Light guide structure, vehicle lamp and vehicle
By setting a first total reflection surface and a second total reflection surface on the light guide body, the problem of traditional light guide structures being unable to illuminate large-angle tilted light-emitting surfaces in a narrow space is solved, achieving uniform illumination of vehicle lights and improving space utilization efficiency.
Patent Information
- Application Number
- CN202423252637.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Traditional light-guiding structures have difficulty illuminating the light-emitting surface of headlights that are tilted at a large angle and have a narrow internal space, resulting in poor lighting effects.
The light guide body is used, and a first total reflection surface and a second total reflection surface are set opposite to the light-emitting side. Part of the light is reflected by the first total reflection surface and part of the light is reflected by the second total reflection surface, so as to realize the total reflection of the light on the light-emitting side and ensure that the entire light-emitting surface is lit.
It improves the lighting effect of the headlights, avoids the defects of the light-emitting surface edge not being bright or only partially lit, and takes up less space.
Smart Images
Figure CN223484032U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automotive lighting technology, and more specifically, to a light guide structure, automotive lighting, and a vehicle. Background Technology
[0002] With the diversification of automotive headlight designs, more and more headlights with steeply angled light-emitting surfaces are appearing. However, due to limitations in the body panels, headlights often have very steeply angled light-emitting surfaces but limited internal space. Traditional light guide structures struggle to illuminate the entire light-emitting surface, resulting in defects at the boundary of the light-emitting surface when the headlight is lit, leading to poor lighting performance.
[0003] Therefore, how to improve the lighting effect of vehicle lights has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0004] In view of this, the purpose of this application is to provide a light guide structure to improve the lighting effect of vehicle lights.
[0005] Another objective of this application is to provide a vehicle lamp having the aforementioned light guide structure.
[0006] Another object of this application is to provide a vehicle having the aforementioned headlights.
[0007] To achieve the above objectives, this application provides the following technical solution:
[0008] A light guide structure, comprising:
[0009] The light guide body has two oppositely arranged ends, and includes an incident light side and an exit light side. The light guide body is provided with a first total reflection surface arranged opposite to the exit light side and a second total reflection surface arranged perpendicular to the exit light side. The second total reflection surface is located at any end of the light guide body, so that the incident light is reflected by the first total reflection surface and the second total reflection surface to the exit light side.
[0010] Optionally, in the above light guide structure, the light guide body is provided with a third total reflection surface, which is disposed opposite to the first total reflection surface, so that a portion of the incident light is reflected sequentially by the third total reflection surface and the first total reflection surface to the light emitting side.
[0011] Optionally, in the above light guide structure, the third total reflection surface includes multiple parabolic surfaces, and the concave side of the parabolic surfaces faces the inner side of the light guide body.
[0012] Optionally, in the above light guide structure, the first total reflection surface has a first angle with the light emitting side, and the first total reflection surface has a second angle with the light incident side, wherein the first angle and the second angle are complementary.
[0013] Optionally, in the above light guide structure, a first pattern is provided on the first total reflection surface so that a portion of the incident light is reflected by the first pattern and emitted from the light-emitting side;
[0014] The second total reflection surface is provided with a second pattern so that part of the incident light is reflected by the second pattern and emitted from the light-emitting side.
[0015] Optionally, in the above light guide structure, the first pattern includes a plurality of first convex ridges continuously distributed on the first total reflection surface; and / or,
[0016] The second pattern includes multiple second convex ridges continuously distributed on the second total reflective surface.
[0017] Optionally, in the above light guide structure, the first convex ridge includes at least two intersecting first reflective surfaces; and / or,
[0018] The second convex ridge includes at least two intersecting second reflective surfaces.
[0019] Optionally, in the above light guide structure, each of the second convex ridges is arranged on the second total reflection surface along at least two intersecting directions.
[0020] A vehicle light, comprising a light guide structure as described in any of the preceding claims.
[0021] A vehicle including the headlights described above.
[0022] The light guide structure provided in this application allows a portion of the incident light to be reflected by the first total internal reflection surface of the light guide body and then emitted through the light-emitting side. Simultaneously, a portion of the incident light entering the end of the light guide body is reflected by the second total internal reflection surface of the light guide body and then emitted through the light-emitting side. This allows the entire headlight to be illuminated through the light guide body. As can be seen from the above example, the light guide structure provided in this application can reflect all incident light incident on the light guide body to the light-emitting side through the first total internal reflection surface positioned opposite to the light-emitting side and the second total internal reflection surface positioned at any end of the light guide body. This illuminates the entire light-emitting side of the light guide structure, achieving the illumination effect of the entire headlight. This effectively avoids the defect of the light-emitting surface boundary of the light guide structure being unlit or partially lit when the headlight is illuminated, improving the headlight's illumination effect. Furthermore, the light guide structure is simpler and occupies less internal space in the headlight.
