A light shape adjusting method of a lighting module, the lighting module, a headlamp, and a vehicle

Abstract

The application discloses a lighting module, a headlamp and a vehicle, wherein the light pattern of the lighting module comprises a pixelated light pattern (100) and a non-pixelated light pattern (200), the upper and lower boundary angle difference of the pixelated light pattern (100) ranges from 5 degrees to 8 degrees, and the light pattern adjustment method of the lighting module comprises adjusting the position of the pixelated light pattern (100), so that in the low beam lighting mode, the angle range of the lower boundary of the pixelated light pattern (100) is greater than or equal to -8 degrees and less than or equal to -4 degrees, and the angle range of the upper boundary is greater than or equal to 0 degrees and less than or equal to 3 degrees; and in the high beam lighting mode, the angle range of the lower boundary of the pixelated light pattern (100) is greater than or equal to -3 degrees and less than or equal to -1 degree, and the angle range of the upper boundary is greater than or equal to 4 degrees and less than or equal to 8 degrees. The light pattern adjustment method of the lighting module is simple in operation, good in lighting effect, and capable of reducing the manufacturing cost of the lighting module.

Description

Technical Field

[0001] This invention relates to automotive lighting, and more specifically, to a method for adjusting the light pattern of a lighting module. Furthermore, this invention also relates to a lighting module, a headlight, and a vehicle. Background Technology

[0002] In recent years, pixelated lighting technology has been proposed in the field of automotive lighting technology. Automotive lights include pixelated lighting units and non-pixelated lighting units. Pixelated lighting units project pixelated light patterns 100, while non-pixelated lighting units project non-pixelated light patterns 200, such as... Figure 1 As shown, the non-pixelated light pattern 200 is generally formed as a low-beam broadening light pattern, i.e., an auxiliary low-beam light pattern. The pixelated light pattern 100 can form lighting light patterns that conform to different lighting modes by turning the light source on and off, realizing adaptive high beam or anti-glare high beam functions, as well as functions such as low beam cutoff line and projecting pixelated symbols onto the road surface, such as... Figure 20 As shown, by extinguishing a portion of the light source, the pixelated light pattern 100 forms a main low beam light pattern with a low beam cutoff line, which is then superimposed on the non-pixelated light pattern 200 for low beam illumination. Taking an 8° difference between the upper and lower boundaries of the pixelated light pattern 100 as an example, one technical solution is that the upper boundary of the pixelated light pattern 100 meets the illumination requirements of adaptive high beam or anti-glare high beam, and the lower boundary meets the requirement of forming a low beam cutoff line, for example... Figure 1 As shown, when the upper boundary of the beam is at +5° and the lower boundary is at -3°, this technical solution, while able to meet the requirements of pixelated illumination for adaptive high beams or anti-glare high beams at a distance and the formation of a low beam cutoff line, also has limitations. Figure 2 As shown, because the pixelated light pattern 100 is positioned high and illuminates the road surface from a distance, the pixelated symbol display effect is poor. This is because the distance is too great, resulting in insufficient driver visibility, and the pixelated symbol exhibits significant distortion at a large distance, thus leading to a poor projection effect of the road surface pixelated symbol. Another technical solution is to have the upper boundary of the pixelated light pattern 100 meet the requirements for forming a low beam cutoff line, while the lower boundary meets the requirements for road surface symbol projection. For example, as shown... Figure 3 As shown, the upper boundary of the light shape is located at +2°, and the lower boundary is located at -6°. This technical solution, such as... Figure 4 As shown, although it can form a low beam cutoff line and achieve a good effect of road surface symbol projection, it cannot achieve the functions of adaptive high beam or anti-glare high beam pixelated lighting because the pixelated light pattern 100 is positioned too low and illuminates the road surface too close, failing to meet the requirements of high beam illumination range. Furthermore, if the upper and lower boundary angles of the pixelated light pattern 100 are simultaneously increased to meet both the requirements of adaptive high beam or anti-glare high beam functions and the requirement of good road surface symbol projection, the cost of the LED light source and the design difficulty and cost of the lens assembly would be significantly increased, and its space occupation would also be relatively large. Summary of the Invention

[0003] The first aspect of this invention aims to solve the problem of providing a method for adjusting the light pattern of an illumination module. This method is simple to operate, provides good illumination effect, and can reduce the manufacturing cost of the illumination module.

