Dimming structure and vehicle lamp

Abstract

The utility model belongs to the technical field of car lamps, and particularly relates to a dimming structure and a car lamp, the dimming structure comprises a dimming unit, the dimming unit comprises a first fully reflecting surface, a connecting surface and a second fully reflecting surface, the first fully reflecting surface and the second fully reflecting surface are arranged in a stepped mode, and a distance L is reserved between the first fully reflecting surface and the second fully reflecting surface, the lower end of the connecting surface is connected with the first fully reflecting surface, and the upper end is connected with the second fully reflecting surface. The segment difference design is adopted between the first total reflection surface and the second total reflection surface, so that the two total reflection surfaces are not located on the same plane, and the purposes of adjusting incident light energy distribution, enabling light mixing to be more uniform and achieving the uniform lightening effect without adding multiple layers of patterns are achieved, the whole optical system is high in efficiency, power consumption of the system is reduced, and the service life of the system is prolonged. And moreover, the first total reflection surface and the second total reflection surface are connected through the connecting surface, so that the light is more uniformly distributed in the total reflection process.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamps, in particular to a dimming structure and a vehicle lamp. Background Art

[0002] In the automotive lighting sector, traditional headlight design faces numerous challenges, particularly in terms of light uniformity and efficiency. For a long time, due to design and spatial constraints, headlight designs have mostly relied on direct or reflective lighting solutions. The basic operating principle of these solutions is that light emitted from an LED (light-emitting diode) light source is guided by a series of optical devices (such as thick-walled components, reflectors, or light guides) until it is evenly emitted from the headlight's light-emitting surface, achieving optimal lighting effects.

[0003] Due to the scattering and absorption of light during propagation, the light utilization efficiency of traditional solutions is generally low. In complex-shaped headlights, traditional solutions find it difficult to achieve uniform distribution of light, resulting in uneven brightness after the headlights are turned on. Utility Model Content

[0004] The technical problem to be solved by the present invention is: in order to solve the technical problems of low system light efficiency and poor lighting uniformity in the prior art, the present invention provides a dimming structure and a car light, which can achieve uniform lighting effect and high light efficiency without adding multiple layers of patterns.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a dimming structure, which includes: a dimming unit, the dimming unit including a first total reflection surface, a connecting surface and a second total reflection surface, the first total reflection surface and the second total reflection surface are arranged in a stepped manner, and there is a spacing L between the first total reflection surface and the second total reflection surface, the lower end of the connecting surface is connected to the first total reflection surface, and the upper end of the connecting surface is connected to the second total reflection surface.

[0006] The specific technical effect is: the first total reflection surface and the second total reflection surface adopt a step difference design so that the two total reflection surfaces are not located on the same plane. The purpose is to adjust the energy distribution of the incident light. That is to say, part of the light hits the first total reflection surface, and after total reflection, it is evenly emitted from the lower part of the light-emitting surface; the other part of the light hits the second total reflection surface, and after total reflection, it is evenly emitted from the upper part of the light-emitting surface, so that the mixed light is more uniform, and a uniform lighting effect can be achieved without adding multiple layers of patterns. The entire optical system is highly efficient, reduces system power consumption, and saves costs. In addition, the first total reflection surface and the second total reflection surface are connected by a connecting surface, so that the light is more evenly distributed during the total reflection process.

[0007] Furthermore, there are multiple dimming units, and multiple dimming units are arranged in an array.

[0008] The specific technical effect is that the number and arrangement of the dimming units can be adjusted according to actual usage requirements, and are not limited to array settings, and the size of each dimming unit can also be different. That is, it is only necessary to ensure that the first total reflection surface and the second total reflection surface of each dimming unit are arranged in a stepped manner, and the size and shape of the first total reflection surface and the first total reflection surface or the size and shape of the second total reflection surface and the second total reflection surface can be different.

[0009] Furthermore, it also includes a connecting unit, through which two adjacent dimming units are connected, the upper end of the connecting unit is connected to the second total reflection surface in one of the dimming units, and the lower end of the connecting unit is connected to the first total reflection surface in the adjacent dimming unit.

[0010] The specific technical effect is: by setting a connecting unit to connect two adjacent dimming units, the light transmission path between adjacent dimming units can be optimized, ensuring that the light reflection between adjacent dimming units is smoother and continuous, reducing light loss and scattering, thereby improving light utilization and enhancing the overall reflection effect, making the light more evenly distributed during the total reflection process, thereby improving lighting uniformity.

