Self-adaptive high beam system

Abstract

The utility model belongs to the technical field of automobile lighting, and relates to a self-adaptive high beam system which comprises a light source, a silica gel light guide part and an imaging system, and the silica gel light guide part and the imaging system are arranged on one side of the light source and sequentially arranged from near to far in the light emitting direction of the light source. The second lens is located between the first lens and the silica gel light guide part, one or two of patterns or dermatoglyph is / are arranged on the light emitting faces, away from the light source, of the first lens, the second lens and the silica gel light guide part, the focal plane of the imaging system is a plane or a curved surface, and a plurality of light guide columns are arranged on the side, close to the light source, of the silica gel light guide part. And the root part of one side, far away from the light source, of the silica gel light guide part is positioned on the focal plane of the imaging system. According to the utility model, the central brightness can be increased, the edge pixel luminous efficiency is improved, the dark area boundary definition is increased, and the advantages of low power, good uniformity, low cost and the like are realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile lighting, and particularly relates to an adaptive high beam system. Background Art

[0002] Adaptive high beams were developed to address the glare caused by high beams to other drivers when meeting or following other vehicles. After the vehicle's sensor system identifies the speed and real-time position of the vehicle ahead, adaptive high beams dim the area where the vehicle is located to minimize glare. Meanwhile, the high beams remain illuminated in areas without vehicles to maintain visibility, significantly improving nighttime traffic safety. Due to cost constraints, adaptive high beams currently primarily utilize low- to medium-pixel resolution. There are two main technical solutions for this: a silicone light guide + single-lens solution; and an ultra-narrow-pitch matrix LED + multi-lens imaging solution.

[0003] However, both solutions currently have the following disadvantages:

[0004] 1. The center brightness is lower, and the edge pixels are less efficient than the center pixels, requiring more power to achieve the same brightness;

[0005] 2. The boundary of the dark area is not clear enough, and more LEDs need to be turned off to achieve the dark area, which leads to a decrease in the brightness of the bright area;

[0006] 3. Poor uniformity;

[0007] 4. The LED spacing is too small, resulting in poor heat dissipation. Utility Model Content

[0008] The purpose of the utility model is to solve the defects and shortcomings in the prior art and to design an adaptive high beam system with high brightness, low power, good effect and low cost.

[0009] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an adaptive high beam system, including a light source, and a silicone light guide and an imaging system arranged on one side of the light source and arranged in sequence from near to far along the light emitting direction of the light source. The silicone light guide has multiple light guide columns on the side close to the light source, and the root of the silicone light guide on the side away from the light source is located on the focal plane of the imaging system.

[0010] Preferably, the focal plane of the imaging system is a plane or a curved surface.

[0011] Preferably, the imaging system includes a first lens and a second lens, and the second lens is located between the first lens and the silicone light guide.

[0012] Preferably, the first lens, the second lens and the light-emitting surface of the silicone light guide away from the light source are all provided with one or both of patterns or leather grains.

[0013] Preferably, each surface or part of the surfaces of the first lens and the second lens are coated with an anti-reflection film.

[0014] Preferably, the light source includes a plurality of LEDs arranged in a matrix, the plurality of light guide columns are provided corresponding to the plurality of LEDs, and the spacing between the light guide columns and the LEDs is 0.1-1 mm.

[0015] Preferably, the angle between the light guide column and the light emitting direction of the light source is 0-25°.

[0016] Preferably, the light guide column includes a first surface, a third surface, and a second surface for connecting the first surface and the third surface, the first surface is located on the side of the light guide column close to the light source, and the third surface is located on the side of the light guide column away from the light source, that is, the connecting end face between the light guide column and the light guide member.

[0017] Preferably, the width of the first surface is 0.5-1.5 mm, the width of the third surface is 0.8-3 mm, and the ratio of the width of the third surface to the length of the second surface is 1:3-1:20.

[0018] After adopting the above technical solution, the adaptive high beam system provided by the present invention has the following beneficial effects:

[0019] (1) The utility model can increase the central brightness, making the road surface illumination distance longer;

[0020] (2) The utility model can improve the light effect of edge pixels and reduce power;

[0021] (3) The utility model can increase the clarity of the dark area boundary and achieve better anti-glare effect;

[0022] (4) The utility model can illuminate objects and road surfaces with better uniformity, comparable to 10,000-level pixels;

[0023] (5) The present invention can flexibly arrange LEDs and solve the heat dissipation problem of small-sized lens modules by increasing the distance between LEDs.

[0024] (6) The present invention reduces power and thus achieves better results while lowering costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of a form of an adaptive high beam system of the utility model;

[0026] Figure 2 This is a schematic diagram of another form of an adaptive high beam system of the present invention;

[0027] Figure 3This is a detailed view of the silicone light guide in the present invention;

[0028] Figure 4 This is a light path diagram of the high beam system of the utility model;

[0029] Figure 5 This is a light pattern diagram of the high beam system of the utility model.

