Light guide plate structure, automobile signal lamp and vehicle
By employing a two-reflection design in the light guide plate structure, the problem of dark areas at the edges and corners of the light guide plate is solved, resulting in a more uniform brightness distribution and visual effect.
Patent Information
- Application Number
- CN202422092166.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-08-27
AI Technical Summary
Existing light guide plates in vehicle signal lights have dark areas at the edges and corners, which affects the visual effect and aesthetics.
The light guide plate structure is designed to form a light path through two reflections by the first and second reflective parts, and the light is emitted from the light-emitting surface to cover the light-emitting surface and solve the problem of dark areas at the edges and corners.
It improves the brightness uniformity of the light guide plate, enhances the visual effect, and ensures that dark areas at the edges are also fully illuminated.
Smart Images
Figure CN223679389U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of automobile signal lights, in particular to a light guide plate structure, an automobile signal light and a vehicle. BACKGROUND
[0002] Light guide plates are widely used in the field of vehicle-mounted signal lights, however, due to the requirements of modeling and use space, the existing light source arrangement scheme often cannot guarantee the uniformity of the brightness of the light-emitting surface and has dead angles, thereby affecting the visual effect and reducing the aesthetic level. CONTENT OF THE UTILITY MODEL
[0003] The present application aims to solve at least one of the technical problems existing in the prior art.
[0004] According to a first aspect of the present application, a light guide plate structure for an automobile signal light is provided, comprising: a light-incident surface, from which a light-emitting source is incident; a light-emitting surface; a light-reflecting part, which comprises a first light-reflecting part and a second light-reflecting part, the light-emitting source being reflected at least twice by the first light-reflecting part and the second light-reflecting part to emit light from the light-emitting surface, so as to cover the light-emitting surface with the light beam. The present application can form a light path through twice reflection of the light-reflecting part, emit light from the light-emitting surface, and solve the problem of dark corners of the light guide plate.
[0005] Optionally, the first light-reflecting part is located opposite the light-emitting surface.
[0006] Optionally, the second light-reflecting part is located on the side of the light-emitting surface.
[0007] Optionally, the first light-reflecting part reflects light emitted by a first light-emitting source once to form a first light path, and the light-emitting source comprises the first light-emitting source.
[0008] Optionally, the direction of the first light path is the same as the main light-emitting direction.
[0009] Optionally, the first light-reflecting part reflects light emitted by a second light-emitting source once to form a second light path, and the light-emitting source comprises the second light-emitting source.
[0010] Optionally, the angle α between the direction of the second light path and the main light-emitting direction is twice the angle β between the direction of the second light-reflecting part and the main light-emitting direction.
[0011] Optionally, the angle between the direction of the second light path and the main light-emitting direction is an acute angle.
[0012] Optionally, the angle between the direction of the second light-reflecting part and the main light-emitting direction is an acute angle.
[0013] Optionally, the direction of the third light path is the same as the main light-out direction.
[0014] According to the second aspect of the present application, a car signal lamp is provided, comprising: a light source and the light guide plate structure of the first aspect.
[0015] Optionally, the light source comprises a third light source, the third light source moves a distance a1 along the main light-out direction; the light-reflecting part comprises a fourth light-reflecting part, the fourth light-reflecting part moves a distance a2 along the main light-out direction.
[0016] Optionally, the a1 = a2.
[0017] Optionally, the light source comprises a fourth light source, the fourth light source moves a distance b1 along the main light-out direction; the light-reflecting part comprises a fifth light-reflecting part, the fifth light-reflecting part moves a distance b2 along the main light-out direction.
[0018] Optionally, the b1 = b2.
[0019] According to the third aspect of the present application, a vehicle is provided, comprising: the light guide plate structure of the first aspect or the car signal lamp of the second aspect.
[0020] According to the light guide plate structure of the present application, the light source passes through the light-reflecting part twice to form a light path, and light is emitted from the light-out surface, so as to solve the problem of dark corners of the light guide plate, and the visual effect is better.
