos cannot be illuminated, and with the development of electric vehicles, the non-illuminable logos are gradually replaced by the illuminable logos. In the prior art, the logo is usually illuminated by arranging light sources that can cover the entire logo inside the logo. This method requires a larger space and has poor uniformity of illumination. In addition, the use of more light sources increases the cost.

[0003] Therefore, there is an urgent need for a light guide plate that can achieve uniform illumination, and a signal lamp comprising the light guide plate and having low cost and good illumination effect.

[0004] SUMMARY

[0005] One of the purposes of the present application is to provide a light guide plate that can reduce the number of light sources, effectively improve the utilization efficiency and optical efficiency of the light sources, reduce the cost, and make the light distribution uniform.

[0006] The second purpose of the present application is to provide a signal lamp that can reduce the number of light sources used, effectively improve the utilization efficiency and optical efficiency of the light sources, reduce the cost, and make the light distribution uniform.

[0007] The third purpose of the present application is to provide a vehicle whose signal lamp can reduce the number of light sources used, effectively improve the utilization efficiency and optical efficiency of the light sources, reduce the cost, and make the light distribution uniform.

[0008] In order to achieve the above-mentioned object, the first aspect of the present application provides a light guide plate, comprising a light guide plate body, the light guide plate body has a first side and a second side on the front and back sides in the thickness direction; one of the first side and the second side is provided with a light inlet portion, and the other is partially recessed inward to form a recessed portion, the recessed portion and the light inlet portion are correspondingly arranged, and the wall surface of the recessed portion is provided as a first reflection surface; one of the first side and the second side is formed with a first light outlet surface and a second light outlet surface, and the other is provided with a second reflection surface and a third reflection surface, the second light outlet surface is arranged outside the first light outlet surface, and the light entering from the light inlet portion is adapted to be reflected to the side surface of the light guide plate body through the first reflection surface, part of the light is reflected through the second reflection surface on the side surface to form a first pattern from the first light outlet surface, and part of the light is reflected through the third reflection surface on the side surface to form a second pattern from the second light outlet surface.

[0009] Preferably, the light inlet portion, the second reflection surface and the third reflection surface are arranged on the same side of the light guide plate body.

[0010] Preferably, the second reflection surface is provided with a plurality of second reflection surfaces, and the plurality of second reflection surfaces are all arranged inwardly to the light guide plate body from one side to the other side close to the light inlet portion; and / or,

[0011] The third reflection surface is arranged inwardly to the light guide plate body from one side to the other side close to the light inlet portion.

[0012] Preferably, the side surface of the light guide plate body is formed with a first protruding portion and a second protruding portion, the front surface of the first protruding portion is formed as the first light outlet surface, and the front surface of the second protruding portion is formed as the second light outlet surface.

[0013] Preferably, the first light outlet surface and the second light outlet surface are both provided with light outlet patterns.

[0014] Further preferably, the light outlet patterns are grid patterns.

[0015] Preferably, the projection pattern of the second reflection surface formed in the plane parallel to the first light outlet surface is consistent with the projection pattern of the first light outlet surface formed in the plane parallel to the first light outlet surface; and / or,

[0016] The projection pattern of the third reflection surface formed in the plane parallel to the second light outlet surface is consistent with the projection pattern of the second light outlet surface formed in the plane parallel to the second light outlet surface.

[0017] Preferably, the third reflection surface is arranged outside the second reflection surface.

[0018] Preferably, the second reflecting surface and / or the third reflecting surface is provided with a tooth-like pattern structure.

[0019] Further preferably, the tooth-like pattern structures arranged on both sides of the tooth-like pattern structure closest to the light entrance part are inclined outward, and the inclination angles of the tooth-like pattern structures gradually increase from near to far.

[0020] Preferably, the light entrance part is a condenser.

[0021] Preferably, the recess is provided in a conical shape, and the reflecting surface is a total reflecting surface.

[0022] Preferably, the light entrance part and the recess are correspondingly provided with a plurality of the light entrance parts and the recesses.

[0023] Preferably, the reflecting surface is provided with a circular pattern, the centers of a plurality of circles in the circular pattern are on the same straight line, and the planes on which the plurality of circles are located are all perpendicular to the straight line.

[0024] The second aspect of the present application provides a signal lamp, which comprises a light source and the light guide plate described above, and the light source is correspondingly provided with the light entrance part.

