Light guide part, lamp system and vehicle

Abstract

The invention relates to the technical field of lamps, and discloses a light guide part, a lamp system and a vehicle. The light guide part comprises a main body which is used for transmitting light and is provided with a light emitting surface for emitting the light; the number of the light guide parts is multiple, each light guide part comprises a light guide boss and a polyhedron, the light guide bosses are arranged on the light emitting face, the extending directions of the light guide bosses of at least part of the light guide parts are consistent, and the polyhedrons are arranged at the ends, away from the light emitting face, of the light guide bosses in the extending directions. The light guide boss is arranged on the light emitting surface of the main body, so that light emitted by the main body can be guided, the effect of adjusting the direction of the light is achieved, and the problem that the refraction angle of the light emitted by the main body is too large, and the lighting effect is affected is solved. The polyhedrons can refract and scatter the light rays, so that the light rays have a diffusion effect, the requirement of a preset irradiation range is met, and the energy loss of the light is reduced. The polyhedrons can also generate a diamond light-emitting effect, so that the visual attraction is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of lamps, and in particular to a light guide, a lamp system and a vehicle. Background Art

[0002] With the continuous advancement of vehicle technology, driving lights have become one of the standard configurations of modern vehicles. Driving lights can improve the visibility of vehicles while driving, thereby enhancing driving safety. In driving lights, light guides can protect electronic components and light sources, and can also enhance the luminous effect and overall sophistication of the driving lights.

[0003] The light guide is provided with a light emitting surface for emitting light. However, since the shape of the running lights is usually irregular, the light emitting surface of the light guide is usually an inclined surface or a curved surface, which causes the light to be easily deflected when emitting from the light emitting surface, affecting the light emitting effect. Summary of the invention

[0004] In view of this, the present invention provides a light guide, a lamp system and a vehicle to solve or improve the problem that light is easily deflected when emitted from a light emitting surface.

[0005] In a first aspect, the present invention provides a light guide, comprising:

[0006] A main body, the main body is used to conduct light and is provided with a light emitting surface for emitting light;

[0007] A light guiding part, wherein the number of the light guiding parts is multiple, and the multiple light guiding parts all include a light guiding boss and a polyhedron, the light guiding boss is arranged on the light emitting surface, the extension direction of the light guiding bosses of at least some of the light guiding parts is consistent, and along the extension direction, the polyhedron is arranged at one end of the light guiding boss away from the light emitting surface.

[0008] In an optional embodiment, the polyhedron is configured as a pyramid or a prism, and the bottom surface of the pyramid or the prism is disposed on the light-guiding boss;

[0009] And / or, the light-guiding boss is configured as a cuboid.

[0010] In an optional embodiment, the plurality of light guide portions include a first light guide portion and a second light guide portion, the first light guide portion includes a first polyhedron, and the second light guide portion includes a second polyhedron;

[0011] Wherein, along the extending direction, the height of the first polyhedron is equal to or different from the height of the second polyhedron.

[0012] In an optional embodiment, the plurality of light guide portions include a third light guide portion and a fourth light guide portion, the third light guide portion includes a third polyhedron, and the fourth light guide portion includes a fourth polyhedron;

[0013] The offset of the vertices of the third polyhedron relative to the center of the bottom surface of the third polyhedron is equal to or different from the offset of the vertices of the fourth polyhedron relative to the center of the bottom surface of the fourth polyhedron.

[0014] In an optional implementation, one or at least two of the multi-faceted surfaces are disposed on the light-guiding boss.

[0015] In an optional embodiment, the angle between the extension direction of the light guide portion and the normal direction of the light emitting surface where the light guide boss is located is an acute angle or zero degree;

[0016] And / or, the light emitting surface is a straight surface or a curved surface.

[0017] In a second aspect, the present invention further provides a lighting system, comprising the light guide member as described above.

[0018] In an optional embodiment, the number of the light guides is at least two, and they include a first light guide and a second light guide, at least part of the light guide portion of the first light guide includes a fifth polyhedron, at least part of the light guide portion of the second light guide includes a sixth polyhedron, and both the fifth polyhedron and the sixth polyhedron are pyramids or prisms;

[0019] Wherein, along the extending direction, the height of the fifth polyhedron is equal to or different from the height of the sixth polyhedron.

[0020] In an optional embodiment, the number of the light guides is at least two, and they include a first light guide and a second light guide, at least part of the light guide portion of the first light guide includes a seventh polyhedron, at least part of the light guide portion of the second light guide includes an eighth polyhedron, and both the seventh polyhedron and the eighth polyhedron are pyramids or prisms;

[0021] The offset of the vertices of the seventh polyhedron relative to the center of the bottom surface of the seventh polyhedron is equal to or different from the offset of the vertices of the eighth polyhedron relative to the center of the bottom surface of the eighth polyhedron.

[0022] In a third aspect, the present invention further provides a vehicle, comprising the light guide member as described above or the lamp system as described above.

[0023] The light guide provided by the present invention can guide the light emitted from the main body by arranging a light guiding boss on the light emitting surface of the main body, thereby achieving the effect of adjusting the direction of the light emitted from the main body and avoiding the problem that the refraction angle of the light emitted from the main body is too large, affecting the lighting effect.

[0024] In addition, by arranging a polyhedron on the light-guiding boss, the light can be refracted and scattered. On the one hand, the light can be diffused to meet the preset illumination range requirements and reduce the energy loss of light. On the other hand, the polyhedron scatters the light, so that the polyhedron produces a diamond luminous effect, enhancing the visual appeal. In addition, since the polyhedron can reflect natural light, when the light guide is applied to a vehicle, the polyhedron has a diamond luminous effect even when the headlights are not turned on.