[0004] Furthermore, the second aspect of this invention aims to provide a lighting module that can achieve no dark areas after switching between high beam and low beam lighting, resulting in good lighting effect and low manufacturing cost.

[0005] Furthermore, the third aspect of the present invention aims to provide a headlight that can achieve no dark area after switching between high beam and low beam illumination, resulting in good light pattern illumination effect and low manufacturing cost.

[0006] Furthermore, the fourth aspect of the present invention aims to provide a vehicle whose headlights can achieve no dark areas after switching between high beam and low beam illumination, resulting in good light pattern illumination effect and low manufacturing cost.

[0007] To address the aforementioned technical problems, the first aspect of this invention provides a method for adjusting the light pattern of a lighting module. The lighting pattern of the lighting module includes pixelated light patterns and non-pixelated light patterns. The angle difference between the upper and lower boundaries of the pixelated light patterns ranges from 5° to 8°. The method for adjusting the light pattern of the lighting module includes adjusting the position of the pixelated light patterns such that, in low beam lighting mode, the angle range of the lower boundary of the pixelated light patterns is greater than or equal to -8° and less than or equal to -4°, and the angle range of the upper boundary is greater than or equal to 0° and less than or equal to 3°; in high beam lighting mode, the angle range of the lower boundary of the pixelated light patterns is greater than or equal to -3° and less than or equal to -1°, and the angle range of the upper boundary is greater than or equal to 4° and less than or equal to 8°.

[0008] In addition, a second aspect of the present invention provides an illumination module, including at least one pixelated illumination section and at least one non-pixelated illumination section. The pixelated illumination section includes a pixelated light source and a pixelated light-emitting lens. The non-pixelated illumination section includes, along the light-emitting direction, a non-pixelated light source, a non-pixelated primary optical element, and a non-pixelated light-emitting lens in sequence. The pixelated light-emitting lens and the non-pixelated light-emitting lens are integrally formed. The pixelated illumination section is capable of projecting to form the pixelated light pattern, and the non-pixelated illumination section is capable of projecting to form the non-pixelated light pattern. The non-pixelated primary optical element includes a first primary optical element and a second primary optical element. The first primary optical element and the second primary optical element are arranged in a vertical direction. The first primary optical element is adapted to form a near-light broadening light pattern, and the second primary optical element is adapted to form a light pattern that supplements the dark area. Alternatively, the non-pixelated primary optical element includes two first primary optical elements, which are disposed on both sides of the pixelated illumination section. The lower boundary of the light-emitting surface of one of the first primary optical elements is located below the lower boundary of the light-emitting surface of the other first primary optical element.

[0009] Preferably, the first primary optical element and the second primary optical element are integrally formed.

[0010] More preferably, the first primary optical element and the second primary optical element each include a primary optical element light-incident end, a primary optical element light channel, and a primary optical element light-out end, which are integrally formed from back to front. The molding material of the primary optical element light-incident end is different from the molding material of the primary optical element light channel and the primary optical element light-out end. The primary optical element light-incident end is provided in a one-to-one correspondence with the non-pixelated light source.

[0011] More preferably, the light-incident end of the primary optical element is a silicone molding, and the light-channel and the light-exit end of the primary optical element are PC moldings.

[0012] In another preferred embodiment, the interface between the light-incident end of the primary optical element and the light channel of the primary optical element corresponding to the light-incident end of the primary optical element is set as a convex curved surface.