[0025] Preferably, the signal lamp further comprises a circuit board, a frame, a shell and an outer lampshade, the light guide plate is arranged between the light source and the outer lampshade, the circuit board and the light guide plate are arranged between the shell and the outer lampshade, the light guide plate is arranged between the circuit board and the outer lampshade, and the shell and the outer lampshade are connected through the frame.

[0026] The third aspect of the present application provides a vehicle, which comprises the light guide plate or the signal lamp described above.

[0027] Through the technical solution described above, the light guide plate provided by the present application is provided with the first light exit surface and the second light exit surface on one of the front and back sides of the light guide plate main body along the thickness direction, and is provided with the second reflecting surface and the third reflecting surface on the other side, and the light entrance part and the recess are also arranged on the two sides. After the light enters the light guide plate main body and is reflected by the reflecting surface at the recess, part of the light is reflected by the second reflecting surface and then emitted from the first light exit surface to form a first pattern, and part of the light is reflected by the third reflecting surface and then emitted from the second light exit surface to form a second pattern. The first pattern and the second pattern are arranged inside and outside to enable the first pattern and the second pattern to combine to form a complete pattern. The light guide plate provided by the present application can reduce the number of light sources and reduce light loss under the condition of the same light emitting area, effectively improve the utilization efficiency and optical efficiency of the light source. Moreover, the structure is relatively simple, effectively reducing the cost. At the same time, the light can be uniformly emitted from the light exit surface to form a pattern with uniform brightness, achieving the purpose of uniform lighting.

[0028] Other advantages and / or technical effects of the present application and preferred embodiments will be further described in the detailed description of the application. BRIEF DESCRIPTION OF DRAWINGS

[0029] Fig. 1 is a schematic view of a light guide plate according to an embodiment of the present application;

[0030] Fig. 2 is a schematic view of a light guide plate according to an embodiment of the present application;

[0031] Fig. 3 is a schematic view of a light guide plate according to an embodiment of the present application;

[0032] Fig. 4 is a schematic view of a light guide plate according to an embodiment of the present application;

[0033] Fig. 5 is a schematic view of a light guide plate according to an embodiment of the present application;

[0034] Fig. 6 is a schematic view of a light guide plate according to an embodiment of the present application;

[0035] Fig. 7 is a schematic view of a light guide plate according to an embodiment of the present application;

[0036] Fig. 8 is a schematic view of a light guide plate according to an embodiment of the present application;

[0037] Fig. 9 is a schematic view of a light guide plate according to an embodiment of the present application;

[0038] Fig. 10 is a schematic view of a light guide plate according to a second embodiment of the present application;

[0039] Fig. 11 is a schematic view of a light guide plate according to a second embodiment of the present application;

[0040] Fig. 12 is a schematic view of a light guide plate according to a second embodiment of the present application;

[0041] Fig. 13 is a schematic view of a light guide plate according to a second embodiment of the present application;

[0042] Fig. 14 is a schematic view of a light guide plate according to a second embodiment of the present application;

[0043] Fig. 15 is an exploded view of a signal lamp according to an embodiment of the present application;

[0044] Fig. 16 is an exploded view of a signal lamp according to an embodiment of the present application.

[0045] REFERENCE NUMERALS

[0046] 1 light guide plate 2 housing

[0047] 3 outer lampshade 4 circuit board

[0048] 5 frame 6 light source

[0049] 11 light inlet 12 recess

[0050] 13 light guide plate main body

[0051] 121 first reflecting surface

[0052] 131 second reflecting surface 132 first light outlet surface

[0053] 133 third reflecting surface 134 second light outlet surface

[0054] 135 first protruding part 136 second protruding part

[0055] 137 toothed pattern structure DETAILED DESCRIPTION

[0056] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings, it should be understood that the specific embodiments described herein are only used to explain and illustrate the present application, the protection scope of the present application is not limited to the specific embodiments described below.

[0057] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be direct connection, or indirect connection through intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In addition, the terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features, therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features.

[0058] In the present application, the orientation words such as "up, down, left, right, front, back" used herein generally refer to the positional relationship of the signal lamp in actual use, for example, when the signal lamp is arranged at the tail of the vehicle and emits light to the rear of the vehicle, the direction indicated by the head of the vehicle is back, the direction indicated by the tail of the vehicle is front, and "up", "down", "left" and "right" are the positional relationship determined based on the "front" and "back" positional relationship. "Inside, outside" refers to the positional relationship with respect to the structure, for example, the light entrance part 11, the space enclosed by the light entrance part 11 is inside, and the space outside the light entrance part 11 is outside.