[0011] Furthermore, the range of the distance L is 0.2 mm to 5 mm.

[0012] Furthermore, the first total reflection surface is a flat surface or a curved surface.

[0013] Furthermore, the second total reflection surface is a flat surface or a curved surface.

[0014] The specific technical effect is: the base surface form of the total reflection surface can be adjusted according to actual production factors and actual use requirements, such as flat surface or curved surface. When it is a flat surface, the light efficiency is high; when it is a curved surface, the uniformity will be better than that of a flat surface; of course, the base surface form of the total reflection surface can also be adjusted according to the limitations of factors such as actual use space and shape.

[0015] Furthermore, the first total reflection surface and the second total reflection surface are both plated with aluminum.

[0016] The specific technical effects are: effective total reflection of light, reduction of light loss and improvement of reflectivity.

[0017] Furthermore, both the first total reflection surface and the second total reflection surface are provided with light distribution patterns.

[0018] The specific technical effect is: the light distribution pattern can further ensure that the light is evenly distributed after total reflection, thereby improving the efficiency of light energy utilization.

[0019] A vehicle lamp, comprising a light source, a concentrator, a thick-walled member, and a dimming structure as described above, wherein the light-emitting end of the light source faces the concentrator, the concentrator is arranged on one end of the thick-walled member, the dimming structure is arranged obliquely on the one end of the thick-walled member and faces the concentrator, and the other end of the thick-walled member is provided with a light-emitting surface.

[0020] Part of the light emitted by the light source is totally reflected by the first total reflection surface and then emitted from the light emitting surface, while the other part of the light is totally reflected by the second total reflection surface and then emitted from the light emitting surface.

[0021] The specific technical effect is: the angular relationship between the dimming structure and the incident light can be adjusted according to actual production factors and actual usage requirements. That is to say, the dimming structure is tilted on one end of the thick-walled part. By adjusting the tilt angle of the dimming structure, the light energy is evenly distributed and can be applied to different systems and adapted to different modeling angles.

[0022] Furthermore, it also includes two fixing brackets, which are connected to both sides of the thick-walled part.

[0023] The specific technical effect is: the thick-walled parts are installed and fixed by the fixing bracket.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] The first total reflection surface and the second total reflection surface are designed with a step difference so that the two total reflection surfaces are not located on the same plane. The purpose is to adjust the energy distribution of the incident light to make the mixed light more uniform. A uniform lighting effect can be achieved without adding multiple layers of patterns. The entire optical system is highly efficient, reduces system power consumption, and saves costs. The first total reflection surface and the second total reflection surface are connected by a connecting surface, so that the light is more evenly distributed during the total reflection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 This is a schematic structural diagram of a dimming structure of the utility model;

[0028] Figure 2 for Figure 1 A magnified schematic diagram of the local structure at center A;

[0029] Figure 3 for Figure 1 The main view;

[0030] Figure 4 This is a structural diagram of the dimming unit of the present utility model;

[0031] Figure 5 This is a structural diagram of a vehicle lamp according to the present invention;

[0032] Figure 6 It is a left side view of Example 2;

[0033] Figure 7 It is a front view of Example 2;

[0034] Figure 8 This is the left view of Example 3.

[0035] In the figure: 1. dimming structure; 101. dimming unit; 102. first total reflection surface; 103. connecting surface; 104. second total reflection surface; 105. connecting unit;

[0036] 2. Light source; 3. Concentrator; 4. Thick-walled parts; 5. Fixed bracket; 6. Light-emitting surface. DETAILED DESCRIPTION

[0037] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0039] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0040] like Figures 1 to 4 As shown, it is embodiment 1 of the present invention, a dimming structure 1 of this embodiment, which includes: multiple dimming units 101, multiple dimming units 101 are arranged in an array in sequence along the left and right directions, each dimming unit 101 includes a first total reflection surface 102, a connecting surface 103 and a second total reflection surface 104, the first total reflection surface 102 and the second total reflection surface 104 are arranged in a stepped manner, and there is a spacing L between the first total reflection surface 102 and the second total reflection surface 104, the lower end of the connecting surface 103 is connected to the first total reflection surface 102, and the upper end of the connecting surface 103 is connected to the second total reflection surface 104.