[0013] More preferably, the light-emitting surface of the pixelated light-emitting lens is configured as an outwardly convex curved surface, and the light-emitting surface of the pixelated light-emitting lens and the light-emitting surface of the non-pixelated light-emitting lens are connected as a smooth curved surface with continuous curvature.

[0014] In another preferred embodiment, the pixelated illumination unit further includes an imaging lens group, which includes a first imaging lens and a second imaging lens arranged sequentially from back to front. The first imaging lens is configured as a biconvex lens with both the light-incident surface and the light-exit surface being convex surfaces. The second imaging lens is configured as a convex-concave lens with the light-incident surface being concave and the light-exit surface being convex. The pixelated light-exiting lens is configured as a biconvex lens with both the light-incident surface and the light-exit surface being convex.

[0015] Specifically, the pixelated light source consists of multiple LED light-emitting units that can be independently controlled to turn on and off.

[0016] Furthermore, a third aspect of the present invention provides a headlight, including a lighting module according to any one of the technical solutions of the second aspect.

[0017] Furthermore, a fourth aspect of the present invention provides a vehicle including the headlights described in the third aspect of the technical solution above.

[0018] Through the above technical solution, the light pattern adjustment method of the lighting module of the present invention controls the illumination angle of the pixelated light pattern of the lighting module, so that the angle difference between the upper and lower boundaries of the pixelated light pattern is within the range of 5°-8°. Simultaneously, by adjusting the position of the pixelated light pattern, in low beam lighting mode, the angle range of the lower boundary of the pixelated light pattern is greater than or equal to -8° and less than or equal to -4°, and the angle range of the upper boundary is greater than or equal to 0° and less than or equal to 3°; in high beam lighting mode, the angle range of the lower boundary of the pixelated light pattern is greater than or equal to -3° and less than or equal to -1°, and the angle range of the upper boundary is greater than or equal to 4° and less than or equal to 8°. In the light pattern adjustment method of the lighting module of the present invention, by controlling the angle difference and angle range of the upper and lower boundaries of the pixelated light pattern area, the projection functions of the high beam ADB, low beam cutoff line, and road sign are satisfied, and the manufacturing cost of the lighting module is lower while the projection effect is better. Meanwhile, the lighting module of the present invention sets up the pixelated lighting section and the non-pixelated lighting section in the same module. Through the combination of the first primary optical element and the second primary optical element, or multiple first primary optical elements, the light pattern that supplements the dark area can be formed during the up and down adjustment of the pixelated light pattern, thereby optimizing the light output effect. This results in better lighting effect for the pixelated light pattern with a narrow range of upper and lower boundary angle differences. The lighting module structure that forms the pixelated light pattern is simple and has a low production cost.

[0019] Other advantages of the present invention and the technical effects of preferred embodiments will be further described in the following detailed description. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the lighting area in the prior art where the upper boundary of the pixelated light pattern meets the requirements of adaptive high beam or anti-glare high beam, and the lower boundary meets the requirements of the low beam cutoff line.

[0021] Figure 2 yes Figure 1 A projection effect of vehicle headlights;

[0022] Figure 3 This is a schematic diagram showing the relative positions of pixelated and non-pixelated light patterns in the prior art when the upper boundary of the pixelated light pattern satisfies the near-beam cutoff line and the lower boundary satisfies the road symbol projection requirements.

[0023] Figure 4 yes Figure 3 A projection effect of vehicle headlights;

[0024] Figure 5 yes Figure 1 The diagram shows the relative positions of the pixelated and non-pixelated beam patterns after both beam patterns are downsized in the low beam illumination mode.