[0059] In the present application, "parallel" is not absolute parallel, but parallel within the error tolerance range. "Perpendicular" is not absolute perpendicular, but perpendicular within the error tolerance range. "Consistent" is not absolute consistency, but consistency within the error tolerance range. "Equal" is not absolute equality, but equality within the error tolerance range.

[0060] The basic embodiment of the present application provides a light guide plate 1, as shown in FIGS. 1-6, 9-14, comprising a light guide plate body 13, the front and back two sides of the light guide plate body 13 along the thickness direction h are respectively a first side and a second side; one of the first side and the second side is provided with a light entrance part 11, the other is partially inwardly recessed to form a recessed part 12, the recessed part 12 and the light entrance part 11 are correspondingly arranged, the wall surface of the recessed part 12 is provided as a first reflection surface 121, and one of the first side and the second side is formed with a first light exit surface 132 and a second light exit surface 134, the other is provided with a second reflection surface 131 and a third reflection surface 133, the second light exit surface 134 is arranged outside the first light exit surface 132, the light entering from the light entrance part 11 is adapted to be reflected to the side surface of the light guide plate body 13 through the first reflection surface 121, part of the light is reflected from the second reflection surface 131 on the side surface to form a first pattern from the first light exit surface 132, and part of the light is reflected from the third reflection surface 133 on the side surface to form a second pattern from the second light exit surface 134.

[0061] According to the present application, the partially inwardly recessed to form a recessed part 12 means that part of the area of the first side or the second side is inwardly recessed to form a recessed part 12.

[0062] For example, the second reflecting surface 131 and the third reflecting surface 133 are arranged on the first side surface in regions other than the light-incident portion 11, and the second reflecting surface 131 is arranged outside the third reflecting surface 133 or inside the third reflecting surface 133; the first light-exit surface 132 and the second light-exit surface 134 are arranged on the second side surface in regions other than the recessed portion 12. In actual application, the light source 6 is arranged at the light-incident portion 11, light rays enter the light guide plate main body 13 through the light-incident portion 11, and after reaching the recessed portion 12, are reflected by the first reflecting surface 121 to the first side surface, part of the light rays are reflected by the second reflecting surface 131 and exit from the first light-exit surface 132 to form a first pattern, and part of the light rays are reflected by the third reflecting surface 133 and exit from the second light-exit surface 134 to form a second pattern, the first pattern and the second pattern are arranged inside and outside to enable the first pattern and the second pattern to combine to form a complete pattern.

[0063] Similarly, for example, the second reflecting surface 131 and the third reflecting surface 133 are arranged on the first side surface in regions other than the recessed portion 12, and the second reflecting surface 131 is arranged outside the third reflecting surface 133 or inside the third reflecting surface 133; the first light-exit surface 132 and the second light-exit surface 134 are arranged on the second side surface in regions other than the light-incident portion 11. In actual application, the light source 6 is arranged at the light-incident portion 11, light rays enter the light guide plate main body 13 through the light-incident portion 11, and after reaching the recessed portion 12, are reflected by the first reflecting surface 121 to the first side surface, part of the light rays are reflected by the second reflecting surface 131 and exit from the first light-exit surface 132 to form a first pattern, and part of the light rays are reflected by the third reflecting surface 133 and exit from the second light-exit surface 134 to form a second pattern, the first pattern and the second pattern are arranged inside and outside to enable the first pattern and the second pattern to combine to form a complete pattern.

[0064] The light guide plate 1 provided by the above basic embodiments of the present application is provided with the first light exit surface 132 and the second light exit surface 134 on one of the front and back sides of the light guide plate body 13 along the thickness direction h, and the second reflecting surface 131 and the third reflecting surface 133 on the other side, and the light entrance portion 11 and the recessed portion 12 are also arranged on the two sides. After the light enters the light guide plate body 13 and is reflected by the first reflecting surface 121 at the recessed portion 12, part of the light is reflected by the second reflecting surface 131 and then emitted from the first light exit surface 132 to form a first pattern, and part of the light is reflected by the third reflecting surface 133 and then emitted from the second light exit surface 134 to form a second pattern. The first pattern and the second pattern are arranged inside and outside to enable the first pattern and the second pattern to combine to form a complete pattern. The light guide plate 1 provided by the above basic embodiments of the present application can reduce the number of light sources 6 and reduce light loss under the condition of the same light emitting area, and effectively improve the utilization efficiency and optical efficiency of the light source 6. Moreover, the structure is relatively simple, which effectively reduces the cost. At the same time, the light can be uniformly emitted from the light exit surface to form a pattern with uniform brightness, and the purpose of uniform lighting is achieved.