[0025] The lamp system and vehicle provided by the present invention, because they include the light guide provided by the present invention, also include all the above advantages of the light guide. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic diagram of the structure of a light guide provided in an embodiment of the present invention;

[0028] Figure 2 for Figure 1 A partial enlarged schematic diagram of I in the middle;

[0029] Figure 3 A schematic diagram of the structure of a first polyhedron and a second polyhedron provided in an embodiment of the present invention;

[0030] Figure 4 A schematic diagram of the principle of relative offset between the light spot generated by the first polyhedron and the light spot generated by the second polyhedron provided in an embodiment of the present invention;

[0031] Figure 5 A schematic diagram of the structure of a third polyhedron and a fourth polyhedron provided in an embodiment of the present invention;

[0032] Figure 6 A schematic diagram of the principle of relative offset between the light spot generated by the third polyhedron and the light spot generated by the fourth polyhedron provided in an embodiment of the present invention;

[0033] Figure 7 A schematic diagram of a structure in which at least two polyhedrons are arranged on a light-guiding boss provided in an embodiment of the present invention;

[0034] Figure 8 A schematic diagram of the relative position relationship between the first light guide member and the second light guide member provided in an embodiment of the present invention;

[0035] Fig. 9 It is a schematic diagram of the light spot range obtained by optical simulation of a lamp system based on an adjusted light guide provided in an embodiment of the present invention.

[0036] Description of reference numerals:

[0037] 1. Light guide; 101. Main body; 1011. Light emitting surface; 102. Light guide part; 1021. Light guide boss; 1022. Polyhedron; 1022a. First polyhedron; 1022b. Second polyhedron; 1022c. Third polyhedron; 1022d. Fourth polyhedron; 1022e. Fifth polyhedron; 1022f. Sixth polyhedron; 1022g. Seventh polyhedron; 1022h. Eighth polyhedron; 1023. First light guide part; 1024. Second light guide part; 1025. Third light guide part; 1026. Fourth light guide part; 103. First light guide; 104. Second light guide; 2. Light spot; A; Extension direction. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0039] In the related art, the light guide is provided with a light emitting surface for emitting light. However, since the shape of the running lights is usually irregular, the light emitting surface of the light guide is usually an inclined surface or a curved surface, which causes the light to be easily deflected when emitting from the light emitting surface, affecting the lighting effect.

[0040] In order to solve or improve the problem in the related art that light is easily deflected when emitted from a light emitting surface, a light guide, a lamp system and a vehicle are provided in an embodiment of the present invention.

[0041] Reference below Figure 1-Figure 8 , introduces the light guide provided in an embodiment of the present invention.

[0042] Specifically, the light guide 1 includes a main body 101 and a light guide portion 102 .

[0043] The main body 101 is used to conduct light, and a light emitting surface 1011 is provided on the main body 101 for emitting light. Optionally, the light emitting surface 1011 is set as a plane or a curved surface, and the light emitting surface 1011 can be set tilted or vertically. It can be understood that, assuming that the light guide 1 is used for a vehicle lighting system, the tilt of the light emitting surface 1011 can be relative to the front and rear direction of the vehicle.

[0044] In addition, it can be understood that the main body 101 is used to conduct light, so the main body 101 has a light incident surface for light to be incident on, and the light generated by the light source module can enter the main body 101 through the light incident surface after being processed.

[0045] Optionally, the main body 101 is made of a transparent material or a translucent material, such as plastic, PC, PMMA, etc., as long as light can pass through the main body 101 .

[0046] In addition, the specific shape of the main body 101 can be flexibly designed according to the installation location, and is not limited in this embodiment.

[0047] Further, from Figure 1 and Figure 2 It can be seen that there are multiple light guide parts 102, and each light guide part 102 includes a light guide boss 1021 and a polyhedron 1022. The light guide boss 1021 is arranged on the light emitting surface 1011. Optionally, the light guide boss 1021 and the light emitting surface 1011 are arranged as an integral structure. The extension direction A of the light guide bosses 1021 of at least some of the light guide parts 102 is consistent.

[0048] Optionally, when the light guide member 1 is used on a vehicle, the extension direction A of the light guide boss 1021 is consistent with the front-rear direction of the vehicle, that is, the light guide portion 102 extends toward the front of the vehicle. Of course, the extension direction A may also be toward the rear of the vehicle or other directions, which is not limited.

[0049] Along the extension direction A, the polyhedron 1022 is disposed at an end of the light guiding boss 1021 away from the light emitting surface 1011 .

[0050] In this embodiment, after being transmitted through the main body 101, the light enters the light-guiding boss 1021 of the light-guiding portion 102. Under the guidance of the light-guiding boss 1021, the light is transmitted along the extension direction A of the light-guiding boss 1021 and enters the polyhedron 1022, and is finally emitted after being refracted and scattered by the polyhedron 1022.

[0051] In this way, by setting a light-guiding boss 1021 on the light-emitting surface 1011 of the main body 101, the light emitted from the main body 101 can be guided, thereby achieving the effect of adjusting the direction of the light emitted from the main body 101, avoiding the problem of excessive refraction angle of the light emitted from the main body 101, which affects the lighting effect.

[0052] In addition, by arranging the polyhedron 1022 on the light-guiding boss 1021, the light can be refracted and scattered, so that on the one hand, the light can produce a diffusion effect, thereby meeting the preset irradiation range requirements and reducing the energy loss of light.

[0053] On the other hand, the polyhedron 1022 scatters light, so that the polyhedron 1022 produces a diamond luminous effect, which enhances visual appeal. In addition, since the polyhedron 1022 can reflect natural light, when the light guide 1 is applied to a vehicle, the polyhedron 1022 has a diamond luminous effect even when the headlights are not turned on.

[0054] Optionally, the light guide boss 1021, the polyhedron 1022 and the main body 101 are configured as an integrally formed structure, for example, the light guide boss 1021, the polyhedron 1022 and the main body 101 can be configured as an injection molded integrally formed structure. The integrally formed structure can ensure perfect alignment and seamless connection between the components, and avoid light loss caused by assembly errors or opacity at the interface.