[0025] Figure 6 This is a schematic diagram of a specific embodiment of the lighting module of the present invention;

[0026] Figure 7 yes Figure 6 A top view of the lighting module shown;

[0027] Figure 8 yes Figure 7 AA cross-section view;

[0028] Figure 9 This is a schematic diagram of another specific embodiment of the lighting module of the present invention;

[0029] Figure 10 yes Figure 9 A top view of the lighting module shown;

[0030] Figure 11 yes Figure 10 CC cross-section;

[0031] Figure 12 yes Figure 10 BB cross-section;

[0032] Figure 13 yes Figure 10 The specific embodiment shown is a schematic diagram of the relative positions of the pixelated and non-pixelated light patterns when the light source corresponding to the first primary optical element 231 at the lower edge of the light-emitting surface is turned on and the light source corresponding to the first primary optical element 231 at the upper edge of the light-emitting surface is turned off.

[0033] Figure 14This is a schematic diagram of a specific embodiment of the non-pixelated primary optical element of the present invention;

[0034] Figure 15 yes Figure 14 A top view of the non-pixelated primary optical element shown;

[0035] Figure 16 yes Figure 15 DD cross-section;

[0036] Figure 17 yes Figure 14 A side view of the non-pixelated primary optical element shown;

[0037] Figure 18 yes Figure 17 EE cross-section;

[0038] Figure 19 This is a schematic diagram of a specific embodiment of the pixelated light-emitting lens and imaging lens group of the present invention;

[0039] Figure 20 This is a schematic diagram of the illumination area of ​​the pixelated and non-pixelated light patterns of the present invention in the low beam illumination mode;

[0040] Figure 21 This is a schematic diagram of one specific embodiment of the dimming mechanism of the present invention;

[0041] Figure 22 This is a second schematic diagram of a specific embodiment of the dimming mechanism of the present invention.

[0042] Explanation of reference numerals in the attached figures

[0043] 1 pixelated lighting section 11 pixelated light source

[0044] 12-pixel light-emitting lens; 13-pixel imaging lens group

[0045] 131 First imaging lens 132 Second imaging lens

[0046] 2 Non-pixelated lighting section 21 Non-pixelated light source

[0047] 22 Non-pixelated light-emitting lens 23 Non-pixelated primary optical element

[0048] 231 First primary optical element 232 Second primary optical element

[0049] 233 Primary optical element input end 234 Primary optical element optical channel

[0050] 235 primary optical element, 3 optical axes at the light output end

[0051] 4. Ball end screw assembly 41. Ball end screw

[0052] 42 ball head nut 5 dimming actuator

[0053] 6 radiators

[0054] 100-pixelated light pattern 200-pixelated light pattern

[0055] 300 Dark Zone Detailed Implementation

[0056] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of the present invention, and the scope of protection of the present invention is not limited to the specific embodiments described below.

[0057] In the description of this invention, it should be explained that some directional terms used in the following description to clearly illustrate the technical solutions of this invention, such as "front," "rear," "upper," and "lower," etc., take the pixelated illumination unit 1 as an example. The end where the pixelated light source 11 is located is the rear, and the end where the pixelated light-emitting lens 12 is located is the front. The directions represented by the upper and lower sides of the pixelated illumination unit 1 relative to the front-rear direction are the up-down directions. The terminology is based on the directions or positional relationships shown in the drawings and is only for the convenience of describing this invention and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0058] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0059] The first aspect of this invention provides a method for adjusting the light pattern of an illumination module. The light pattern of the illumination module includes a pixelated light pattern 100 and a non-pixelated light pattern 200. The angle difference between the upper and lower boundaries of the pixelated light pattern 100 ranges from 5° to 8°. The method for adjusting the light pattern of the illumination module includes adjusting the position of the pixelated light pattern 100 such that, in low beam illumination mode, the angle range of the lower boundary of the pixelated light pattern 100 is greater than or equal to -8° and less than or equal to -4°, and the angle range of the upper boundary is greater than or equal to 0° and less than or equal to 3°; in high beam illumination mode, the angle range of the lower boundary of the pixelated light pattern 100 is greater than or equal to -3° and less than or equal to -1°, and the angle range of the upper boundary is greater than or equal to 4° and less than or equal to 8°. It should be noted that the upper and lower boundary angles of the light pattern of the illumination module refer to the upper and lower boundary angles corresponding to the light pattern projected onto the light distribution screen.