[0065] In one specific embodiment of the present application, the light entrance portion 11, the second reflecting surface 131 and the third reflecting surface 133 are arranged on the same side of the light guide plate body 13, which can reduce the influence of the arrangement of the light source 6 on the light emission, further reduce the light loss and improve the optical efficiency.

[0066] Specifically, when the light entrance portion 11 is arranged on the first side, the second reflecting surface 131 and the third reflecting surface 133 are also arranged on the first side, the recessed portion 12 is arranged on the second side, and the second side is formed with the first light exit surface 132 and the second light exit surface 134. When the light entrance portion 11 is arranged on the second side, the second reflecting surface 131 and the third reflecting surface 133 are also arranged on the second side, the recessed portion 12 is arranged on the first side, and the first side is formed with the first light exit surface 132 and the second light exit surface 134.

[0067] In some specific embodiments of the present application, the second reflecting surface 131 is provided with a plurality of second reflecting surfaces 131, which are all arranged inside the light guide plate body 13 from one side close to the light entrance portion 11 to the other side. Alternatively, the third reflecting surface 133 is arranged inside the light guide plate body 13 from one side close to the light entrance portion 11 to the other side. Alternatively, the second reflecting surface 131 is provided with a plurality of second reflecting surfaces 131, and the third reflecting surface 133 and the plurality of second reflecting surfaces 131 are all arranged inside the light guide plate body 13 from one side close to the light entrance portion 11 to the other side, as shown in FIGS. 1-3 and 13. Through the above arrangement, as many light rays as possible can be reflected by the second reflecting surface 131 and the third reflecting surface 133 and then emitted to the other side and then emitted from the first light exit surface 132 or the second light exit surface 134 on the side, further improving the utilization efficiency of the light.

[0068] According to the present application, the inclination angle of the second reflecting surface 131 and the inclination angle of the third reflecting surface 133 can be equal or unequal. When the inclination angle of the second reflecting surface 131 and the inclination angle of the third reflecting surface 133 are unequal, the inclination angle of the second reflecting surface 131 is greater than the inclination angle of the third reflecting surface 133, and the second reflecting surface 131 can be arranged outside the third reflecting surface 133. Preferably, the inclination angle of the second reflecting surface 131 is equal to the inclination angle of the third reflecting surface 133.

[0069] In the present application, the inclination angle of the second reflecting surface 131 refers to the inclination angle of the second reflecting surface 131 relative to a plane parallel to the first light exit surface 132, and the inclination angle of the third reflecting surface 133 refers to the inclination angle of the third reflecting surface 133 relative to a plane parallel to the second light exit surface 134. The first light exit surface 132 and the second light exit surface 134 are parallel or in the same plane.

[0070] In one embodiment of the present application, as shown in FIGS. 1-3, 10, 13, the third reflecting surface 133 is arranged outside the second reflecting surface 131. In the preferred embodiment in this case, the inclination angle of the second reflecting surface 131 is substantially equal to the inclination angle of the second reflecting surface 131.

[0071] The first light exit surface 132 and the second light exit surface 134 can be connected to form a complete plane, and the shapes of the second reflecting surface 131 and the third reflecting surface 133 are arranged to control the shapes of the first pattern and the second pattern. In one embodiment of the present application, as shown in FIGS. 1-3, 9, 12 and 14, the side surface of the light guide plate body 13 is formed with a first protruding portion 135 and a second protruding portion 136, the front surface of the first protruding portion 135 is formed as the first light exit surface 132, and the front surface of the second protruding portion 136 is formed as the second light exit surface 134. Through the above arrangement, the material usage of the light guide plate 1 can be reduced while ensuring the light efficiency, thereby further reducing the cost.

