An Adaptive High Beam System and an Automobile

Abstract

An embodiment of the present application provides an adaptive high beam system and an automobile, belonging to the technical field of automobiles. It includes an inner lens group and an outer lens group arranged oppositely, and the outer lens group is arranged on one side of the light-emitting surface of the inner lens group; a light-emitting source is arranged on one side of the light-incident surface of the inner lens group, and the light emitted by the light-emitting source passes through the refraction of the inner lens group and the outer lens group in sequence, and then projects uniform light. By using the adaptive high beam system and the automobile provided by the present application, the double refraction of the inner lens group and the outer lens group can be utilized to reduce the aberration of a single lens, and further make the light pattern output from the outer lens group clearer.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of automobiles, and more specifically, to an adaptive high beam system and an automobile. Background Art

[0002] With the development of lamp light sources, automobile lamps have gradually developed towards a more intelligent direction. From the early halogen lamp high and low beams to the current LED adaptive low beam (AFS, Adaptive Frontlighting System) and LED adaptive high beam (ADB, Adaptive Driving Beam), etc. Among them, LED adaptive low beam and LED adaptive high beam can automatically switch the high and low beam lighting areas by identifying the driving road conditions through a camera, so as to avoid dazzling the drivers of other vehicles on the road and reduce the incidence of night-time traffic accidents.

[0003] In the prior art, silicone lenses are usually used in the adaptive low beam scheme. However, after designing a silicone lens to converge light, the aberration of the image projected through the external lens is relatively large and the imaging effect is poor. Summary of the Invention

[0004] The embodiments of the present application aim to provide an adaptive high beam system and an automobile, aiming to solve the problem of relatively large aberration of the projected image.

[0005] In a first aspect of the embodiments of the present application, an adaptive high beam system is provided, including an inner lens group and an outer lens group arranged oppositely, and the outer lens group is arranged on one side of the light-emitting surface of the inner lens group;

[0006] A light source is arranged on one side of the light-incident surface of the inner lens group, and the light emitted by the light source is refracted successively through the inner lens group and the outer lens group, and then uniform light is projected.

[0007] Optionally, the inner lens group has at least two inner lenses, and the outer lens group has outer lenses respectively aligned with each inner lens.

[0008] Optionally, at least one light source is arranged on one side of the light-incident surface of each inner lens;

[0009] Each light-incident surface of each inner lens has a reference point, and the reference point is the intersection between the principal optical axis of the inner lens and the light-incident surface of the inner lens;

[0010] The light sources located on the light-incident surface of each inner lens are evenly distributed around the reference point, and when the adjacent reference points coincide, the multiple light sources are arranged in a staggered manner.

[0011] Optionally, a deflection lens is provided between the light-emitting surfaces of adjacent inner lenses;

[0012] One end of the deflection lens is connected between the light-emitting surfaces of adjacent inner lenses, and the other end of the deflection lens faces the outer lens group;

[0013] The deflection lens is used to deflect the stray light output from the light-emitting surface of the inner lens group to eliminate the stray light.

[0014] Optionally, the deflection lens is triangular;

[0015] The bottom surface of the deflection lens is connected between the light-emitting surfaces of adjacent inner lenses, and the top end of the deflection lens faces the light-incident surface of the outer lens group.

[0016] Optionally, there is a gap between the light-emitting surfaces of adjacent outer lenses;

[0017] The width of the top end of the deflection lens is smaller than the gap between the light-emitting surfaces of adjacent outer lenses.

[0018] Optionally, a positioning groove is provided on the light-incident surface of the outer lens group;

[0019] The top end of the deflection lens is adapted to the positioning groove.

[0020] Optionally, a plurality of microstructures are provided on the light-incident surface of the outer lens group.

[0021] In the second aspect of the embodiments of the present application, an automobile is provided, including an adaptive high beam system as provided in the first aspect of the embodiments of the present application.