[0060] The light pattern adjustment method of the lighting module of the present invention is a dimming method for pixelated lighting modules with a narrow range of upper and lower boundary angle differences. The light pattern adjustment method of the lighting module of the present invention can simultaneously meet the three functional requirements of high beam ADB, low beam cutoff line and road symbol projection, and can also effectively reduce the production cost of lighting modules using the light pattern adjustment method of the present invention, and has a good light pattern effect.

[0061] like Figures 6 to 12 As shown, a second aspect of the present invention also provides an illumination module, including at least one pixelated illumination unit 1 and at least one non-pixelated illumination unit 2. The pixelated illumination unit 1 includes a pixelated light source 11 and a pixelated light-emitting lens 12. The non-pixelated illumination unit 2 includes, along the light-emitting direction, a non-pixelated light source 21, a non-pixelated primary optical element 23, and a non-pixelated light-emitting lens 22. The pixelated light-emitting lens 12 and the non-pixelated light-emitting lens 22 are integrally formed. The pixelated illumination unit 1 is capable of projecting to form the pixelated light pattern 100, and the non-pixelated illumination unit 2 is capable of... The non-pixelated light pattern 200 can be projected. The lighting module can use the light pattern adjustment method of the above-mentioned lighting module to adjust the position of the pixelated light pattern 100 so that, in the low beam lighting mode, the angle range of the lower boundary of the pixelated light pattern 100 is greater than or equal to -8° and less than or equal to -4°, and the angle range of the upper boundary is greater than or equal to 0° and less than or equal to 3°; in the high beam lighting mode, the angle range of the lower boundary of the pixelated light pattern 100 is greater than or equal to -3° and less than or equal to -1°, and the angle range of the upper boundary is greater than or equal to 4° and less than or equal to 8°.

[0062] The light-emitting surfaces of the pixelated light-emitting lens 12 and the non-pixelated light-emitting lens 22 are formed as one piece, and preferably are curved surfaces with continuous and smooth curvature, so that the pixelated light-emitting lens 12 and the non-pixelated light-emitting lens 22 have good overall integrity and good shape effect.

[0063] Specifically, such as Figure 21 and Figure 22 As shown, a dimming mechanism is connected to the lighting module. This dimming mechanism includes three ball screw assemblies 4. Each ball screw assembly includes a ball screw 41 and a ball nut 42. One end of one ball screw 41 is connected to the heat sink 6 through the ball nut 42, and the other end is connected to a dimming actuator 5 fixed on the lamp body or a support fixed relative to the lamp body. The ball screws 41 of the other two ball screw assemblies 4 are connected to the heat sink 6 through the ball nuts 42, and the other ends are fixed on the lamp body or a support fixed relative to the lamp body. The centers of the balls of the two ball screws 41 form a horizontal dimming axis. When the dimming actuator 5 located at the top drives the ball screw 41 connected to it to move back and forth, the lighting module can rotate around the horizontal dimming axis, thereby dimming the lighting module and causing the pixelated light pattern 100 and the non-pixelated light pattern 200 of the lighting module to move up and down as a whole.

[0064] Because the pixelated light-emitting lens and the non-pixelated light-emitting lens are integrally formed, the pixelated illumination unit 1 and the non-pixelated illumination unit 2 are both integrated into one illumination module. The relative positions of the pixelated light pattern 100 and the non-pixelated light pattern 200 are fixed, thus ensuring that... Figure 1 When the pixelated light pattern 100 is adjusted downwards based on the lighting area shown to meet the requirements of the low beam lighting mode, the non-pixelated light pattern 200 also moves along with the pixelated light pattern 100. When both move downwards simultaneously, they form a shape like... Figure 5 The dark area 300 shown severely affects the low beam illumination effect.