[0072] In one embodiment of the present application, as shown in FIGS. 3-4, 9, 11, 12 and 14, the first light exit surface 132 and the second light exit surface 134 are both provided with light exit patterns. Through the arrangement of the light exit patterns, the brightness of different positions of the first pattern and the second pattern can be further adjusted. The light exit patterns can be any feasible pattern, such as a spiral pattern, a grid pattern or a pattern with other special shapes. In one embodiment of the present application, the light exit patterns are grid patterns.

[0073] In some embodiments of the present application, the projection pattern formed by the second reflective surface 131 on a plane parallel to the first light exit surface 132 is consistent with the projection pattern formed by the first light exit surface 132 on a plane parallel to the first light exit surface 132. Alternatively, the projection pattern formed by the third reflective surface 133 on a plane parallel to the second light exit surface 134 is consistent with the projection pattern formed by the second light exit surface 134 on a plane parallel to the second light exit surface 134. Alternatively, the projection pattern formed by the second reflective surface 131 on a plane parallel to the first light exit surface 132 is consistent with the projection pattern formed by the first light exit surface 132 on a plane parallel to the first light exit surface 132, and the projection pattern formed by the third reflective surface 133 on a plane parallel to the second light exit surface 134 is consistent with the projection pattern formed by the second light exit surface 134 on a plane parallel to the second light exit surface 134, as shown in FIGS. 1-3. The above-mentioned "consistent" means that the size and shape of the patterns are consistent. Through the above-mentioned arrangement, all the light reflected by the second reflective surface 131 can be emitted by the first light exit surface 132, and all the light reflected by the third reflective surface 133 can be emitted by the second light exit surface 134, thereby further improving the utilization efficiency of the light.

[0074] In one embodiment of the present application, the second reflective surface 131 and / or the third reflective surface 133 is provided with a tooth-like pattern structure 137. In FIGS. 1-3, 5, 6, 10 and 13, the tooth-like pattern structure 137 is provided on the second reflective surface 131. Through the provision of the tooth-like pattern structure 137, the light can be more uniform.

[0075] The tooth-shaped structure 137 can be a light guide tooth-shaped structure in the prior art, the cross section of which in the arrangement direction of the tooth-shaped structure 137 is triangular. In one embodiment of the present application, the tooth-shaped structure 137 closest to the light inlet portion 11 is taken as the reference, the tooth-shaped structures 137 arranged on both sides thereof are inclined outward, and the inclination angle of the tooth-shaped structure 137 gradually increases from the near to the far, as shown in FIG. 8. Specifically, the tooth-shaped structure 137 closest to the light inlet portion 11 is taken as the center, the tooth-shaped structures 137 arranged on both sides thereof are arranged away from the tooth-shaped structure 137 closest to the light inlet portion 11, and the farther the distance from the tooth-shaped structure 137 closest to the light inlet portion 11, the greater the inclination angle. In one embodiment of the present application, the tooth-shaped structure 137 closest to the light inlet portion 11 is taken as the reference, the tooth-shaped structures 137 arranged on both sides thereof are inclined outward, and the inclination angle of the tooth-shaped structure 137 gradually increases from the near to the far, and the length of the tooth-shaped structure 137 gradually increases from the near to the far. The length is the length of the extension direction of each tooth-shaped structure 137. Specifically, the tooth-shaped structure 137 closest to the light inlet portion 11 is the shortest, the farther the tooth-shaped structure 137 away from the light inlet portion 11 on both sides, the greater the inclination angle, and the longer the length, showing a trend that the inclination angle of the tooth-shaped structure 137 arranged on both sides of the tooth-shaped structure 137 closest to the light inlet portion 11 gradually increases, and the length gradually increases, as shown in FIG. 7. Through the above arrangement, the light transmitted to the second reflecting surface 131 and / or the third reflecting surface 133 can be more uniform after being reflected by the second reflecting surface 131 and / or the third reflecting surface 133.

[0076] The light inlet portion 11 can be any structure capable of allowing light to enter the light guide plate 1. As one embodiment of the present application, the light inlet portion 11 is adapted to converge the light entering the light inlet portion 11. Exemplarily, the light inlet portion 11 can be a light collector or a Fresnel lens. The light inlet portion 11 is arranged to be adapted to converge the light entering the light inlet portion 11, which can further reduce the light loss and improve the optical efficiency. Preferably, the light inlet portion 11 is a light collector.