[0055] In some embodiments provided by the present invention, the polyhedron 1022 is configured as a pyramid or a truncated pyramid, and the bottom surface of the pyramid or the truncated pyramid is disposed on the light-guiding boss 1021 .

[0056] In this embodiment, the light emitted from the light-guiding boss 1021 enters the polyhedron 1022 through the bottom surface of the polyhedron 1022, and is emitted through multiple side surfaces of the polyhedron 1022, so that the polyhedron 1022 can effectively guide and disperse the light, achieve more uniform light distribution, and make the light propagate in the desired direction, thereby improving the lighting effect and visual effect.

[0057] It is understandable that if the polyhedron 1022 is directly set on the light-emitting surface 1011, then when the light-emitting surface 1011 is set as a curved surface, the height directions of the multiple polyhedrons 1022 are intersecting, that is, the demolding directions of the multiple polyhedrons 1022 are intersecting. When demolding after one-piece injection molding, the polyhedrons 1022 in certain directions may be easier to demold, while the polyhedrons 1022 in other directions may get stuck or produce greater resistance. The uneven demolding resistance may cause the product to deform, be damaged or crack during the demolding process, thereby increasing the scrap rate.

[0058] In this embodiment, since the bottom surfaces of the polyhedrons 1022 are all arranged on the corresponding light-guiding bosses 1021 and the extension directions A of the light-guiding bosses 1021 are consistent, the height directions of the polyhedrons 1022 are consistent, so that the demolding directions of the polyhedrons 1022 are consistent, thereby avoiding the problem of deformation, damage or cracks of the product during the demolding process caused by uneven demolding resistance.

[0059] In some embodiments provided by the present invention, the light-guiding boss 1021 may be configured as a rectangular parallelepiped, such as Figure 3 As shown, since multiple light-guiding bosses 1021 are arranged on the light-emitting surface 1011, when the light-emitting surface 1011 is a curved surface or an inclined surface, all the light-guiding bosses 1021 present a stepped shape as a whole as the light-emitting surface 1011 tilts or bends.

[0060] In this embodiment, the light guide boss 1021 can be set as a rectangular parallelepiped, so that two adjacent side surfaces of the light guide boss 1021 can be set to be in a vertical relationship. In this way, when designing the mold of the light guide member 1, the side surface of the light guide boss 1021 can be made to form a parallel or vertical positional relationship with the reference of the mold, so as to reduce the complex geometric shape and angle of the light guide boss 1021, thereby reducing the difficulty and cost of mold processing.

[0061] In addition, the vertical side surfaces of the light-guiding boss 1021 are more easily able to achieve high precision during mold processing, thereby ensuring the optical performance of the light-guiding component 1 .

[0062] Optionally, refer to Figure 2 , Figure 3 and Figure 5 As shown, in some embodiments provided by the present invention, the polyhedron 1022 is a quadrangular pyramid or a quadrangular pyramid. The bottom surface of the quadrangular pyramid or the quadrangular pyramid is arranged on the corresponding light guide boss 1021. In this embodiment, the polyhedron 1022 is arranged as a quadrangular pyramid or a quadrangular pyramid, so that the polyhedron 1022 has higher symmetry and stability.

[0063] In addition, the bottom surface of the polyhedron 1022 can be the same shape as the surface of the light-guiding boss 1021 that is away from the light-emitting surface 1011 (i.e., the top surface), and the side edges of the polyhedron 1022 can correspond to the side edge lengths of the light-guiding boss 1021 that is configured as a rectangular parallelepiped, thereby ensuring that the bottom surface of the polyhedron 1022 can better cover the surface of the light-guiding boss 1021, so that all light emitted from the light-guiding boss 1021 can enter the polyhedron 1022, thereby reducing light loss.

[0064] Optionally, refer to Figure 1 and Figure 2As shown, the light emitting surface 1011 has different inclination angles in two different directions, so the plurality of light guiding bosses 1021 form step shapes in two directions on the light emitting surface 1011, for example Figure 2 As shown in FIG. 1 , the plurality of light-guiding bosses 1021 form a step shape in the vertical direction and also form a step shape in the horizontal direction.

[0065] Of course, in some embodiments not shown, the light emitting surface 1011 may also generate an inclination angle in only one direction, and then the multiple light guiding bosses 1021 only form a step shape in one direction on the light emitting surface 1011 .

[0066] In the technical solution of this embodiment, the polyhedron 1022 is configured as a quadrangular pyramid, so as to better cover the surface of the light-guiding boss 1021. It is understandable that in some embodiments not shown, the polyhedron 1022 may also be configured as a triangular pyramid, a pentagonal pyramid, a hexagonal pyramid, a triangular pyramid, a pentagonal pyramid or a hexagonal pyramid, etc.

[0067] Generally, when the polyhedron 1022 is set as a quadrangular pyramid, the light emitted from the light-guiding boss 1021 enters the polyhedron 1022 from the bottom surface of the polyhedron 1022, and is emitted from the four side surfaces of the polyhedron 1022, respectively, to form four light spots 2. Accordingly, when the polyhedron 1022 is set as other polygonal pyramids with different numbers of side surfaces, the number of light spots 2 that can be generated by the polyhedron 1022 increases or decreases accordingly.

[0068] Furthermore, under the condition that each light guiding portion 102 generates a number of light spots 2, the light spots 2 of all the light guiding portions 102 of the light guide 1 may be distributed in several independent light spot areas after being superimposed, while there is less light between the light spot areas, thereby possibly causing problems of uneven light diffusion or smaller coverage.

[0069] In order to solve or improve the problem of uneven light diffusion or small coverage, in some embodiments provided by the present invention, reference Figure 4 As shown, by increasing or decreasing the height of the pyramid or prism of some light guide parts 102, a relative offset is generated between the light spots 2 generated by different light guide parts 102, so that the light spots 2 generated by the light guide 1 are more evenly distributed and cover a larger area.