[0023] The technical features mentioned above, those to be mentioned below, and those shown individually in the accompanying drawings can be combined arbitrarily, provided that the combined technical features are not contradictory. All feasible combinations of features are the technical content explicitly described herein. Any one of the multiple sub-features contained in the same statement can be applied independently, without necessarily being applied together with other sub-features. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0025] Figure 1 A schematic diagram of the light guide structure provided in the embodiments of this application. Figure 1 ;
[0026] Figure 2 A schematic diagram of the light guide structure provided in the embodiments of this application. Figure 2 ;
[0027] Figure 3 A partial schematic diagram of the light guide structure provided in the embodiments of this application. Figure 1 ;
[0028] Figure 4 A partial schematic diagram of the light guide structure provided in the embodiments of this application. Figure 2 ;
[0029] Figure 5 This is a schematic diagram of the optical path of the light guide structure provided in an embodiment of this application.
[0030] Among them, 100 is the light guide body, 101 is the light-incident side, 102 is the light-outceasing side, 103 is the first total reflection surface, 1031 is the first pattern, 1032 is the first convex ridge, 1033 is the first reflection surface, 104 is the second total reflection surface, 1041 is the second pattern, 1042 is the second convex ridge, 1043 is the second reflection surface, 105 is the third total reflection surface, and 1051 is a parabolic-like surface. Detailed Implementation
[0031] The core of this application is to provide a light guide structure to improve the lighting effect of vehicle lights.
[0032] Another key aspect of this application is to provide a vehicle lamp with the aforementioned light guide structure.
[0033] Another key aspect of this application is to provide a vehicle with the aforementioned headlights.
[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0035] With the diversification of automotive headlight designs, more and more headlights with steeply angled light-emitting surfaces are appearing. However, due to limitations in the body panels, headlights often have very steeply angled light-emitting surfaces but limited internal space. Traditional light guide structures struggle to illuminate the entire light-emitting surface, resulting in defects at the boundary of the light-emitting surface when the headlight is lit, leading to poor lighting performance.
[0036] For this reason, Figure 1 As shown in the figure, this application discloses a light guide structure, including a light guide body 100. A first total reflection surface 103, disposed opposite to the light-emitting side 102, and a second total reflection surface 104 disposed at any end of the light guide body 100, reflect all incident light incident on the light guide body 100 to the light-emitting side 102, thereby illuminating the entire light-emitting side 102 of the light guide structure and achieving the illumination effect of the entire vehicle headlight. This effectively avoids the defect of the light-emitting surface boundary of the light guide structure being unlit or partially lit when the headlight is lit, improving the illumination effect of the headlight. Furthermore, the light guide structure is simpler and occupies less internal space in the headlight.
[0037] The following will combine Figures 1 to 5 The light guide structure disclosed in the embodiments of this application will be explained and described in detail.
[0038] like Figure 1As shown, the light guide body 100 has two oppositely arranged ends, and includes an incident light side 101 and an emitting light side 102. This allows light emitted from a light source to enter the light guide body 100 through the incident light side 101 and exit through the emitting light side 102, illuminating the light guide structure and achieving the lighting effect of a vehicle headlight. Simultaneously, the light guide body 100 is provided with a first total reflection surface 103 opposite to the emitting light side 102 and a second total reflection surface 104 perpendicular to the emitting light side 102, with the second total reflection surface 104 located at either end of the light guide body 100. When light emitted from the light source enters the light guide body 100 through the light-incident side 101, a portion of the incident light is reflected by the first total internal reflection surface 103 of the light guide body 100 and then emitted through the light-emitting side 102. Simultaneously, a portion of the incident light entering the end of the light guide body 100 is reflected by the second total internal reflection surface 104 of the light guide body 100 and then emitted through the light-emitting side 102. This illuminates the entire light-emitting side 102 of the light guide structure, achieving the lighting effect of the entire vehicle headlight. This effectively avoids the defect of the light-emitting surface boundary of the light guide structure being unlit or partially lit when the headlight is illuminated, thus improving the lighting effect of the headlight. Furthermore, the light guide structure is simpler and occupies less internal space in the headlight.