[0077] The recess 12 can be conical or frustoconical inwardly. Regardless of the conical or frustoconical shape, the side wall of the recess 12 is arranged to be inclined from the side of the light guide plate body 13 to the light inlet portion 11, and the side wall is arranged to be inclined from the periphery to the central region. In one embodiment of the present application, as shown in FIGS. 1 to 3, the recess 12 is arranged to be conical, which can make the emitted light more uniform. Further preferably, the side wall of the recess 12 forms an acute angle with the main optical axis L of the light inlet portion, and the angle is 30° to 60°, which can make the light reflected from the first reflecting surface 121 be reflected to the side surface provided with the second reflecting surface 131 and the third reflecting surface 133 as much as possible, and then be emitted from the first light outlet surface 132 and the second light outlet surface 134 after being reflected by the second reflecting surface 131 and the third reflecting surface 133, thereby reducing light loss and improving optical efficiency.

[0078] According to the present application, when the light inlet portion 11 is a condenser, the main optical axis L refers to an axis that passes through the focal point of the light inlet portion 11 and is perpendicular to the light outlet surface. In actual arrangement, the vertex of the conical recess 12 is arranged on the main optical axis L.

[0079] In one embodiment of the present application, the first reflecting surface 121 is a total reflecting surface. The total reflecting surface can be any total reflecting surface formed by any feasible manner in the prior art. For example, a total reflecting film is coated on the side wall of the recess 12. The total reflecting film can be a metal film layer.

[0080] In one embodiment of the present application, as shown in FIGS. 1 to 3, a plurality of light inlet portions 11 and recesses 12 are arranged correspondingly. The number of the light inlet portions 11 and the recesses 12 can be adjusted according to the required light outlet area and light outlet brightness, which is simple and convenient, and can ensure that the lighting effect of the formed pattern is uniform and no obvious dark area is formed in the pattern.

[0081] When a plurality of light inlet portions 11 and recesses 12 are arranged correspondingly, the plurality of light inlet portions 11 and the recesses 12 all avoid the second reflecting surface 131 region and the third reflecting surface 133 region.

[0082] In use, a plurality of light guide plates 1 can be combined for use, and each light guide plate 1 can be provided with one or more light sources 6. In the combined use, the first light outlet surface 132 of the plurality of light guide plates 1 is located in the same plane, and the second light outlet surface 134 is also located in the same plane. The plurality of light guide plates 1 can be integrally formed or connected after being separately formed.

[0083] In one embodiment of the present application, as shown in FIGS. 1 to 3, a circular pattern is arranged on the first reflecting surface 121, the centers of the plurality of circles in the circular pattern are on the same straight line, and the planes on which the plurality of circles are located are all perpendicular to the straight line, which can further improve the lighting uniformity.

[0084] Preferably, when the recess 12 is conical, the straight line passes through the vertex of the recess 12. This can make the light rays passing through the vertex disperse uniformly, further improving the uniformity of lighting.

[0085] The basic embodiment of the signal lamp of the present application provides a signal lamp comprising the light source 6 and the light guide plate 1 provided by any of the above embodiments, the light source 6 is arranged corresponding to the light inlet portion 11, see Fig. 15. The signal lamp has all the advantages of the light guide plate 1 described above, which will not be repeated here.

[0086] In a specific embodiment of the present application, as shown in Figs. 15-16, the signal lamp further comprises the circuit board 4, the back frame 5, the shell 2 and the outer lamp shade 3, the light guide plate 1 is arranged between the light source 6 and the outer lamp shade 3, the circuit board 4 and the light guide plate 1 are arranged between the shell 2 and the outer lamp shade 3, the light guide plate 1 is arranged between the circuit board 4 and the outer lamp shade 3, and the shell 2 and the outer lamp shade 3 are connected through the back frame 5.

[0087] In addition, the present application also provides a vehicle comprising the above light guide plate 1 or the above signal lamp. The vehicle has all the advantages of the light guide plate 1 or the signal lamp described above, which will not be repeated here.