[0070] Alternatively, refer to Figure 6 As shown, the pyramid apex of some light guide parts 102 is offset relative to the center of the pyramid base, so that the light spots 2 generated by different light guide parts 102 are relatively offset, so that the light spots 2 generated by the light guide 1 are more evenly distributed and cover a larger area.

[0071] The above two methods are described in detail below.

[0072] For example, refer to Figure 3 and Figure 4 As shown, in some embodiments provided by the present invention, the plurality of light guide portions 102 include a first light guide portion 1023 and a second light guide portion 1024. The first light guide portion 1023 includes a first polyhedron 1022a, and the second light guide portion 1024 includes a second polyhedron 1022b. For example, the first polyhedron 1022a or the second polyhedron 1022b is configured as a pyramid or a prism.

[0073] The height of the first polyhedron 1022a is equal to or different from the height of the second polyhedron 1022b along the extension direction A of the light-guiding boss 1021. The height of the first polyhedron 1022a is different from the height of the second polyhedron 1022b includes: the height of the first polyhedron 1022a is greater than or less than the height of the second polyhedron 1022b.

[0074] It can be understood that the height of the polyhedron 1022 refers to the size of the polyhedron surface along the extension direction A of the light-guiding boss 1021. For example, Figure 4 As shown, the height of the first polyhedron 1022a is H1, the height of the second polyhedron 1022b is H2, and H1 is greater than H2 in the figure.

[0075] For the sake of convenience, the polyhedron 1022 is set as a quadrangular pyramid as an example, and other pyramids or frustums can be deduced in the same way. In this embodiment, after entering from the bottom surface of the polyhedron 1022, the light is refracted and emitted from the four side surfaces of the polyhedron 1022, and four light spots 2 can be formed.

[0076] refer to Figure 4 As shown, under the condition of increasing the height of the polyhedron 1022, the inclination angle of the side surface of the polyhedron 1022 becomes larger, so that the refraction angle of the light increases, and therefore the spacing between the four light spots 2 formed by the polyhedron 1022 increases. Therefore, relative to the polyhedron 1022 with a reduced height or no increased height, the light spots 2 generated by the polyhedron 1022 with an increased height move outward, so that the overlapping area between the light spots 2 generated by the polyhedrons 1022 with different heights is reduced, thereby making the light of the light guide 1 diffuse evenly and covering a larger range.

[0077] Similarly, reference Figure 4As shown, under the condition of reducing the height of the polyhedron 1022, the inclination angle of the side surface of the polyhedron 1022 becomes smaller, so that the refraction angle of the light is reduced, and therefore the spacing between the four light spots 2 formed by the polyhedron 1022 is reduced. Therefore, relative to the polyhedron 1022 with an increased height or the height not reduced, the light spots 2 generated by the polyhedron 1022 with a reduced height move inward, so that the overlapping area between the light spots 2 generated by the polyhedrons 1022 with different heights is reduced, thereby making the light of the light guide 1 diffuse evenly and covering a larger range.

[0078] Optionally, at least two preset light emitting areas may be divided on the light emitting surface 1011, and between two adjacent preset light emitting areas, the heights of the polyhedrons 1022 are equal or unequal. For example, in two adjacent preset light emitting areas, the light guide portion 102 of one preset light emitting area is provided with a first polyhedron 1022a, and the light guide portion 102 of the other preset light emitting area is provided with a second polyhedron 1022b.

[0079] Further, the height of the polyhedron 1022 in the preset light-emitting area is increased or decreased, and then the light spot 2 generated by the light guide 1 is detected, for example, by experimental detection or simulation detection. When it is determined that the light spot 2 generated by the preset light-emitting area does not fall on the preset area to be irradiated, the height of the polyhedron 1022 in the preset light-emitting area is increased or decreased again.

[0080] When it is determined that the light spot 2 generated by the preset light emitting area falls on the preset area to be irradiated, the height of the polyhedron 1022 in the remaining preset light emitting areas is increased or decreased, and the light spot 2 generated by the light guide 1 is detected.

[0081] In this embodiment, by increasing or decreasing the heights of the polyhedrons 1022 of different preset light emitting areas of the light guide 1 , the light spot 2 generated by the light guide 1 is distributed more evenly and covers a larger area.

[0082] In some embodiments provided by the present invention, the height of the first polyhedron 1022a may also be equal to the height of the second polyhedron 1022b, so that the first polyhedron 1022a and the second polyhedron 1022b can also scatter light.

[0083] Furthermore, the vertices of the first polyhedron 1022a may be offset relative to the center of the bottom surface, or the vertices of the second polyhedron 1022b may be offset relative to the center of the bottom surface, so that the light spot generated by the first polyhedron 1022a or the second polyhedron 1022b is offset. Alternatively, the distribution positions of the first polyhedron 1022a and the second polyhedron 1022b may be adjusted to offset the light spot generated by the first polyhedron 1022a or the second polyhedron 1022b.

[0084] Of course, it is understandable that the method is not limited to increasing or decreasing the height of the multi-faceted surface to make the light spot 2 generated by the light guide 1 more evenly distributed and cover a larger area. Figure 5 and Figure 6 As shown, in other embodiments provided by the present invention, the plurality of light guide portions 102 include a third light guide portion 1025 and a fourth light guide portion 1026 .

[0085] The third light guide portion 1025 includes a third polyhedron 1022c, and the fourth light guide portion 1026 includes a fourth polyhedron 1022d. For example, the third polyhedron 1022c and the fourth polyhedron 1022d are both configured as pyramids, and the bottom surfaces of the pyramids are respectively disposed on the corresponding light guide bosses 1021.

[0086] Among them, along the direction perpendicular to the extension direction A of the light guide portion 102, the offset of the vertices of the third polyhedron 1022c relative to the center of the bottom surface of the third polyhedron 1022c is equal to or different from the offset of the vertices of the fourth polyhedron 1022d relative to the center of the bottom surface of the fourth polyhedron 1022d.