[0022] Beneficial effects:

[0023] The present application provides an adaptive high beam system. Through the relatively arranged inner lens group and outer lens group, the light emitted by the light source can be refracted once by the inner lens group first, and then the light output by the inner lens group can be refracted twice by the outer lens group. Finally, for a single lens group, for example, for the inner lens group or for the outer lens group, the light deflection angle on the single lens group is small, thereby reducing aberration. Due to the reduction of aberration, the projected image is relatively clear and the image distortion is small.

[0024] Moreover, based on the settings of the inner lens group and the outer lens group in the present application, the light emitted by the light source can be mixed by multiple inner lenses in the inner lens group, and then after being transmitted by multiple outer lenses in the outer lens group, the projected light is made more uniform. Description of the Drawings

[0025] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 is a schematic diagram of the light transmission of the adaptive high beam system proposed in an embodiment of the present application;

[0027] Figure 2 is the light pattern diagram of three light sources located on the Figure 5 left side in an embodiment of the present application;

[0028] Figure 3 is the light pattern diagram of three light sources located on the Figure 5 right side in an embodiment of the present application;

[0029] Figure 4 is the light pattern diagram of the mixture of three light sources located on the Figure 5 left side and three light sources located on the Figure 5 right side in an embodiment of the present application;

[0030] Figure 5 is the structural schematic diagram of the adaptive high beam system proposed in an embodiment of the present application.

[0031] Explanation of reference numerals: 1, inner lens group; 2, outer lens group; 3, light source; 4, microstructure; 5, deflection lens. Specific embodiments

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0033] In the related art, silica gel lenses are usually used in the adaptive low beam scheme. However, after designing the silica gel lens to converge the light, the aberration of the image formed by the object projected through the external lens is relatively large, resulting in blurred or distorted imaging, so the imaging effect is poor. Among them, aberration refers to the difference between the object and the image obtained after transmission through the optical system in an optical system.

[0034] After research by the applicant, it is found that due to the material and shape of the silicone lens itself, it is impossible to reduce the aberration of the projected image. Therefore, after the light emitted by the light source passes through the projection of the external lens, for a single external lens, the deflection angle between the incident light entering the external lens and the light output from the external lens is relatively large, resulting in a relatively large aberration of the projected image, and further causing the projected image to be relatively blurred or distorted.

[0035] In view of this, an embodiment of the present application provides an adaptive high beam system and an automobile. Referring to Figure 1 the structural schematic diagram shown, it includes an inner lens group 1 and an outer lens group 2 arranged oppositely, and the outer lens group 2 is arranged on one side of the light-emitting surface of the inner lens group 1; a light source 3 is arranged on one side of the light-incident surface of the inner lens group 1, and the light emitted by the light source 3 passes through the refraction of the inner lens group 1 and the outer lens group 2 in sequence, and projects uniform light.

[0036] By arranging the inner lens group 1 and the outer lens group 2 oppositely, the light emitted by the light source 3 can be refracted once by the inner lens group 1 first, and then refracted twice by the outer lens group 2 for the light output from the inner lens group 1. Finally, compared with the silicone lens solution in the prior art, the deflection angle between the incident light entering the inner lens group 1 and the light output from the inner lens group 1, and the deflection angle between the incident light entering the outer lens group 2 and the light output from the outer lens group 1 both become smaller. That is, in the prior art, after the deflection angle generated by the silicone lens solution is distributed between the inner lens group and the outer lens group in this application, the deflection angle is reduced compared with a single external lens, so that the aberration is reduced compared with the silicone lens solution, making the projected image clearer and the image distortion smaller.

[0037] Moreover, based on the arrangement of the inner lens group 1 and the outer lens group 2 in this application, the light emitted by the light source 3 can be mixed by multiple inner lenses in the inner lens group 1, and then transmitted by multiple outer lenses in the outer lens group 2, making the projected light more uniform.

[0038] Embodiment 1

[0039] An adaptive high beam system includes an inner lens group 1 and an outer lens group 2 arranged oppositely, and the outer lens group 2 is arranged on one side of the light-emitting surface of the inner lens group 1; a light source 3 is arranged on one side of the light-incident surface of the inner lens group 1, and the light emitted by the light source 3 passes through the refraction of the inner lens group 1 and the outer lens group 2 in sequence, and projects uniform light.