[0088] As a relatively preferred embodiment of the present application, a signal lamp is provided, as shown in FIGS. 1-16, comprising a light source 6, a light guide plate 1, an outer lampshade 3, a circuit board 4, a lining frame 5 and a shell 2, the light guide plate 1 is arranged between the light source 6 and the outer lampshade 3, the circuit board 4 and the light guide plate 1 are arranged between the shell 2 and the outer lampshade 3, the light guide plate 1 is arranged between the circuit board 4 and the outer lampshade 3, and the shell 2 and the outer lampshade 3 are connected through the lining frame 5; the light guide plate 1 comprises a light guide plate main body 13, the light guide plate main body 13 is provided with a recessed part 12 and a light inlet part 11, the light inlet part 11 is a condenser; the light source 6 is arranged correspondingly to the light inlet part 11, the light guide plate main body 13 has a first side and a second side along the front and back two sides in the thickness direction h, the first side is provided with the light inlet part 11, a second reflecting surface 131 and a third reflecting surface 133, the second side is provided with a first protruding part 135 and a second protruding part 136, and part of the second side is recessed inward to form the recessed part 12, the front surface of the first protruding part 135 forms a first light outlet surface 132, the front surface of the second protruding part 136 forms a second light outlet surface 134, the first light outlet surface 132 and the second light outlet surface 134 are both provided with light outlet patterns, the light outlet patterns are grid patterns, the projection pattern of the second reflecting surface 131 formed on the plane parallel to the first light outlet surface 132 is consistent with the projection pattern of the first light outlet surface 132 formed on the plane parallel to the first light outlet surface 132, the projection pattern of the third reflecting surface 133 formed on the plane parallel to the second light outlet surface 134 is consistent with the projection pattern of the second light outlet surface 134 formed on the plane parallel to the second light outlet surface 134, the recessed part 12 and the light inlet part 11 are arranged correspondingly, the wall surface of the recessed part 12 is arranged as a first reflecting surface 121, the recessed part 12 is arranged in a conical shape, the first reflecting surface 121 is a total reflecting surface, the first reflecting surface 121 is provided with circular patterns, and the centers of the plurality of circles in the circular patterns are on the same straight line; the second reflecting surface 131 is provided with a plurality of second reflecting surfaces 131, the plurality of second reflecting surfaces 131 are all arranged obliquely from the side close to the light inlet part 11 to the inside of the light guide plate main body 13, and the third reflecting surface 133 is arranged obliquely from the side close to the light inlet part 11 to the inside of the light guide plate main body 13; the third reflecting surface 133 is arranged outside the second reflecting surface 131, the second light outlet surface 134 is arranged outside the first light outlet surface 132, and the second reflecting surface 131 is provided with a tooth-shaped pattern structure 137, taking the tooth-shaped pattern structure 137 closest to the light inlet part 11 as a reference, the tooth-shaped pattern structures 137 arranged on both sides thereof are inclined outward, and the inclination angles of the tooth-shaped pattern structures 137 gradually increase from near to far.The second reflecting surface 131 and the first light exit surface 132 are correspondingly arranged, and the third reflecting surface 133 and the second light exit surface 134 are correspondingly arranged. The light entering the light entrance part 11 is adapted to be reflected by the first reflecting surface 121 to the side surface of the light guide plate body 13, part of the light is reflected by the second reflecting surface 131 on the side surface and then emitted from the first light exit surface 132 to form a first pattern, and part of the light is reflected by the third reflecting surface 133 on the side surface and then emitted from the second light exit surface 134 to form a second pattern. The first pattern and the second pattern are combined to form a complete signal pattern.

[0089] The signal lamp provided by the preferred embodiments of the present application has a simple structure, can increase the light emitting area of a single LED, reduce the number of LEDs of the signal lamp, and has a low cost. Moreover, the signal lamp provided by the present application can improve the utilization efficiency of the light source 6 and has a high optical efficiency. The tooth-shaped pattern structure can further improve the uniformity of the light. The special arrangement of the first reflecting surface 121, the second reflecting surface 131, the third reflecting surface 133, the first light exit surface 132, and the second light exit surface 134 can further improve the utilization efficiency of the light source 6.

[0090] The preferred embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the specific details in the above-described embodiments. Within the technical concept of the present application, various simple modifications can be made to the technical solutions of the present application, and these simple modifications all belong to the protection scope of the present application.

[0091] In addition, it should be noted that each specific technical feature described in the above-described specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present application will not further describe various possible combinations.

[0092] Furthermore, various different embodiments of the present application can also be combined in any appropriate manner, as long as they do not deviate from the idea of the present application, and they should also be considered as disclosed in the present application.