[0030] Among them: a first lens 1, a second lens 2, a silicone light guide 3, a first surface 3-1, a second surface 3-2, a third surface 3-3, a light source 4, and an LED 5. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments described are merely a portion of the embodiments of the present invention, and not all of them. The following description of at least one exemplary embodiment is merely illustrative and in no way limits the present invention, its application, or use. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0033] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0034] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0035] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0036] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0037] The utility model provides an adaptive high beam system, such as Figure 1-5As shown, it includes a light source 4, and a silicone light guide 3 and an imaging system arranged on one side of the light source 4 and arranged in sequence from near to far along the light emission direction of the light source 4. The silicone light guide 3 has a plurality of light guide columns on the side close to the light source 4, and the root of the silicone light guide 3 on the side away from the light source 4 is located on the focal plane of the imaging system. Specifically, the focal plane of the imaging system is a plane or a curved surface. The imaging system includes a first lens 1 and a second lens 2, and the second lens 2 is located between the first lens 1 and the silicone light guide 3. The first lens 1, the second lens 2 and the light emitting surface of the silicone light guide 3 away from the light source are all provided with one or both of patterns or leather grains. Each surface or part of the surface of the first lens 1 and the second lens 2 is coated with an anti-reflection film. The light source 4 includes a plurality of LEDs 5 arranged in a matrix, and the positions of the plurality of LEDs 5 can be flexibly adjusted. The plurality of light guide columns are arranged corresponding to the plurality of LEDs 5, and the spacing between the light guide columns and the LEDs 5 is 0.1-1 mm. The angle between the light guide columns and the light emitting direction of the light source 4 is 0-25°. Its implementation form is as follows Figure 1-2 As shown, further, the light guide column includes a first surface 3-1, a third surface 3-3, and a second surface 3-2 for connecting the first surface 3-1 and the third surface 3-3, the first surface 3-1 is located on the side of the light guide column close to the light source 4, and the third surface 3-3 is located on the side of the light guide column away from the light source 4, that is, the connecting end face of the light guide column and the light guide member 3, the width of the first surface 3-1 is 0.5-1.5mm, the width of the third surface 3-3 is 0.8-3mm, and the ratio of the width of the third surface 3-3 to the length of the second surface 3-2 is 1:3-1:20.

[0038] When the adaptive high beam system of the utility model is used, the light emitted by LED5 is converged by the silicone light guide 3 and then imaged by the imaging system to form a regular rectangular light spot. The LED5 arranged in the matrix work together to form a regular rectangular light spot. Figure 5 Full adaptive high-beam pattern shown.

[0039] To sum up, the adaptive high beam system provided by the present invention can increase the central brightness, improve the light effect of edge pixels, and increase the clarity of dark area boundaries. It has the advantages of low power, good uniformity, and low cost. It has great market value and deserves wide promotion and application.

[0040] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adaptive high beam system, characterized by: The invention comprises a light source (4), a silicone light guide (3) and an imaging system, which are arranged on one side of the light source (4) and arranged in sequence from near to far along the light emission direction of the light source (4); the silicone light guide (3) has a plurality of light guide columns on the side close to the light source (4); and the root of the silicone light guide (3) on the side away from the light source (4) is located on the focal plane of the imaging system.

2. The adaptive high beam system according to claim 1, characterized in that: The focal plane of the imaging system is a plane or a curved surface.

3. The adaptive high beam system according to claim 1, characterized in that: The imaging system comprises a first lens (1) and a second lens (2), wherein the second lens (2) is located between the first lens (1) and a silicone light guide (3).

4. The adaptive high beam system according to claim 3, characterized in that: The light-emitting surfaces of the first lens (1), the second lens (2) and the silicone light guide (3) away from the light source are all provided with one or both of patterns or leather grains.

5. The adaptive high beam system according to claim 3, characterized in that: Each surface or part of the surface of the first lens (1) and the second lens (2) is coated with an anti-reflection film.

6. The adaptive high beam system according to claim 1, characterized in that: The light source (4) comprises a plurality of LEDs (5) arranged in a matrix, the plurality of light guide columns are arranged corresponding to the plurality of LEDs (5), and the spacing between the light guide columns and the LEDs (5) is 0.1-1 mm.

7. The adaptive high beam system according to claim 1, characterized in that: The angle between the light guide column and the light emitting direction of the light source (4) is 0-25°.

8. The adaptive high beam system according to claim 1, characterized in that: The light guide column comprises a first surface (3-1), a third surface (3-3), and a second surface (3-2) for connecting the first surface (3-1) and the third surface (3-3), wherein the first surface (3-1) is located on a side of the light guide column close to the light source (4), and the third surface (3-3) is located on a side of the light guide column far from the light source (4), i.e., a connection end surface between the light guide column and the light guide member (3).

9. The adaptive high beam system according to claim 8, characterized in that: The width of the first surface (3-1) is 0.5-1.5 mm, the width of the third surface (3-3) is 0.8-3 mm, and the ratio of the width of the third surface (3-3) to the length of the second surface (3-2) is 1:3-1:20.

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