[0040] In this embodiment, through the relatively arranged inner lens group 1 and outer lens group 2, the light emitted by the light source 3 can be refracted once by the inner lens group 1 first, and then refracted twice by the outer lens group 2 for the light output by the inner lens group 1. Finally, for a single lens group, for example, for the inner lens group 1 or for the outer lens group 2, the deflection angle between the light entering the single lens group and the light output from the single lens group on the single lens group is small, thereby reducing aberration, making the projected image clearer, and the image distortion smaller. Moreover, based on the arrangement of the inner lens group 1 and the outer lens group 2 in this application, the light emitted by the light source 3 can be mixed among the multiple inner lenses in the inner lens group 1, and after being transmitted by the multiple outer lenses in the outer lens group 2, the projected light is made more uniform.

[0041] Based on the above adaptive high beam system, the present application provides some examples of specific implementable embodiments. On the premise of not conflicting with each other, the various examples can be arbitrarily combined to form a new adaptive high beam system. It should be understood that for any new adaptive high beam system formed by combining any examples, it should fall within the protection scope of the present application.

[0042] In a feasible embodiment, the inner lens group 1 has at least two inner lenses, and the outer lens group 2 has outer lenses respectively aligned with each of the inner lenses. On one side of the light incident surface of each inner lens, at least one light source 3 is provided; on the light incident surface of each inner lens, there are respectively reference points, and the reference point is the intersection point between the principal optical axis of the inner lens and the light incident surface of the inner lens; the light sources 3 located on the light incident surface of each inner lens are evenly distributed around the reference point, and when adjacent reference points coincide, the multiple light sources 3 are arranged in a staggered manner.

[0043] In this embodiment, referring to Figure 5 as shown, a plurality of light sources 3 are provided on the light incident surface of each inner lens, and the arrangement positions of the light sources 3 on the light incident surface of each inner lens are different.

[0044] In order to elaborate on the differences in the arrangement positions of the light sources 3 on the light incident surface of each inner lens, referring to Figure 5 , taking three light sources 3 and setting two reference points as an example, the reference points can be virtual reference points. For example, the positions of both virtual reference points are (0, 0). The positions of the light sources 3 on the left inner lens in Figure 5 are (-1, 0), (1, 0), (3, 0) in sequence, and the positions of the light sources 3 on the right inner lens in Figure 5 are (0, 0), (2, 0), (4, 0) in sequence. It can be seen that when the two virtual reference points coincide, the light sources 3 on the left inner lens in Figure 5 and the light sources 3 on theFigure 5 The positions of the light sources 3 on the inner lens on the right side are successively (-1, 0), (0, 0), (1, 0), (2, 0), (3, 0), (4, 0), and these six light sources 3 are arranged in a staggered manner.

[0045] Correspondingly, referring to Figure 2 as shown, the light output by the light source 3 on the inner lens on the left side in Figure 1 will generate a light pattern as shown in Figure 2 after passing through the projection of the outer lens; referring to Figure 3 as shown, the light output by the light source 3 on the inner lens on the right side in Figure 1 will generate a light pattern as shown in Figure 3 after passing through the projection of the outer lens; the light patterns of the light sources 3 on two adjacent inner lenses are combined or mixed to form Figure 4 the light pattern shown. On the premise that the number of the light sources 3 is large enough, a uniform light band can be formed, making the output light more uniform.

[0046] Of course, in this application, the number of the light sources 3 is not limited to 3. The arrangement method of this application is set in a staggered arrangement form, and the staggered arrangement method can include:

[0047] 1. The same as the above example, the brightnesses of each light source 3 are the same. When two virtual reference points coincide, the edge positions of adjacent light sources 3 overlap each other.

[0048] 2. The brightnesses of each light source 3 are all in a gradient form. For example, the brightness in the middle of the light source 3 is set to 1, and the brightness on both sides of the light source 3 is set to 0.5. When two virtual reference points coincide, the 0.5 brightness at the left and right ends of adjacent light sources 3 can be overlapped, making its brightness 1, which is the same as the brightness 1 in the middle of the light source 3, and a uniform light band can also be formed, making the output light more uniform.

