A vehicle lamp and vehicle

Abstract

The utility model relates to vehicle lamp technical field discloses a vehicle lamp and vehicle, including the casing and setting optical subassembly in the casing inside, and the front surface of casing is equipped with the light collecting part, the inside surface of light collecting part is as the light collecting surface, the light collecting surface is the parabolic surface that protrudes to the inside, and the surface along parabolic surface forms the grid -like grain that arranges according to preset rule, this scheme only needs to carry out brief optimization on the basis of existing vehicle lamp cover structure, namely increases grid -like grain ( maize pattern) in light collecting surface and arranges according to preset rule, and the encryption processing, can satisfy the demand of weakening the particle feeling under the condition of low cost and not causing the greater influence to the existing vehicle lamp cover production process.

Description

Technical Field

[0001] This utility model relates to the field of vehicle lighting technology, specifically to a vehicle lighting system and a vehicle. Background Technology

[0002] Position lights, also known as parking lights or side marker lights, are lighting devices used by automobiles at night or in low-visibility environments to indicate the vehicle's presence and spatial outline. Their core function is to improve vehicle visibility and prevent misjudgment or collisions by other vehicles or pedestrians. Position lights are typically installed symmetrically on the front (white) and rear (red) of the vehicle, and are called front position lights and rear position lights, respectively. When turned on, they illuminate continuously at a low brightness without flashing, indicating the vehicle's length, width, and whether it is parked or in motion. Unlike headlights, position lights consume little power and have moderate brightness, allowing oncoming vehicles to identify the vehicle's boundaries in scenarios such as dusk, fog, and tunnels without causing glare.

[0003] In modern vehicles, position lights mostly use LED light sources, which have advantages such as fast response, long lifespan, and low energy consumption. They are often integrated with daytime running lights and turn signals to enhance the overall vehicle's visual appeal and intelligence. However, the light beam can appear grainy due to factors such as the spacing between LED chips, assembly tolerances of optical components, diffraction of secondary optical elements, light path deviation caused by thermal deformation, and fluctuations in drive current. Therefore, reducing the grainy appearance of LED headlights (eliminating spots, textures, or uneven brightness in the light) is a key technical challenge for improving driving safety and comfort.

[0004] There are three common techniques for reducing graininess: 1. Selecting materials for the lampshade and lens, such as nanoscale diffusion materials and different metal circuit boards, can eliminate light path deviation caused by thermal deformation. The disadvantage is that it requires higher cost.

[0005] 2. Using a combination of LED beads and light guides to achieve a uniform light spot is difficult to compress in the limited space of the car headlights.

[0006] 3. Use an intelligent compensation system to revise the circuit output signal. This method usually involves multi-sensor closed-loop control to monitor lens temperature gradient, road surface light spot and vehicle body vibration, etc., to dynamically adjust the optical path, or use optical shape optimization algorithm to revise the drive current to a positive value. The disadvantage is that it has high cost requirements. Utility Model Content

[0007] The present invention aims to provide a vehicle headlight and vehicle to solve the technical problems of high cost and difficulty in size reduction of existing methods for reducing the pixelation of LED headlights.

[0008] The basic solution provided by this utility model is as follows: a vehicle lamp, including a housing and an optical component disposed inside the housing, wherein a light-concentrating part is provided on the front surface of the housing; the inner side of the light-concentrating part is used as a light-concentrating surface; the light-concentrating surface is a parabolic surface protruding inward, and a grid pattern arranged according to a preset rule is formed along the surface of the parabolic surface.

[0009] This utility model also provides a vehicle equipped with one of the aforementioned vehicle lights.

[0010] The working principle and advantages of this utility model are as follows: Compared with existing methods that reduce graininess by updating materials, optimizing light sources, and improving control intelligence, this solution only requires simple optimization of the existing shell structure (further, when the headlight adopts a structure consisting of a headlight shell and a lampshade, the lampshade structure is simply optimized). This can meet the requirement of reducing graininess at low cost and without significantly affecting the existing headlight (further, lampshade) manufacturing process.

[0011] This solution adds a grid-like texture (corn pattern) to the light-gathering surface of the traditional headlight housing (further, the lampshade) structure, while employing a regular arrangement design and density enhancement. The resulting structure reduces the grainy appearance during actual use. In the lens and lampshade structure, the number of molds required is reduced, lowering costs. Simultaneously, with a slight loss of brightness, it solves the problem of noticeable graininess when the LED chip shines directly into the lampshade. Furthermore, using the maximum outline of the corn pattern on the inner side of the transparent lampshade as the boundary increases the illumination range and visibility, enhancing the product's marketability. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a vehicle lamp provided in an embodiment of the present utility model; Figure 2 for Figure 1 AA sectional view.

[0013] Figure 3 This is a schematic diagram of a parabolic surface provided in an embodiment of the present invention; Figure 4 This is a front view of a vehicle headlight cover provided in an embodiment of the present utility model; Figure 5 for Figure 4 BB section view; Figure 6 A rear view of a vehicle headlight cover provided in an embodiment of this utility model; Figure 7 for Figure 6 Partial schematic diagram at point A; The markings in the accompanying drawings include: lampshade 1, lamp housing 2, circuit board 3, and focusing surface 4. Detailed Implementation

[0014] The following detailed explanation illustrates the specific implementation methods: The basic implementation examples are as follows: Figure 1 , Figure 2 , Figure 3 As shown: A vehicle lamp includes a housing and an optical component disposed inside the housing. The front view of the housing is provided with a light-concentrating part; the inner side of the light-concentrating part is used as a light-concentrating surface; the light-concentrating surface is a parabolic surface protruding inward, and a grid pattern arranged according to a preset rule is formed along the surface of the parabolic surface.