[0087] It should be noted that the above offset refers to the offset distance of the projection point relative to the center point of the bottom surface of the polyhedron 1022 when the vertex of the polyhedron 1022 (the center point of its top surface when the polyhedron 1022 is a frustum) is projected toward the bottom surface.

[0088] Optionally, the offset of the vertices of the third polyhedron 1022c relative to the center of the base of the third polyhedron 1022c is not equal to the offset of the vertices of the fourth polyhedron 1022d relative to the center of the base of the fourth polyhedron 1022d, including: the offset of the vertices of the third polyhedron 1022c relative to the center of the base of the third polyhedron 1022c is greater than or less than the offset of the vertices of the fourth polyhedron 1022d relative to the center of the base of the fourth polyhedron 1022d.

[0089] For example Figure 6 As shown, the offset of the vertices of the fourth polyhedron 1022d relative to the center of the bottom surface of the fourth polyhedron 1022d is E, and E is greater than or equal to 0.

[0090] Optionally, the offset of the vertices of the third polyhedron 1022c relative to the center of the bottom surface of the third polyhedron 1022c is equal to the offset of the vertices of the fourth polyhedron 1022d relative to the center of the bottom surface of the fourth polyhedron 1022d, which includes:

[0091] The vertex offset of the third polyhedron 1022c and the vertex offset of the fourth polyhedron 1022d are both greater than zero and equal. Alternatively, the vertex offset of the third polyhedron 1022c and the vertex offset of the fourth polyhedron 1022d are both zero. In the case where the vertex offset of the third polyhedron 1022c and the vertex offset of the fourth polyhedron 1022d are both zero, the position or height of the third polyhedron 1022c or the fourth polyhedron 1022d can be adjusted.

[0092] For the sake of convenience, the polyhedron 1022 is set as a quadrangular pyramid as an example, and the other pyramids can be deduced in the same way. In this embodiment, after entering from the bottom surface of the polyhedron 1022, the light is refracted and emitted from the four side surfaces of the polyhedron 1022, and four light spots 2 can be formed.

[0093] refer to Figure 6 As shown, under the condition that the vertices of the polyhedron 1022 are offset, along the offset direction of the vertices, the inclination angle of one side surface of the polyhedron 1022 becomes larger, thereby increasing the refraction angle of the light, and the inclination angle of the other side surface becomes smaller, thereby reducing the refraction angle of the light. Under the condition that the height of the polyhedron 1022 remains unchanged, the inclination angles of the other two side surfaces of the polyhedron 1022 do not change, so the refraction angle of the light remains unchanged.

[0094] In the polyhedron 1022, the light spot 2 generated by the side surface with a larger inclination angle deviates in the direction opposite to the vertex deviation direction. The light spot 2 generated by the side surface with a smaller inclination angle also deviates in the direction opposite to the vertex deviation direction.

[0095] For example, refer to Figure 6 As shown in the figure, the vertex of the fourth polyhedron 1022d is offset to the right relative to the center of the bottom surface, and the inclination angle of the side surface on the right side of the fourth polyhedron 1022d becomes larger, and the light spot 2 generated by the side surface on the right side is offset to the left. The inclination angle of the side surface on the left side of the fourth polyhedron 1022d becomes smaller, and the light spot 2 generated by the side surface on the left side is offset to the left.

[0096] Therefore, relative to the polyhedron 1022 with a smaller vertex deviation or no vertex deviation, at least part of the light spot 2 generated by the polyhedron 1022 with a larger deviation is offset in a direction opposite to the vertex deviation direction, thereby reducing the overlapping area between the light spots 2 generated by the polyhedron 1022 with different deviations, thereby making the light diffusion of the light guide 1 uniform and covering a larger range.

[0097] Optionally, at least two preset light emitting areas may be divided on the light emitting surface 1011, and between two adjacent preset light emitting areas, the offsets of the vertices of the polyhedron 1022 are equal or unequal. For example, in two adjacent preset light emitting areas, the light guide portion 102 of one preset light emitting area is provided with a third polyhedron 1022c, and the light guide portion 102 of the other preset light emitting area is provided with a fourth polyhedron 1022d.

[0098] Further, the offset of the vertices of the polyhedron 1022 in the preset light-emitting area is increased or decreased, and then the light spot 2 generated by the light guide 1 is detected, for example, by experimental detection or simulation detection. When it is determined that the light spot 2 generated by the preset light-emitting area does not fall on the preset area to be irradiated, the offset of the vertices of the polyhedron 1022 in the preset light-emitting area is increased or decreased again.

[0099] When it is determined that the light spot 2 generated by the preset light emitting area falls on the preset area to be irradiated, the offset of the vertices of the polyhedron 1022 in the remaining preset light emitting areas is increased or decreased, and the light spot 2 generated by the light guide 1 is detected.

[0100] In this embodiment, by increasing or decreasing the offsets of the vertices of the polyhedron 1022 in different preset light emitting areas of the light guide 1 , the light spot 2 generated by the light guide 1 is distributed more evenly and covers a larger area.

[0101] It can be understood that the first polyhedron 1022a and the third polyhedron 1022c may refer to the same polyhedron 1022, that is, when adjusting the position of the light spot 2 of the light guide 1, the height and the deviation of the vertices of one polyhedron 1022 may be adjusted at the same time. Alternatively, the first polyhedron 1022a and the third polyhedron 1022c may refer to different polyhedrons 1022, so that when adjusting the position of the light spot 2 of the light guide 1, the heights or the deviations of the vertices of different polyhedrons 1022 may be adjusted respectively.

[0102] Similarly, the second polyhedron 1022 b and the fourth polyhedron 1022 d may refer to the same polyhedron 1022 , or may refer to different polyhedrons 1022 .

[0103] refer to Figure 2 As shown, in some embodiments provided by the present invention, a polyhedron 1022 is disposed on a light-guiding boss 1021 .