[0021] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS
[0022] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:
[0023] Figure 1 is a schematic diagram of a light guide plate structure according to an embodiment of the present application;
[0024] Figure 2 is a schematic diagram of a light guide plate structure according to another embodiment of the present application;
[0025] Figure 3 is a schematic diagram of a car signal lamp structure according to another embodiment of the present application;
[0026] LIST OF REFERENCE NUMERALS:
[0027] 1. Light guide plate structure 1
[0028] 10. light inlet surface
[0029] 20. light outlet surface
[0030] 30. light reflecting portion
[0031] 31. first light reflecting portion
[0032] 32. second light reflecting portion
[0033] 40. light emitting source
[0034] 41. first light emitting source
[0035] 42. second light emitting source
[0036] 43. third light emitting source
[0037] 44. fourth light emitting source
[0038] 50. light path
[0039] 51. first light path
[0040] 52. second light path
[0041] 53. third light path
[0042] 54. main light outlet direction
[0043] a. angle between second light path direction and main light outlet direction
[0044] b. angle between second light reflecting portion direction and main light outlet direction
[0045] al. distance of third light emitting source moving along main light emitting direction
[0046] a2. distance of fourth light reflecting portion moving along main light emitting direction
[0047] bl. distance of fourth light emitting source moving along main light emitting direction
[0048] b2. distance of fifth light reflecting portion moving along main light emitting direction
[0049] 100. automobile signal lamp DETAILED DESCRIPTION
[0050] Various exemplary embodiments of the present application will now be described in detail with reference to the figures. It should be noted that the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments are not limiting to the scope of the present application unless otherwise specifically stated.
[0051] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way limiting to the scope of the application or its applications or uses.
[0052] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art(s) can not be discussed in detail herein. However, where appropriate, the techniques, methods, and apparatus should be considered as being part of the specification.
[0053] In all of the compositions shown and discussed herein, any specific values should be interpreted as merely exemplary, and not a limitation. Thus, other examples of the exemplary embodiments can have different values.
[0054] It should be noted that like reference numerals and letters refer to like items throughout the attached drawings, and thus once an item is defined in one drawing, it is not necessary that it be further discussed in subsequent drawings.
[0055] The technical content, structural features, achieved purposes and effects of the present application are described in detail below, and the following describes in detail in combination with the embodiments and with reference to the drawings.
[0056] Referring to Figure 1 According to a first embodiment of the present application, a light guide plate structure 1 is provided, comprising a light inlet face 10, a light emitting source 40 is arranged to emit light from the light inlet face 10; a light outlet face 20; a light reflecting part 30, the light reflecting part 30 comprises a first light reflecting part 31 and a second light reflecting part 32, the light emitting source 40 is reflected by the first light reflecting part 31 and the second light reflecting part 32 at least twice, and the light is emitted from the light outlet face 20, so that the light beam covers the light outlet face 20. In the prior art, the light source is arranged uniformly on a line equidistant from the front light outlet face, and then the light is reflected by the reflecting face once to emit along the light path, the reflecting face generally has a special pattern, which breaks the coherence of the light to a certain extent, so that the light is diffusely reflected in the light guide, and most of the light is finally compounded and still emitted along the front. This scheme is simple and reliable, but it will cause dark areas at the corners, especially when looking obliquely, the dark areas are more obvious, because the area of the main light emitting direction is larger than that of the reflecting face, that is, there is the dark area. The scheme of the present application solves the problem of dark areas at the corners by using twice reflection of light, so that the visual effect is better. The light guide plate structure 1 of the present application has two light reflecting parts 30, the light reflecting part 30 comprises a first light reflecting part 31 and a second light reflecting part 32, and the light beam emitted by the light emitting source 40 is reflected at least twice by the first light reflecting part 31 and the second light reflecting part 32. Through at least twice reflection of the first light reflecting part 31 and the second light reflecting part 32 and / or first reflection of the first light reflecting part 31 and then reflection of the second light reflecting part 32, the light can be transmitted to a larger area of the light outlet face 20, so that the light beam covers the light outlet face 20, and the light beam can light up the dark area.