[0039] In some embodiments, such as Figures 1 to 5 As shown, the light guide body 100 may be provided with a third total reflection surface 105, and the third total reflection surface 105 is arranged opposite to the first total reflection surface 103, so that a portion of the incident light is reflected sequentially by the third total reflection surface 105 and the first total reflection surface 103 to be emitted from the light-emitting side 102. Optionally, as shown... Figure 2 As shown, the third total internal reflection surface 105 may include a plurality of parabolic surfaces 1051 arranged along the length direction of the light guide body 100, with the concave side of the parabolic surface 1051 facing the inner side of the light guide body 100 to form the third total internal reflection surface 105. This allows a portion of the incident light to be reflected by the third total internal reflection surface 105 to the first total internal reflection surface 103, and then reflected by the first total internal reflection surface 103 to the light emitting side 102 for emission. By employing the third total internal reflection surface 105 with parabolic surfaces 1051, uniform light distribution can be achieved, light loss can be reduced, and the lighting effect of the vehicle headlight can be improved.
[0040] In some embodiments, such as Figure 5As shown, the first total reflection surface 103 is inclinedly disposed between the light-incident side 101 and the light-emitting side 102 of the light guide body 100. The first total reflection surface 103 has two sides disposed opposite to each other. One side of the first total reflection surface 103 has a first included angle α with the light-emitting side 102, and the other side of the first total reflection surface 103 has a second included angle γ with the light-incident side 101. The first included angle α and the second included angle γ are complementary, that is, the sum of the first included angle α and the second included angle γ is 180°. This ensures that the light reflected by the first total reflection surface 103 can be emitted perpendicularly to the light-emitting side 102 and parallel to it, thereby improving the lighting effect of the vehicle headlight and increasing the illumination distance.
[0041] In some embodiments, such as Figure 3 and Figure 4 As shown, a first pattern 1031 can be provided on the first total reflection surface 103. Part of the incident light can be reflected by the first pattern 1031 to the light-emitting side 102, thereby causing the light entering the first total reflection surface 103 to be completely reflected to the light-emitting side 102. At the same time, a second pattern 1041 is provided on the second total reflection surface 104. Part of the incident light can be reflected by the second pattern 1041 to the light-emitting side 102, thereby causing the light entering the second total reflection surface 104 to be completely reflected to the light-emitting side 102, thus illuminating the brightness of the boundary area of the light guide structure.
[0042] In some embodiments, such as Figure 3As shown, the first pattern 1031 may include a plurality of first protruding ridges 1032 continuously distributed on the first total internal reflection surface 103, and each first protruding ridge 1032 may be arranged parallel to the first total internal reflection surface 103. Each first protruding ridge 1032 may include at least two intersecting first reflecting surfaces 1033, so that light incident on the first total internal reflection surface 103 is reflected by each first reflecting surface 1033, thereby causing the light incident on the first total internal reflection surface 103 to be totally reflected and emitted from the light-emitting side 102. Optionally, the first protruding ridge 1032 may include two intersecting first reflecting surfaces 1033, so that the cross-sectional shape of the first protruding ridge 1032 may be triangular, thereby allowing the light incident on the first total internal reflection surface 103 to be reflected by the two first reflecting surfaces 1033. The first protruding ridge 1032 may also include three first reflecting surfaces 1033, with adjacent first reflecting surfaces 1033 intersecting. The middle first reflecting surface 1033 may be parallel to the first total internal reflection surface 103, so that the cross-sectional shape of the first protruding ridge 1032 can be trapezoidal, allowing the three first reflecting surfaces 1033 to reflect light incident on the first total internal reflection surface 103. Alternatively, the first protruding ridge 1032 may include four, five, or more first reflecting surfaces 1033, so that the cross-sectional shape of the first protruding ridge 1032 can be a quadrilateral, pentagon, or other polygon, allowing each first reflecting surface 1033 to reflect light incident on the first total internal reflection surface 103.