[0104] For example, the light emitting surface 1011 has different inclination angles in two different directions, and a plurality of light guiding bosses 1021 form step shapes in two directions on the light emitting surface 1011, and a polyhedron 1022 can be disposed on each light guiding boss 1021. Figure 2As shown in , the plurality of light-guiding bosses 1021 form a step shape in the vertical direction and also form a step shape in the horizontal direction, and a polyhedron 1022 is disposed on each of the light-guiding bosses 1021 .

[0105] Of course, the light guide boss 1021 is not limited to being provided with a single polyhedron 1022. Figure 7 As shown, in other embodiments provided by the present invention, at least two polyhedrons 1022 are disposed on the light-guiding boss 1021 .

[0106] For example, the light emitting surface 1011 has an inclination angle in only one direction, and the multiple light guiding bosses 1021 only form a step shape in one direction on the light emitting surface 1011, then at least two polyhedrons 1022 can be provided on each light guiding boss 1021. The arrangement direction of the polyhedrons 1022 on each light guiding boss 1021 intersects with the arrangement direction of the multiple light guiding bosses 1021, for example, the arrangement direction of the polyhedrons 1022 on the light guiding boss 1021 is perpendicular to the arrangement direction of the light guiding boss 1021.

[0107] Furthermore, for the at least two polyhedrons 1022 on the light guiding boss 1021 , on the same light guiding boss 1021 , the heights of the at least two polyhedrons 1022 may be equal or unequal. Similarly, the deviations of the vertices of the at least two polyhedrons 1022 may be equal or unequal.

[0108] In some embodiments provided by the present invention, the angle between the extension direction A of the light-guiding boss 1021 and the normal direction of the light-emitting surface 1011 where the light-guiding boss 1021 is located is an acute angle or zero degree. In this configuration, since the angle between the extension direction A of the light-guiding boss 1021 and the normal direction of the light-emitting surface 1011 is small, the light emitted from the light-emitting surface 1011 of the main body 101 can better enter the light-guiding portion 102, which helps to reduce the loss of light during transmission and improve the overall light efficiency utilization rate.

[0109] In some embodiments provided by the present invention, the light emitting surface 1011 is a straight surface. The geometric shape of the straight light emitting surface 1011 is relatively simple, and due to its symmetry, it is easier to control the size and precision during the production process.

[0110] Of course, the light emitting surface 1011 is not limited to being set as a plane. For example, in other embodiments provided by the present invention, the light emitting surface 1011 is a curved surface. For example, the light emitting surface 1011 is a convex curved surface, so that the light emitting surface 1011 has a better diffusion effect on the light. Alternatively, the light emitting surface 1011 is a concave curved surface, so that the light emitting surface 1011 has a better convergence effect on the light. It is understandable that in actual use, the light emitting surface 1011 can be set as a concave or convex curved surface according to actual needs.

[0111] In some embodiments not shown, the light emitting surface 1011 may also be an irregular surface formed by a combination of a plane and a curved surface.

[0112] A lighting system is also provided in an embodiment of the present invention.

[0113] Specifically, the lamp system includes the light guide 1 as described above. Of course, the lamp system also has a light source module, which is used to irradiate light to the light guide 1. It is understandable that other optical elements can be provided between the light source module and the light guide 1 to transmit, converge or refract the light. This application does not involve improvements to the light source module and other optical elements, so no further description will be given.

[0114] It should be noted that the lamp system includes the light guide 1, and also includes all the above advantages of the light guide 1, so it will not be described in detail.

[0115] refer to Figure 8 As shown, in some embodiments provided by the present invention, the number of the light guide members 1 is at least two, and they include a first light guide member 103 and a second light guide member 104 .

[0116] At least part of the light guide portion 102 of the first light guide 103 includes a fifth polyhedron 1022e, and at least part of the light guide portion 102 of the second light guide 104 includes a sixth polyhedron 1022f, and the fifth polyhedron 1022e and the sixth polyhedron 1022f are both pyramids or prisms. For example, the bottom surface of the pyramid or prism is arranged on the corresponding light guide boss 1021. The extension direction A of the light guide boss 1021 of the first light guide 103 and the second light guide 104 is consistent.

[0117] The height of the fifth polyhedron 1022e is equal to or different from the height of the sixth polyhedron 1022f along the extension direction A of the light-guiding boss 1021. The height of the fifth polyhedron 1022e is different from the height of the sixth polyhedron 1022f including: the height of the fifth polyhedron 1022e is greater than or less than the height of the sixth polyhedron 1022f.

[0118] For the sake of convenience, the polyhedron 1022 is set as a quadrangular pyramid as an example, and other pyramids or frustums can be deduced in the same way. In this embodiment, after entering from the bottom surface of the polyhedron 1022, the light is refracted and emitted from the four side surfaces of the polyhedron 1022, and four light spots 2 can be formed.

[0119] refer to Figure 4As shown, when the height of the polyhedron 1022 is increased, the inclination angle of the side surface of the polyhedron 1022 becomes larger, so that the refraction angle of the light increases, and thus the spacing between the four light spots 2 formed by the polyhedron 1022 increases. Therefore, relative to the polyhedron 1022 with a reduced height or no increased height, the light spots 2 generated by the polyhedron 1022 with an increased height move outward, so that the overlapping area between the light spots 2 generated by the polyhedrons 1022 with different heights is reduced, thereby making the light diffusion of the lamp system uniform and covering a larger range.

[0120] Similarly, reference Figure 4 As shown, under the condition of reducing the height of the polyhedron 1022, the inclination angle of the side surface of the polyhedron 1022 becomes smaller, so that the refraction angle of the light is reduced, and therefore the spacing between the four light spots 2 formed by the polyhedron 1022 is reduced. Therefore, relative to the polyhedron 1022 with an increased height or the height not reduced, the light spots 2 generated by the polyhedron 1022 with a reduced height move inward, so that the overlapping area between the light spots 2 generated by the polyhedrons 1022 with different heights is reduced, thereby making the light diffusion of the lamp system uniform and covering a larger range.