[0041] It should be noted here that: the first total reflection surface 102 and the second total reflection surface 104 adopt a step difference design so that the two total reflection surfaces are not located on the same plane. The purpose is to adjust the energy distribution of the incident light. That is to say, part of the light hits the first total reflection surface 102, and after total reflection, it is evenly emitted from the lower part of the light-emitting surface 6; the other part of the light hits the second total reflection surface 104, and after total reflection, it is evenly emitted from the upper part of the light-emitting surface 6, so that the mixed light is more uniform, and a uniform lighting effect can be achieved without adding multiple layers of patterns. The entire optical system is highly efficient, reduces system power consumption, and saves costs. In addition, the first total reflection surface 102 and the second total reflection surface 104 are connected by a connecting surface 103, so that the light is more evenly distributed during the total reflection process.

[0042] In this embodiment, a connecting unit 105 is further included, and two adjacent dimming units 101 are connected via the connecting unit 105. The upper end of the connecting unit 105 is connected to the second total reflection surface 104 in one dimming unit 101, and the lower end of the connecting unit 105 is connected to the first total reflection surface 102 in the adjacent dimming unit 101.

[0043] It should be noted here that: by setting a connecting unit 105 to connect two adjacent dimming units 101, the light transmission path between adjacent dimming units 101 can be optimized, ensuring that the light reflection between adjacent dimming units 101 is smoother and continuous, reducing light loss and scattering, thereby improving light utilization and enhancing the overall reflection effect, so that the light is more evenly distributed during the total reflection process, thereby improving lighting uniformity.

[0044] In this embodiment, the distance L is 1 mm.

[0045] In this embodiment, the width of the first total reflection surface 102 is 1 mm, and the width of the second total reflection surface 104 is 1 mm.

[0046] In this embodiment, the first total reflection surface 102 is a plane.

[0047] In this embodiment, the second total reflection surface 104 is a plane.

[0048] It should be noted here that the base surface form of the total reflection surface can be adjusted according to actual production factors and actual use requirements.

[0049] In this embodiment, both the first total reflection surface 102 and the second total reflection surface 104 are plated with aluminum.

[0050] What needs to be explained here is: effective total reflection of light, reducing light loss and improving reflectivity.

[0051] In this embodiment, light distribution patterns are disposed on both the first total reflection surface 102 and the second total reflection surface 104 .

[0052] It should be noted here that the light distribution pattern can further ensure that the light is evenly distributed after total reflection, thereby improving the efficiency of light energy utilization.

[0053] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation and protection scope of the present invention.

[0054] The present invention also has the following implementation methods based on the above:

[0055] Example 2:

[0056] like Figures 5 to 7 As shown, a vehicle lamp includes a light source 2, a concentrator 3, a thick-walled member 4, and a dimming structure 1 as in the above embodiment. The light-emitting end of the light source 2 faces the concentrator 3, the concentrator 3 is arranged on one end of the thick-walled member 4, the dimming structure 1 is arranged obliquely on one end of the thick-walled member 4 and faces the concentrator 3, and the other end of the thick-walled member 4 is provided with a light-emitting surface 6.

[0057] Among them, the working principle of this embodiment is: the light emitted by the light source 2 passes through the concentrator 3 and reaches the dimming structure 1, part of the light is totally reflected by the first total reflection surface 102 and then emitted from the lower part of the light-emitting surface 6, and the other part of the light is totally reflected by the second total reflection surface 104 and then emitted from the upper part of the light-emitting surface 6, and the position distribution of the emitted light is controlled by the dimming structure 1.

[0058] It should be noted here that the angular relationship between the dimming structure 1 and the incident light can be adjusted according to actual production factors and actual usage requirements. That is to say, the dimming structure 1 is tilted and set on one end of the thick-walled part 4. By adjusting the tilt angle of the dimming structure 1, the light energy distribution is uniform and can be applied to different systems and adapted to different modeling angles.

[0059] In this embodiment, two fixing brackets 5 are further included, and the two fixing brackets 5 are connected to both sides of the thick-walled member 4 .

[0060] It should be noted here that the thick-walled member 4 is installed and fixed by the fixing bracket 5 .