[0057] In some possible embodiments, the first reflecting part 31 is located opposite to the light exit face 20. The first reflecting part 31 reflects the light beam emitted by the light emitting source 40, and the light beam is emitted from the light exit face 20. The first reflecting part 31 is located opposite to the light exit face 20, so that the light beam emitted by the light emitting source 40 can be reflected to the maximum effect.
[0058] In some possible embodiments, the second reflecting part 32 is located at the side of the light exit face 20. When the light beam emitted by the light emitting source 40 passes through the first reflecting part 31, most of the light beam has passed through the light exit face 20. In addition, the reflecting part further comprises the second reflecting part 32. The second reflecting part 32 reflects the light beam reflected by the first reflecting part 31, and the light beam is emitted from the light exit face 20. The second reflecting part 32 is located at the dark area side of the light guide plate structure 1, and / or the second reflecting part 32 is located at the side of the light exit face 20. The second reflecting part 32 is located at this position, so that the light emitting effect of the corner dark area after being lighted is basically consistent with the light emitting effect of the normal light emitting area. The second reflecting part 32 can effectively reflect the light beam emitted by the light emitting source 40 to the dark area, and increase the brightness of the dark area.
[0059] Referring to Figure 2 and Figure 3 In some possible embodiments, the first reflecting part 31 reflects the light emitted by the first light emitting source 41 once to form the first light path 51, and the light is emitted from the light exit face 20. The light emitting source 40 comprises the first light emitting source 41. The first reflecting part 31 reflects the light once to form the first light path 51. In the light guide plate structure 1, the first light path 51 is the direction of most of the light paths. The first light emitting source 41 provides the light beam for the first light path 51, so that the light can be emitted uniformly to the maximum extent on the light exit face 20.
[0060] In some possible embodiments, the direction of the first light path 51 is the same as the main light emitting direction 54. The main light emitting direction 54 of the light guide plate structure 1 is generally the direction of the front of the vehicle and / or the direction of the back of the vehicle. In addition, the main light emitting direction 54 can also be the direction of the side of the vehicle. That is, the light emitted by the automobile signal lamp can be observed by the pedestrians in the direction of the front of the vehicle and / or the direction of the back of the vehicle, and also can be observed in the direction of the side of the vehicle. For the light in the front of the vehicle, the front direction of the vehicle is the main light emitting direction 54. For the light in the back of the vehicle, the back direction of the vehicle is the main light emitting direction 54. For the light in the side of the vehicle, the side direction of the vehicle is the main light emitting direction 54. The direction of the first light path 51 is the same as the main light emitting direction 54, so that the light in the main light emitting direction 54 can meet the light brightness requirement to the maximum extent, and the brightness is improved.
[0061] In some possible embodiments, the first reflective part 31 reflects the light emitted by the second light emitting source 42 once to form the second light path 52, and then the second reflective part 32 reflects the light twice to form the third light path 53, and the light is emitted from the light emitting surface 20; the light emitting source includes the second light emitting source 42. The first reflective part 31 reflects the light once to form the second light path 52, and then the second reflective part 32 reflects the light twice to form the third light path 53, and the light is emitted from the light emitting surface 20 at the position to be improved, and the light beam emitted by the second light emitting source 42 is reflected to the light emitting surface position, i.e., the dark area position, by the two reflections of the first reflective part 31 and the second reflective part 32, which can solve the problem of the dark area of the light guide plate.
[0062] In some possible embodiments, the angle α between the second light path 52 and the main light emitting direction 54 is twice the angle β between the second reflective part 32 and the main light emitting direction 54, i.e., α = 2β. In the case of meeting this condition, the direction of the third light path 53 is consistent with the main light emitting direction 54, and the dark area position can be illuminated.