Claims

1. A light guide plate, characterized by, The light guide plate body (13) includes two sides in the thickness direction (h), which are the first side and the second side; one of the first side and the second side is provided with a light inlet portion (11), and the other is partially inwardly recessed to form a recessed portion (12); the recessed portion (12) and the light inlet portion (11) are correspondingly arranged, and the wall surface of the recessed portion (12) is provided as a first reflection surface (121); one of the first side and the second side is formed with a first light outlet surface (132) and a second light outlet surface (134), and the other is provided with a second reflection surface (131) and a third reflection surface (133); the second light outlet surface (134) is arranged outside the first light outlet surface (132); the light entering from the light inlet portion (11) is adapted to be reflected to the side of the light guide plate body (13) through the first reflection surface (121), part of the light is reflected from the second reflection surface (131) on the side to form a first pattern, and part of the light is reflected from the third reflection surface (133) on the side to form a second pattern.

2. The light guide panel according to claim 1, characterized in that, The light inlet portion (11), the second reflection surface (131) and the third reflection surface (133) are arranged on the same side of the light guide plate body (13).

3. The light guide plate of claim 1, wherein, The second reflection surface (131) is provided with a plurality of second reflection surfaces (131), which are arranged inwardly from one side to the other side of the light guide plate body (13); and / or, The third reflection surface (133) is arranged inwardly from one side to the other side of the light guide plate body (13).

4. The light guide plate according to any one of claims 1 to 3, characterized by, The side of the light guide plate body (13) is formed with a first protruding portion (135) and a second protruding portion (136), the front surface of the first protruding portion (135) is formed as the first light outlet surface (132), and the front surface of the second protruding portion (136) is formed as the second light outlet surface (134).

5. The light guide plate according to any one of claims 1 to 3, wherein The first light outlet surface (132) and the second light outlet surface (134) are both provided with light outlet patterns.

6. The light guide panel according to claim 5, characterized in that, The light outlet patterns are grid patterns.

7. The light guide plate according to any one of claims 1 to 3, wherein The projection pattern of the second reflection surface (131) formed in a plane parallel to the first light outlet surface (132) is consistent with the projection pattern of the first light outlet surface (132) formed in a plane parallel to the first light outlet surface (132); and / or, The projection pattern of the third reflection surface (133) formed in a plane parallel to the second light outlet surface (134) is consistent with the projection pattern of the second light outlet surface (134) formed in a plane parallel to the second light outlet surface (134). The third reflection surface (133) is arranged outside the second reflection surface (131).

8. The light guide plate according to any one of claims 1 to 3, wherein The second reflection surface (131) and / or the third reflection surface (133) is provided with a tooth-like pattern structure (137).

9. The light guide plate according to any one of claims 1 to 3, wherein ​ 10. The light guide plate according to claim 9, characterized by The toothed pattern structures (137) arranged on both sides of the toothed pattern structure (137) closest to the light-incident part (11) are inclined outward, and the inclination angles of the toothed pattern structures (137) gradually increase from near to far.

11. The light guide plate according to any one of claims 1 to 3, wherein The light-incident part (11) is a condenser; and / or, The recess (12) is provided in a conical shape, and the first reflecting surface (121) is a total reflecting surface; and / or, the light-incident part (11) and the recess (12) are correspondingly provided with a plurality of recesses.

12. The light guide plate according to any one of claims 1 to 3, wherein The first reflecting surface (121) is provided with a circular pattern, the centers of a plurality of circles in the circular pattern are on a straight line, and the planes on which the plurality of circles are located are all perpendicular to the straight line.

13. A signal light, characterized by The light guide plate (1) according to any one of claims 1 to 12, and a light source (6) corresponding to the light-incident part (11).

14. The signal light of claim 13, wherein, Further comprising a circuit board (4), a back frame (5), a housing (2) and an outer lampshade (3), the light guide plate (1) is arranged between the light source (6) and the outer lampshade (3), the circuit board (4) and the light guide plate (1) are arranged between the housing (2) and the outer lampshade (3), the light guide plate (1) is arranged between the circuit board (4) and the outer lampshade (3), and the housing (2) and the outer lampshade (3) are connected through the back frame (5).

15. A vehicle characterized by comprising: The vehicle comprises the light guide plate (1) according to any one of claims 1 to 12 or the signal lamp according to any one of claims 13 to 14.

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