[0049] In the above process, the adjacent light sources 3 designed in the form of staggered arrangement can output light with uniform brightness after being transmitted by the inner lens group 1 and the outer lens group 2, making the lighting effect of the adaptive high beam system better.

[0050] Among them, on the basis of outputting light with uniform brightness in this application, referring to Figure 5 as shown, a plurality of microstructures 4 are further arranged on the light incident surface of the outer lens group 2. The microstructures 4 can be grooves and / or bumps arranged on the light incident surface of the outer lens group 2, as long as they can refract the light input into the outer lens group 2.

[0051] By setting the microstructure 4, the light output from the inner lens group 1 can be refracted, making the light entering the outer lens group 2 more uniform, and thus the brightness of the light output from the outer lens group 2 more uniform.

[0052] For example, if the light entering the outer lens group 2 is parallel light, after being refracted by the microstructure 4, it will converge inside the outer lens group 2 and then diverge through the outer lens group 2. As a result, the light rays diverging from the outer lens group 2 will mix with each other, making the brightness of the output light more uniform.

[0053] In a feasible implementation, a deflecting lens 5 is provided between the light-emitting surfaces of adjacent inner lenses; one end of the deflecting lens 5 is connected between the light-emitting surfaces of adjacent inner lenses, and the other end of the deflecting lens 5 faces the outer lens group 2; the deflecting lens 5 is used to deflect the stray light output from the light-emitting surface of the inner lens group 1 to eliminate the stray light.

[0054] In this embodiment, referring to Figure 1 As shown, light ray 1 is stray light, and the intersection point between the reverse extension line of the light ray output after being refracted by the deflecting lens 5 and the light-incident surface of the inner lens is a virtual focus, which can be referred to Figure 5 It can be seen that the virtual focus of its imaging is located at point 1, and the virtual focus at point 1 is farther from the central position of the light-incident surface of the inner lens. Therefore, the influence of this light ray on the outer lens is smaller, thus eliminating the stray light to a certain extent.

[0055] By setting the deflecting lens 5, the stray light output from the inner lens can be refracted, preventing the stray light output from the inner lens from interfering with each other and generating stray light entering the outer lens, thereby making the lighting effect of the high beam system better.

[0056] Among them, in order to prevent the deflecting lens 5 from affecting the transmission of the light output from the inner lens to the outer lens, the deflecting lens 5 can be set as a triangle. In this way, when the light output from the inner lens gradually diverges to both sides, it will be transmitted to the outer lens along the outer wall of the deflecting lens 5, and the deflecting lens 5 will not block the light output from the inner lens.

[0057] In addition, there is a gap between the light-emitting surfaces of adjacent outer lenses. In order to prevent the deflecting lens 5 from affecting the transmission of the light output from the inner lens to the outer lens, the width of the top end of the deflecting lens 5 can be made smaller than the gap between the light-emitting surfaces of adjacent outer lenses.

[0058] By setting the width of the top end of the deflecting lens 5 to be smaller than the gap between the light-emitting surfaces of adjacent outer lenses, it can also prevent blocking the light transmitted from the inner lens to the outer lens, so that more good light can be transmitted into the outer lens.

[0059] Moreover, in order to position the inner lens and the outer lens, a positioning groove may be provided on the light incident surface of the outer lens. The top end of the deflection lens 5 can be inserted into the positioning groove (not shown in the figure) and adapted to the positioning groove, so as to position the inner lens and the outer lens.

[0060] By providing the positioning groove, the positioning of the inner lens and the outer lens can be achieved, which is convenient for the staff to fix the two.

[0061] Certainly, the top end of the deflection lens 5 can also be directly in contact with the light incident surface of the outer lens. During positioning, the positioning is directly performed at both ends of the edges of the inner lens group 1 and the outer lens group 2.

[0062] In a feasible implementation manner, the inner lens group 1 is a plastic lens.

[0063] In this implementation manner, the inner lens can be made of PC material or PMMA material.