[0063] In some possible embodiments, the angle between the second light path 52 and the main light emitting direction 54 is an acute angle. The optimal angle of the second light path 52 is an acute angle, and when it is a right angle or an obtuse angle, the light beam of the second light path 52 cannot be consistent with the main light emitting direction 54, and cannot be emitted from the light emitting surface 20, i.e., the acute angle is optimal.
[0064] In some possible embodiments, the angle between the third light path 53 and the main light emitting direction 54 is an acute angle. The optimal angle of the second reflective part 32 is an acute angle, and when it is a right angle or an obtuse angle, the light beam of the second light path 52 cannot be consistent with the main light emitting direction 54, and cannot be emitted from the light emitting surface 20, i.e., the acute angle is optimal.
[0065] In some possible embodiments, the direction of the third light path 53 is the same as the main light emitting direction 54. The main light emitting direction 54 of the light guide plate structure 1 is generally the direction of the front of the vehicle and / or the direction of the back of the vehicle, and can also be the direction of the side of the vehicle, i.e., a pedestrian can observe the light emitted by the automobile signal lamp in the direction of the front of the vehicle and / or the direction of the back of the vehicle, and can also observe the light in the direction of the side of the vehicle. For the front light of the automobile, the front direction of the vehicle is the main light emitting direction 54; for the rear light of the automobile, the rear direction of the vehicle is the main light emitting direction 54; for the side light of the automobile, the side direction of the vehicle is the main light emitting direction 54; the direction of the third light path 53 is the same as the main light emitting direction 54, which can maximize the light in the main light emitting direction 54 to meet the light brightness requirement, improve the brightness, and increase the brightness of the dark area.
[0066] According to a second embodiment of the present application, a car signal lamp 100 is provided, comprising a light emitting source and a light guide plate structure 1. The light emitting source is a light emitting source of the car signal lamp, which is distributed on the light guide plate structure 1, and the light beam of the light emitting source is emitted from the light emitting surface 20 through the reflection of the light emitting part.
[0067] In some possible embodiments, the light emitting source 40 comprises a third light emitting source 43, which is moved along the main light emitting direction by a distance a1; the light reflecting part comprises a fourth light reflecting part, which is moved along the main light emitting direction by a distance a2. In order to increase the light emitting route of the third light path 53, the second light source is added, and due to the addition of the second light source, there is a problem that the interval between the adjacent light sources is small and insufficient for inserting another light source. Here, the third light source and the fourth light source to be interfered are moved forward and backward along the main light emitting direction 54 by appropriate distances respectively, the third light emitting source 43 is moved along the main light emitting direction by a distance a1, and in the case that the third light source is moved, the fourth light reflecting part is moved along the main light emitting direction by a distance a2. Under the premise that the overall light emitting stroke of the light guide plate from the light reflecting surface to the light emitting surface 20 is large (generally not less than 60mm), the action of moving the two light sources here almost does not affect the brightness distribution of the light emitting surface 20.
[0068] In some possible embodiments, a1=a2. The third light emitting source 43 is moved along the main light emitting direction by a distance a1, and in the case that the third light source is moved, the fourth light reflecting part is moved along the main light emitting direction by a distance a2. The third light source and the fourth light reflecting part are moved by the same distance at the same time, which can ensure that the light emitting effect and the difference before moving are minimal, and the light emitting effect of the main light emitting direction 54 is ensured.
[0069] In some possible embodiments, the light emitting source 40 comprises a fourth light emitting source 44, which is moved along the main light emitting direction by a distance b1; the light reflecting part comprises a fifth light reflecting part, which is moved along the main light emitting direction by a distance b2. In order to increase the light emitting route of the third light path 53, the second light source is added, and due to the addition of the second light source, there is a problem that the interval between the adjacent light sources is small and insufficient for inserting another light source. Here, the third light source and the fourth light source to be interfered are moved forward and backward along the main light emitting direction 54 by appropriate distances respectively, the fourth light emitting source 44 is moved along the main light emitting direction by a distance b1, and in the case that the fourth light source is moved, the fifth light reflecting part is moved along the main light emitting direction by a distance b2. Under the premise that the overall light emitting stroke of the light guide plate from the light reflecting surface to the light emitting surface 20 is large (generally not less than 60mm), the action of moving the two light sources here almost does not affect the brightness distribution of the light emitting surface 20.