[0015] To describe direction, Figure 2 The direction indicated by the arrow is the outer side, and the opposite direction is the inner side. In addition, the direction indicated by the arrow also indicates that the light is emitted from the inner LED and passes through the focusing surface before exiting the headlight.

[0016] Specifically: In this embodiment, the housing includes a lamp housing 2 and a lamp cover 1, adopting a closed structure commonly used in modern automotive lights, consisting of a lamp housing 2 (rear housing) and a lamp cover 1 (front cover). In other embodiments, the housing may be an integrated automotive light housing or an integral optical structure housing.

[0017] The optical components include a circuit board 3 and LED beads. After installing the lampshade 1, circuit board 3, and lamp housing 2, the LED beads are lit. The light emitted by the LED beads is directly refracted through the corn-pattern pattern on the transparent lampshade of the focusing surface (e.g., Figure 2 (In the direction indicated by the arrow) to reduce the graininess.

[0018] The focusing section is located on the front view of the lampshade. Lampshade 1 as shown. Figure 4 and Figure 5 As shown, the structure of the lamp cover 1 adopts the structure of a vehicle position light lamp cover, which can be a transparent lamp cover. It can be understood that the lamp cover of this solution has an integrated structure of ordinary lamp cover plus a focusing surface, that is, the lamp cover, focusing part and focusing surface are set as one piece.

[0019] like Figure 2 As shown, the parabolic surface is composed of Decision, among which The value determines the distance between the focal point of the LED and the parabolic surface. The higher the value, the larger the opening of the focusing surface. Once the number of LEDs is determined, it can be adjusted. Values ​​are used to achieve the desired light distribution brightness, such as Figure 3 As shown, F represents the focal point, P represents the LED position, and F2 corresponds to P2. The value is greater than the corresponding value of F1 to P1. The value is that the opening of the focusing surface shown by the parabolic surface P2 is larger than the opening of the focusing surface shown by the parabolic surface P1.

[0020] The grid pattern is similar to the cornmeal pattern. For example... Figure 6 and Figure 7 As shown, the grid can be selected as 1.5mm × 1.5mm square grids, covering the entire light-gathering surface. The curve formed by connecting the outer contour points of the grid pattern (i.e., the square outer contour points of the corn pattern) and the curvature of the light-gathering surface (parabolic surface) are within the allowable range to ensure that the curvatures of the two are approximately the same.

[0021] The grid-like pattern is composed of intersecting linear ridges, forming a honeycomb array with periodic distribution characteristics.

[0022] The central region of the parabolic surface is divided into several horizontally arranged units, with adjacent units separated by at least one grid width. These units are evenly distributed.

[0023] A mesh-like texture refinement process is applied. This process is applied to adjacent units in the central region of the parabolic surface and / or to the outer edge of the parabolic surface, with the mesh-like texture refinement applied vertically between adjacent units in the central region.

[0024] The grid-like texture encryption process involves dividing each grid at the encryption location into multiple subdivisions, such as two or four subdivisions. These subdivisions can be square, triangular, or other shapes.

[0025] like Figure 5 As shown, the light-collecting surface has a wavy structure when viewed from above.

[0026] The textured surface allows for adjustment of the light propagation direction, enabling precise light distribution. Enhancing the local beam density in denser areas improves illumination intensity and uniformity. By rationally distributing the texture density, the boundaries between light and dark areas in the light spot can be effectively broken down, reducing visual graininess and making the illumination softer and more continuous, thus improving optical quality and appearance.

[0027] This embodiment also provides a vehicle equipped with the aforementioned headlights.

[0028] This solution provides a vehicle headlight and vehicle that, through a simple optimization of the existing headlight housing (furthermore, lampshade) structure, adds a grid-like texture (corn pattern) to the light-concentrating surface and arranges and densifies it according to a preset pattern. Verification shows that this structural optimization meets the requirement of reducing the graininess, and at the same time, it can achieve mass production at low cost and without significantly affecting the existing headlight housing (furthermore, lampshade) production process.

[0029] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A vehicle lamp, comprising a housing and an optical component disposed inside the housing, characterized in that, The front surface of the housing is provided with a light-concentrating part; the inner side of the light-concentrating part is used as the light-concentrating surface; the light-concentrating surface is a parabolic surface protruding inward, and a grid pattern arranged according to a preset rule is formed along the surface of the parabolic surface.

2. A vehicle light according to claim 1, characterized in that, The housing includes a lamp housing and a lamp shade, with the focusing part located on the front view of the lamp shade.

3. A vehicle light according to claim 2, characterized in that, The lampshade, focusing part, and focusing surface are integrated into one unit.

4. A vehicle light according to claim 1, characterized in that, parabolic surface Decision, among which The value determines the distance between the focal point of the LED and the parabolic surface.

5. A vehicle light according to claim 1, characterized in that, The curve formed by connecting the outer contour points of the grid pattern and the curvature of the light-gathering surface are within the allowable range to ensure that the curvatures of the two are approximately the same.

6. A vehicle light according to claim 1, characterized in that, The grid-like pattern is composed of intersecting linear ridges, forming a honeycomb array with periodic distribution characteristics.

7. A vehicle light according to claim 1, characterized in that, The central region of the parabolic surface is divided into several horizontally arranged units; a mesh-like texture is applied to the adjacent units in the central region of the parabolic surface and / or the outer edge of the parabolic surface.

8. A vehicle light according to claim 7, characterized in that, Adjacent cells are divided into cells by at least one grid width.

9. A vehicle light according to claim 7, characterized in that, The grid-like texture encryption process involves dividing each grid at the encryption location into multiple subdivisions.

10. A vehicle, characterized in that, The vehicle is equipped with a light as described in any one of claims 1-9.

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