[0065] Therefore, in order to solve the above-mentioned technical problems, more preferably, the non-pixelated primary optical element 23 includes a first primary optical element 231 and a second primary optical element 232, the first primary optical element 231 and the second primary optical element 232 are arranged in the vertical direction, the first primary optical element 231 is adapted to form a near-light broadening light pattern, and the second primary optical element 232 is adapted to form a light pattern for supplementing the dark area 300.

[0066] In this invention, such as Figures 6 to 8As shown, a first primary optical element 231 is disposed above a second primary optical element 232. The light-emitting surfaces of the first primary optical element 231 and the second primary optical element 232 are integrally formed. The first primary optical element 231 is used to form a near-beam broadening light pattern, and the second primary optical element 232 is used to form a light pattern to supplement the dark area 300. The non-pixelated light source 21 corresponding to the upper first primary optical element 231 is illuminated in both near-beam and high-beam illumination modes, while the non-pixelated light source 21 corresponding to the lower second primary optical element 232 is illuminated only in near-beam illumination mode and not in high-beam illumination mode. This ensures that the illumination module of the present invention does not experience any issues during the switching between near-beam and high-beam illumination modes. Figure 5 The dark area 300 shown in the diagram.

[0067] Optionally, such as Figure 9 and Figure 10 As shown, the non-pixelated primary optical element 23 includes two first primary optical elements 231, which are disposed on both sides of the pixelated illumination part 1, wherein the lower boundary of the light-emitting surface of the first primary optical element 231 on one side is located below the lower boundary of the light-emitting surface of the first primary optical element 231 on the other side.

[0068] In this specific embodiment, the non-pixelated primary optical element 23 includes two first primary optical elements 231, respectively disposed on both sides of the pixelated illumination section 1. Both first primary optical elements 231 are used to form a near-beam broadening beam pattern, wherein the lower boundary of the light-emitting surface of one first primary optical element 231 is located below the lower boundary of the light-emitting surface of the other first primary optical element 231. Figure 12 As shown, the upper boundary of the near-beam broadening beam pattern formed by the first primary optical element 231 near the lower boundary of the light-emitting surface is lower than the upper boundary of the beam pattern formed by the first primary optical element 231 near the lower boundary of the light-emitting surface. The light source corresponding to the first primary optical element 231 is turned on in high beam illumination mode and turned off in low beam illumination mode. In high beam illumination mode, the relative positions of the pixelated beam pattern 100 and the non-pixelated beam pattern 200 formed by the illumination module are... Figure 1 Same as shown; as Figure 11 As shown, the upper boundary of the near-beam broadened beam pattern formed by the first primary optical element 231 with its lower boundary near the light-emitting surface is higher than the upper boundary of the beam pattern formed by the first primary optical element 231 with its upper boundary near the lower boundary near the light-emitting surface. The light source corresponding to the first primary optical element 231 is turned on in near-beam illumination mode and turned off in high-beam illumination mode. In near-beam illumination mode, the relative positions of the pixelated beam pattern 100 and the non-pixelated beam pattern 200 formed by the illumination module are... Figure 3As shown in the diagram, the light output effect is better. The principle behind this method of avoiding the appearance of a dark area 300 during the switching between low beam and high beam illumination modes is explained as follows: In high beam illumination mode, assuming the light source corresponding to the first primary optical element 231 at the lower edge of the light-emitting surface is turned on, and the light source corresponding to the first primary optical element 231 at the upper edge of the light-emitting surface is turned off, then the relative positions of the pixelated light pattern 100 and the non-pixelated light pattern 200 formed by this illumination module are... Figure 13 As shown in the diagram, when switching from high beam mode to low beam mode, Figure 13 The non-pixelated light shape 200 will move down along with the pixelated light shape 100 to, for example... Figure 3 The indicated light pattern position satisfies the illumination requirements of the low beam mode. Therefore, in this invention, when switching from high beam mode to low beam mode, Figure 12 The light source corresponding to the first primary optical element 231 in the middle is turned off. Figure 11 When the light source corresponding to the first primary optical element 231 is turned on, no dark area 300 will be formed. During the switching between high beam and low beam illumination modes, the non-pixelated light source 21 corresponding to the non-pixelated illumination unit is selected and turned on to meet the illumination requirements, and no dark area 300 will be formed during the switching process.