[0070] In some possible embodiments, b1=b2. The fourth light-emitting light source 44 is moved along the main light-emitting direction by a distance b1, and the fifth light-reflecting part is moved along the main light-emitting direction by a distance b2 at the same time when the fourth light source is moved. The fourth light source and the fifth light-reflecting part are moved by the same distance at the same time, which can ensure that the light-emitting effect and the difference before the movement are minimal, and the light-emitting effect of the main light-emitting direction 54 is ensured.
[0071] According to a third embodiment of the present application, a vehicle is provided, comprising a light guide plate structure or an automobile signal lamp.
[0072] The preferred embodiments of the present disclosure are described in detail above with reference to the drawings, but the present disclosure is not limited to the specific details of the above-described embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
[0073] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.
[0074] Furthermore, various different embodiments of the present disclosure can also be combined in any manner, as long as they do not deviate from the idea of the present disclosure, and they should also be considered as disclosed by the present disclosure.
Claims
1. A light guide plate structure, characterized by, A light guide plate structure for an automobile signal lamp comprises: a light inlet surface from which light emitting sources emit light; a light outlet surface; a light reflecting part, which comprises a first light reflecting part and a second light reflecting part, through which the light emitting sources reflect at least twice to emit light from the light outlet surface so that the light beams cover the light outlet surface.
2. The light guide plate structure according to claim 1, wherein The first light reflecting part is located opposite the light outlet surface.
3. The light guide plate structure according to claim 1, wherein The second light reflecting part is located at the side of the light outlet surface.
4. The light guide plate structure according to claim 2, wherein The first light reflecting part reflects light emitted by a first light emitting source once to form a first light path, which emits light from the light outlet surface; the light emitting sources comprise the first light emitting source.
5. The light guide plate structure according to claim 4, wherein The direction of the first light path is the same as the main light emitting direction.
6. The light guide plate structure according to claim 3, wherein The first light reflecting part reflects light emitted by a second light emitting source once to form a second light path, which reflects again by the second light reflecting part to form a third light path, which emits light from the light outlet surface; the light emitting sources comprise the second light emitting source.
7. The light guide plate structure according to claim 6, wherein The angle α between the direction of the second light path and the main light emitting direction is twice the angle β between the second light reflecting part and the main light emitting direction.
8. The light guide plate structure according to claim 7, wherein The angle between the direction of the second light path and the main light emitting direction is an acute angle.
9. The light guide plate structure according to claim 7, wherein The angle between the direction of the second light reflecting part and the main light emitting direction is an acute angle.
10. The light guide plate structure according to claim 6, wherein The direction of the third light path is the same as the main light emitting direction.
11. An automotive signal lamp characterized by It comprises: light emitting sources and a light guide plate structure according to any one of claims 1-10; The light emitting sources are distributed on the light guide plate structure.
12. The automotive signal lamp of claim 11, wherein, The light emitting sources comprise a third light emitting source, which moves a distance a1 along the main light emitting direction; the light reflecting part comprises a fourth light reflecting part, which moves a distance a2 along the main light emitting direction.
13. The automotive signal lamp of claim 12, wherein, The a1=a2.
14. The automotive signal lamp of claim 11, wherein, The light emitting sources comprise a fourth light emitting source, which moves a distance b1 along the main light emitting direction; the light reflecting part comprises a fifth light reflecting part, which moves a distance b2 along the main light emitting direction.
15. The automotive signal lamp of claim 14, wherein, The b1=b2.
16. A vehicle characterized by comprising: It comprises: a light guide plate structure according to any one of claims 1-10 or an automobile signal lamp according to any one of claims 11-15.