[0121] Optionally, in the process of designing the lamp system, the height of at least part of the polyhedron 1022 in the first light guide 103 is increased or decreased, and then the light spot 2 generated by the lamp system is detected, for example, by experimental detection or simulation detection. When it is determined that the light spot 2 generated by the first light guide 103 does not fall on the preset area to be irradiated, the height of at least part of the polyhedron 1022 in the first light guide 103 is increased or decreased again.

[0122] When it is determined that the light spot 2 generated by the first light guide 103 falls on the preset area to be irradiated, the height of at least part of the polyhedron 1022 in the second light guide 104 is increased or decreased, and the light spot 2 generated by the light guide 1 is detected.

[0123] In this embodiment, by increasing or decreasing the height of at least a portion of the polyhedrons 1022 of different light guide members 1 , the light spot 2 generated by the lamp system is distributed more evenly and covers a larger area.

[0124] In some embodiments provided by the present invention, the height of the fifth polyhedron 1022e may also be equal to the height of the sixth polyhedron 1022f, so that the fifth polyhedron 1022e and the sixth polyhedron 1022f can also scatter light.

[0125] Further, the vertices of the fifth polyhedron 1022e may be offset relative to the center of the bottom surface, or the vertices of the sixth polyhedron 1022f may be offset relative to the center of the bottom surface, so that the light spot generated by the fifth polyhedron 1022e or the sixth polyhedron 1022f is offset. Alternatively, the distribution positions of the fifth polyhedron 1022e and the sixth polyhedron 1022f may be adjusted so that the light spot generated by the fifth polyhedron 1022e or the sixth polyhedron 1022f is offset.

[0126] In some embodiments provided by the present invention, the number of the light guide members 1 is at least two, and includes a first light guide member 103 and a second light guide member 104 .

[0127] At least part of the light guide portion 102 of the first light guide member 103 includes a seventh polyhedron 1022g, and at least part of the light guide portion 102 of the second light guide member 104 includes an eighth polyhedron 1022h, and the seventh polyhedron 1022g and the eighth polyhedron 1022h are both pyramids or prisms. For example, the bottom surface of the pyramid or prism is arranged on the corresponding light guide boss 1021. The extension direction A of the light guide boss 1021 of the first light guide member 103 and the second light guide member 104 is consistent.

[0128] The offset of the vertices of the seventh polyhedron 1022g relative to the center of the bottom surface of the seventh polyhedron 1022g is equal to or different from the offset of the vertices of the eighth polyhedron 1022h relative to the center of the bottom surface of the eighth polyhedron 1022h.

[0129] Specifically, the offset of the vertices of the seventh polyhedron 1022g relative to the center of the base of the seventh polyhedron 1022g is not equal to the offset of the vertices of the eighth polyhedron 1022h relative to the center of the base of the eighth polyhedron 1022h, including: the offset of the vertices of the seventh polyhedron 1022g relative to the center of the base of the seventh polyhedron 1022g is greater than or less than the offset of the vertices of the eighth polyhedron 1022h relative to the center of the base of the eighth polyhedron 1022h.

[0130] Optionally, the offset of the vertices of the seventh polyhedron 1022g relative to the center of the bottom surface of the seventh polyhedron 1022g is equal to the offset of the vertices of the eighth polyhedron 1022h relative to the center of the bottom surface of the eighth polyhedron 1022h, including:

[0131] The vertex offset of the seventh polyhedron 1022g and the vertex offset of the eighth polyhedron 1022h are both greater than zero and equal. Alternatively, the vertex offset of the seventh polyhedron 1022g and the vertex offset of the eighth polyhedron 1022h are both zero. In the case where the vertex offset of the seventh polyhedron 1022g and the vertex offset of the eighth polyhedron 1022h are both zero, the position or height of the seventh polyhedron 1022g or the eighth polyhedron 1022h can be adjusted.

[0132] It should be noted that the above offset refers to the offset distance of the projection point relative to the center point of the bottom surface of the polyhedron 1022 when the vertex of the polyhedron 1022 (the center point of its top surface when the polyhedron 1022 is a frustum) is projected toward the bottom surface.

[0133] For the sake of convenience, the polyhedron 1022 is set as a quadrangular pyramid as an example, and other pyramids or frustums can be deduced in the same way. In this embodiment, after entering from the bottom surface of the polyhedron 1022, the light is refracted and emitted from the four side surfaces of the polyhedron 1022, and four light spots 2 can be formed.

[0134] refer to Figure 6 As shown, under the condition that the vertices of the polyhedron 1022 are offset, along the offset direction of the vertices, the inclination angle of one side surface of the polyhedron 1022 becomes larger, thereby increasing the refraction angle of the light, and the inclination angle of the other side surface becomes smaller, thereby reducing the refraction angle of the light. Under the condition that the height of the polyhedron 1022 remains unchanged, the inclination angles of the other two side surfaces of the polyhedron 1022 do not change, so the refraction angle of the light remains unchanged.

[0135] In the polyhedron 1022, the light spot 2 generated by the side surface with a larger inclination angle deviates in the direction opposite to the vertex deviation direction. The light spot 2 generated by the side surface with a smaller inclination angle also deviates in the direction opposite to the vertex deviation direction.

[0136] Therefore, relative to the polyhedron 1022 with reduced vertex deviation or no vertex deviation, at least part of the light spot 2 generated by the polyhedron 1022 with a larger deviation is offset in a direction opposite to the vertex deviation direction, thereby reducing the overlapping area between the light spots 2 generated by the polyhedron 1022 with different deviations, thereby making the light diffusion of the light guide 1 uniform and covering a larger range.

[0137] Optionally, in the process of designing the lamp system, the offset of at least part of the vertices of the polyhedron 1022 in the first light guide 103 is increased or decreased, and then the light spot 2 generated by the lamp system is detected, for example, by experimental detection or simulation detection. When it is determined that the light spot 2 generated by the first light guide 103 does not fall on the preset area to be irradiated, the offset of at least part of the vertices of the polyhedron 1022 in the first light guide 103 is increased or decreased again.