[0043] In some embodiments, such as Figure 4As shown, the second pattern 1041 may include a plurality of second protruding ridges 1042 continuously distributed on the second total internal reflection surface 104, and each second protruding ridge 1042 may be arranged parallel to the second total internal reflection surface 104. Each second protruding ridge 1042 may include at least two intersecting second reflecting surfaces 1043, so that light incident on the second total internal reflection surface 104 is reflected by each second reflecting surface 1043, thereby causing the light incident on the second total internal reflection surface 104 to be totally reflected and emitted from the light-emitting side 102. Optionally, the second protruding ridge 1042 may include two intersecting second reflecting surfaces 1043, so that the cross-sectional shape of the second protruding ridge 1042 can be triangular, thereby allowing the two second reflecting surfaces 1043 to reflect light incident on the second total internal reflection surface 104. The second convex ridge 1042 may also include three second reflecting surfaces 1043, with adjacent second reflecting surfaces 1043 intersecting. The middle second reflecting surface 1043 may be parallel to the second total internal reflection surface 104, allowing the cross-sectional shape of the second convex ridge 1042 to be trapezoidal, thus reflecting light incident on the second total internal reflection surface 104 through the three second reflecting surfaces 1043. Alternatively, the second convex ridge 1042 may include four, five, or more second reflecting surfaces 1043, allowing the cross-sectional shape of the second convex ridge 1042 to be a quadrilateral, pentagon, or other polygon, thus reflecting light incident on the second total internal reflection surface 104 through each second reflecting surface 1043.
[0044] In the above embodiments, each of the second protruding ridges 1042 may also be arranged along at least two intersecting directions on the second total reflection surface 104. That is, some of the second protruding ridges 1042 may be arranged along a first direction on the second total reflection surface 104, and some of the second protruding ridges 1042 may be arranged along a second direction on the second total reflection surface 104. The first direction and the second direction have an included angle β, and 0° < β < 180°, thereby achieving total reflection of light incident on the second total reflection surface 104 to the light emitting side 102. Of course, each of the second protruding ridges 1042 may also be arranged along three or more intersecting directions on the second total reflection surface 104 to achieve total reflection of light incident on the second total reflection surface 104 to the light emitting side 102.
[0045] This application also discloses a vehicle lamp, including the light guide structure disclosed in the above embodiments. Therefore, the light guide structure has all the technical effects of the above-mentioned light guide structures, which will not be repeated here.
[0046] This application also discloses a vehicle, including a headlight, which is the same headlight disclosed in the above embodiments and therefore has all the technical effects of the above headlights, which will not be repeated here.
[0047] The terms "first" and "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units may not be defined in the listed steps or units, but may include steps or units not listed.
[0048] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A light guiding structure, characterized in that, include: The light guide body (100) has two oppositely arranged ends, and includes an incident light side (101) and an exit light side (102). The light guide body (100) is provided with a first total reflection surface (103) opposite to the exit light side (102) and a second total reflection surface (104) perpendicular to the exit light side (102). The second total reflection surface (104) is located at any end of the light guide body (100) so that the incident light is reflected by the first total reflection surface (103) and the second total reflection surface (104) to the exit light side (102) and emitted.
2. The light guide structure according to claim 1, characterized in that, The light guide body (100) is provided with a third total reflection surface (105), which is arranged opposite to the first total reflection surface (103) so that a portion of the incident light is reflected sequentially by the third total reflection surface (105) and the first total reflection surface (103) to the light-emitting side (102) for emission.
3. The light guide structure according to claim 2, characterized in that, The third total reflection surface (105) includes a plurality of parabolic surfaces (1051), and the concave side of the parabolic surfaces (1051) faces the inside of the light guide body (100).
4. The light guide structure according to claim 2, characterized in that, The first total reflection surface (103) has a first included angle with the light emitting side (102), and the first total reflection surface (103) has a second included angle with the light incident side (101), the first included angle and the second included angle being complementary.
5. The light guide structure according to claim 1, characterized in that, The first total reflection surface (103) is provided with a first pattern (1031) so that part of the incident light is reflected by the first pattern (1031) and emitted from the light-emitting side (102); The second total reflection surface (104) is provided with a second pattern (1041) so that part of the incident light is reflected by the second pattern (1041) and emitted from the light-emitting side (102).
6. The light guide structure according to claim 5, characterized in that, The first pattern (1031) includes a plurality of first raised ridges (1032) continuously distributed on the first total reflection surface (103); and / or, The second pattern (1041) includes a plurality of second convex ridges (1042) continuously distributed on the second total reflection surface (104).
7. The light guide structure according to claim 6, characterized in that, The first protruding ridge (1032) includes at least two intersecting first reflecting surfaces (1033); and / or, The second convex ridge (1042) includes at least two intersecting second reflective surfaces (1043).
8. The light guide structure according to claim 6, characterized in that, Each of the second protruding ridges (1042) is disposed on the second total reflection surface (104) along at least two intersecting directions.
9. A vehicle light, characterized in that, Includes the light guide structure as described in any one of claims 1 to 8.
10. A vehicle, characterized in that, Including the vehicle lights as described in claim 9.