[0064] When a silicone lens is used, the material of the silicone lens has a large thermal deformation. When heated and expanded, the "comb-shaped light guide bar structure" of the silicone lens will make it difficult for the silicone lens to be aligned with the light source 3. Therefore, a positioning structure is required to fix the silicone lens to avoid deformation of the silicone lens. However, when using the positioning structure to fix the silicone lens, the position and deformation problems between the two need to be considered, etc., to fix the silicone lens, and the positioning tolerance requirements between the two are relatively high, resulting in a difficult process of fixing the silicone lens.

[0065] By using the setting that the inner lens in this application is a plastic lens, it will not produce a large deformation when heated, and it also makes it impossible for the situation that the silicone lens is difficult to be aligned with the light source 3 to occur after the inner lens is fixed, thus reducing the installation problems and deformation problems brought by using the silicone lens.

[0066] Embodiment 2

[0067] Based on the same inventive concept, Embodiment 2 of this application aims to provide a vehicle, including an adaptive high beam system as provided in Embodiment 1 of this application.

[0068] It should be noted that the embodiments in this specification are all described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other.

[0069] It should also be noted that in this text, the orientation or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present invention. In addition, relative terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations, nor can they be construed as indicating or implying relative importance. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or terminal device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or terminal device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method, article or terminal device comprising the element.

[0070] The technical solutions provided in this application have been introduced in detail above. Specific examples are used in this text to elaborate on the principles and implementation manners of this application. The description of the above embodiments is only used to help understand this application, and the content of this specification should not be construed as a limitation on this application. At the same time, for those of ordinary skill in the art, based on this application, there will be various forms of changes in the specific implementation manners and application scopes. It is not necessary and impossible to enumerate all the implementation manners here, and the obvious changes or variations derived therefrom are still within the protection scope of this application.

Claims

1. An adaptive high beam system, characterized in that: It comprises an inner lens group (1) and an outer lens group (2) which are arranged opposite to each other, wherein the outer lens group (2) is arranged on one side of the light-emitting surface of the inner lens group (1); A light source (3) is provided on one side of the light incident surface of the inner lens group (1), and light emitted by the light source (3) is refracted by the inner lens group (1) and the outer lens group (2) in sequence to project uniform light; the inner lens group (1) has at least two inner lenses, and the outer lens group (2) has outer lenses aligned with each of the inner lenses; A deflecting lens (5) is provided between the light-emitting surfaces of adjacent inner lenses; At least one light source (3) is provided on one side of the light incident surface of each inner lens; Each of the inner lenses has a reference point on its light incident surface, where the reference point is the intersection of the principal optical axis of the inner lens and the light incident surface of the inner lens; The light sources (3) located on the light incident surface of each inner lens are evenly distributed around the reference point, and when adjacent reference points coincide, a plurality of the light sources (3) are arranged in a staggered manner; One end of the deflecting lens (5) is connected to the light-emitting surfaces of adjacent inner lenses, and the other end of the deflecting lens (5) faces the outer lens group (2); The deflecting lens (5) is used to deflect stray light output from the light-emitting surface of the inner lens group (1) to eliminate the stray light; The deflecting lens (5) is triangular in shape; The bottom surface of the deflecting lens (5) is connected to the light exit surfaces of adjacent inner lenses, and the top end of the deflecting lens (5) faces the light entrance surface of the outer lens group (2); there is a gap between the light exit surfaces of adjacent outer lenses; The width of the top end of the deflecting lens (5) is smaller than the gap between the light-emitting surfaces of adjacent outer lenses.

2. The adaptive high beam system according to claim 1, characterized in that: A positioning groove is provided on the light incident surface of the outer lens group (2); The top end of the deflecting lens (5) is adapted to the positioning groove.

3. The adaptive high beam system according to claim 1, characterized in that: A plurality of microstructures (4) are provided on the light incident surface of the outer lens group (2).

4. The adaptive high beam system according to claim 1, characterized in that: The inner lens group (1) is a plastic lens.

5. A car, characterized in that: Comprising the adaptive high beam system according to any one of claims 1 to 4.

Images