[0138] When it is determined that the light spot 2 generated by the first light guide 103 falls on the preset area to be irradiated, the offset of at least part of the vertices of the polyhedron 1022 in the second light guide 104 is increased or decreased, and the light spot 2 generated by the lamp system is detected.

[0139] In this embodiment, by increasing or decreasing the offset of at least some of the vertices of the polyhedrons 1022 of different light guide members 1 , the light spot 2 generated by the lamp system is distributed more evenly and covers a larger area.

[0140] Optionally, when the lamp system is applied to a vehicle, when the lamp system includes two light guides 1, the two light guides 1 may be distributed on both sides of the vehicle, for example, distributed at positions corresponding to two headlights of the vehicle. When the lamp system includes three light guides 1, two light guides 1 are distributed on both sides of the vehicle, for example, two light guides 1 are distributed at positions corresponding to two headlights of the vehicle, and another light guide 1 is arranged between the two light guides 1.

[0141] like Fig. 9 As shown, the applicant conducted an optical simulation on the lamp system based on the adjusted light guide 1. Fig. 9 It can be seen that the light spot coverage produced by the lighting system is continuous and uniform, which can meet the relevant requirements of lighting.

[0142] A vehicle is also provided in an embodiment of the present invention.

[0143] Specifically, the vehicle includes the light guide member 1 as described above or the lamp system as described above.

[0144] It should be noted that the vehicle includes the light guide 1 or the lamp system, and also includes all the above advantages of the light guide 1 or the lamp system, so it will not be described in detail.

[0145] Optionally, the light guide 1 can be used for a daytime running light, a turn signal light or a position light of a vehicle.

[0146] Optionally, the vehicle can be a fuel vehicle or a new energy electric vehicle.

[0147] In addition, the above-mentioned light guide member 1 and lamp system are not limited to use in vehicles, and any equipment or scene that requires lighting can use the above-mentioned light guide member 1 and lamp system.

[0148] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A light guide, characterized in that: include: A main body (101), the main body (101) is used to conduct light and is provided with a light emitting surface (1011) for emitting light; A light guiding portion (102), wherein the number of the light guiding portions (102) is multiple, and the multiple light guiding portions (102) each comprise a light guiding boss (1021) and a polyhedron (1022), wherein the light guiding boss (1021) is arranged on the light emitting surface (1011), and the extension direction (A) of the light guiding boss (1021) of at least some of the light guiding portions (102) is consistent, and along the extension direction (A), the polyhedron (1022) is arranged at one end of the light guiding boss (1021) away from the light emitting surface (1011).

2. The light guide according to claim 1, characterized in that: The polyhedron (1022) is configured as a pyramid or a prism, and the bottom surface of the pyramid or the prism is configured on the light-guiding boss (1021); And / or, the light-guiding boss (1021) is configured as a rectangular parallelepiped.

3. The light guide according to claim 2, characterized in that: The plurality of light guide portions (102) include a first light guide portion (1023) and a second light guide portion (1024), wherein the first light guide portion (1023) includes a first polyhedron (1022a), and the second light guide portion (1024) includes a second polyhedron (1022b); Wherein, along the extension direction (A), the height of the first polyhedron (1022a) is equal to or different from the height of the second polyhedron (1022b).

4. The light guide according to claim 2, characterized in that: The plurality of light guide portions (102) include a third light guide portion (1025) and a fourth light guide portion (1026), wherein the third light guide portion (1025) includes a third polyhedron (1022c), and the fourth light guide portion (1026) includes a fourth polyhedron (1022d); The offset of the vertices of the third polyhedron (1022c) relative to the center of the bottom surface of the third polyhedron (1022c) is equal to or different from the offset of the vertices of the fourth polyhedron (1022d) relative to the center of the bottom surface of the fourth polyhedron (1022d).

5. The light guide according to any one of claims 1 to 4, characterized in that: One or at least two of the polyhedrons (1022) are arranged on the light-guiding boss (1021).

6. The light guide (1) according to any one of claims 1 to 4, characterized in that: The angle between the extension direction (A) of the light-guiding portion (102) and the normal direction of the light-emitting surface (1011) where the light-guiding boss (1021) is located is an acute angle or zero degree; And / or, the light emitting surface (1011) is a straight surface or a curved surface.

7. A lighting system, characterized in that: It comprises the light guide (1) as claimed in any one of claims 1 to 6.

8. The lighting system according to claim 7, characterized in that: The number of the light guide members (1) is at least two, and the light guide members (1) include a first light guide member (103) and a second light guide member (104); at least part of the light guide portion (102) of the first light guide member (103) includes a fifth polyhedron (1022e); at least part of the light guide portion (102) of the second light guide member (104) includes a sixth polyhedron (1022f); and both the fifth polyhedron (1022e) and the sixth polyhedron (1022f) are pyramids or prisms; Wherein, along the extension direction (A), the height of the fifth polyhedron (1022e) is equal to or different from the height of the sixth polyhedron (1022f).

9. The lighting system according to claim 7, characterized in that: The number of the light guide members (1) is at least two, and the light guide members (1) include a first light guide member (103) and a second light guide member (104); at least part of the light guide portion (102) of the first light guide member (103) includes a seventh polyhedron (1022g); at least part of the light guide portion (102) of the second light guide member (104) includes an eighth polyhedron (1022h); and both the seventh polyhedron (1022g) and the eighth polyhedron (1022h) are pyramids or prisms; Among them, the offset of the vertices of the seventh polyhedron (1022g) relative to the center of the bottom surface of the seventh polyhedron (1022g) is equal to or different from the offset of the vertices of the eighth polyhedron (1022h) relative to the center of the bottom surface of the eighth polyhedron (1022h).

10. A vehicle, characterized in that: It comprises the light guide (1) as claimed in any one of claims 1 to 6 or the lighting system as claimed in any one of claims 7 to 9.

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