[0061] Example 3:

[0062] like Figure 8 As shown, the difference from Example 2 is that the light emitting surface 6 and the dimming structure 1 are arranged in an interlaced manner, that is, the light emitting surface 6 is not arranged directly opposite the dimming structure 1. At this time, a group of total reflection structures are arranged on the thick-walled part 4, and the total reflection part is located between the light emitting surface 6 and the dimming structure 1. The working principle of this embodiment is: the light emitted by the light source 2 passes through the concentrator 3 and reaches the dimming structure 1, a part of the light is totally reflected by the first total reflection surface 102 and hits the total reflection structure, and is emitted from the lower part of the light emitting surface 6 after multiple total reflections of the total reflection structure, and the other part of the light is totally reflected by the second total reflection surface 104 and hits the total reflection structure, and is emitted from the upper part of the light emitting surface 6 after multiple total reflections of the total reflection structure, and the position distribution of the emitted light is controlled by the dimming structure 1.

[0063] Preferably, the total reflection structure includes two oppositely arranged total reflection surfaces, which are tilted, with one total reflection surface facing the dimming structure 1 and the other total reflection surface facing the light emitting surface 6 .

[0064] In summary, compared with the prior art, the beneficial effects of the present invention are:

[0065] The first total reflection surface 102 and the second total reflection surface 104 are designed with a step difference so that the two reflection surfaces are not located on the same plane. The purpose is to adjust the energy distribution of the incident light. That is, part of the light hits the first total reflection surface 102, and after total reflection, it is evenly emitted from the lower part of the light-emitting surface 6; the other part of the light hits the second total reflection surface 104, and after total reflection, it is evenly emitted from the upper part of the light-emitting surface 6. This makes the mixed light more uniform, and a uniform lighting effect can be achieved without adding multiple layers of patterns. The entire optical system is highly efficient, reduces system power consumption, and saves costs. In addition, the first total reflection surface 102 and the second total reflection surface 104 are connected by a connecting surface 103, so that the light is more evenly distributed during the total reflection process.

[0066] The above description is based on the ideal embodiment of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical scope of this utility model. The technical scope of this utility model is not limited to the content of the specification and must be determined according to the scope of the claims.

Claims

1. A dimming structure, characterized in that: include: A dimming unit (101) comprises a first total reflection surface (102), a connecting surface (103) and a second total reflection surface (104); the first total reflection surface (102) and the second total reflection surface (104) are arranged in a stepped manner; a spacing L is provided between the first total reflection surface (102) and the second total reflection surface (104); the lower end of the connecting surface (103) is connected to the first total reflection surface (102), and the upper end of the connecting surface (103) is connected to the second total reflection surface (104).

2. The dimming structure according to claim 1, wherein: There are multiple dimming units (101), and the multiple dimming units (101) are arranged in an array.

3. The dimming structure according to claim 2, wherein: The invention also includes a connecting unit (105), wherein two adjacent dimming units (101) are connected via the connecting unit (105), wherein the upper end of the connecting unit (105) is connected to the second total reflection surface (104) in one of the dimming units (101), and the lower end of the connecting unit (105) is connected to the first total reflection surface (102) in the adjacent dimming unit (101).

4. The dimming structure according to claim 1, wherein: The range of the distance L is 0.2 mm to 5 mm.

5. The dimming structure according to claim 1, wherein: The first total reflection surface (102) is a flat surface or a curved surface.

6. The dimming structure according to claim 1, wherein: The second total reflection surface (104) is a flat surface or a curved surface.

7. The dimming structure according to claim 1, wherein: The first total reflection surface (102) and the second total reflection surface (104) are both plated with aluminum.

8. The dimming structure according to claim 1, wherein: Both the first total reflection surface (102) and the second total reflection surface (104) are provided with light distribution patterns.

9. A vehicle lamp, characterized in that: The invention comprises a light source (2), a concentrator (3), a thick-walled member (4), and a dimming structure according to any one of claims 1 to 8, wherein the light emitting end of the light source (2) faces the concentrator (3), the concentrator (3) is arranged on one end of the thick-walled member (4), the dimming structure (1) is arranged obliquely on one end of the thick-walled member (4) and faces the concentrator (3), and the other end of the thick-walled member (4) is provided with a light emitting surface (6). The light emitted by the light source (2) passes through the concentrator (3) and reaches the dimming structure (1); a portion of the light is totally reflected by the first total reflection surface (102) and then emitted from the light-emitting surface (6); and another portion of the light is totally reflected by the second total reflection surface (104) and then emitted from the light-emitting surface (6).

10. The vehicle lamp according to claim 9, characterized in that: It also includes two fixing brackets (5), and the two fixing brackets (5) are connected to both sides of the thick-walled part (4).

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