[0069] It should be noted that, Figure 3 The diagram only illustrates the positional relationship between pixelated light pattern 100 and non-pixelated light pattern 200 in near-beam illumination mode. The actual positional relationship needs to be determined by controlling the brightness of the pixelated light source 11 to achieve the desired effect. Figure 20 The image shown shows the low beam pattern with a low beam cutoff line.

[0070] It can be seen that, in the process of switching between high beam lighting mode and low beam lighting mode, the pixelated lighting unit 1 and the non-pixelated lighting unit 2 in this invention will not have a dark area 300 compared with the lighting module with pixelated lighting unit 1 and non-pixelated lighting unit 2 in the prior art, thus resulting in a better lighting effect.

[0071] In addition, in this invention, the pixelated lighting unit 1 and the non-pixelated lighting unit 2 are arranged in the same module. The heat dissipation device provided for this module can dissipate heat from the pixelated lighting unit 1 and the non-pixelated lighting unit 2 as a whole, and the heat dissipation effect is good.

[0072] It should be noted that the upper and lower boundary angle difference of the pixelated light pattern area formed by the pixelated lighting unit 1 of the present invention is in the range of 5°-8°. The purpose is that if the pixelated light pattern area formed by the pixelated lighting unit 1 is larger than this range, the larger range of pixelated light pattern area can simultaneously satisfy the two functions of high beam ADB and low beam cutoff line and road symbol projection. However, a wide range of pixelated lighting modules will increase the design difficulty and inevitably lead to higher manufacturing costs. Therefore, the upper and lower boundary angle difference of the pixelated light pattern area of ​​the present invention is in the range of 5°-8°.

[0073] In another preferred embodiment of the present invention, the first primary optical element 231 and the second primary optical element 232 are light guide elements.

[0074] More preferably, such as Figures 14 to 18 As shown, the first primary optical element 231 and the second primary optical element 232 respectively include a primary optical element light-incident end 233, a primary optical element light channel 234 and a primary optical element light-outcrystal end 235 integrally formed from back to front. The molding material of the primary optical element light-incident end 233 is different from the molding material of the primary optical element light channel 234 and the primary optical element light-outcrystal end 235. The primary optical element light-incident end 233 is provided in a one-to-one correspondence with the non-pixelated light source 21.

[0075] More preferably, the light-incident end 233 of the primary optical element is a silicone molding part, and the light channel 234 and the light-outcident end 235 of the primary optical element are PC molding parts.

[0076] It should be noted that although the light-incident end 233, the light channel 234, and the light-exit end 235 of the primary optical element are made of different materials, they are formed into a single integral part. This results in the first primary optical element 231 and the second primary optical element 232 not only having good optical performance, but also having better heat resistance due to the better heat resistance of silicone than PC.

[0077] In another preferred embodiment of the present invention, the interface between the light-incident end 233 of the primary optical element and the light channel 234 of the primary optical element corresponding to the light-incident end 233 is set as a convex curved surface, which can play a better secondary light distribution role, making the light more concentrated and the light output effect better.

[0078] As a specific structural form of the present invention, the light-emitting surface of the pixelated light-emitting lens 12 is set as an outwardly convex curved surface, and the light-emitting surface of the non-pixelated light-emitting lens 22 is set as an extended curved surface. The light-emitting surface of the pixelated light-emitting lens 12 and the light-emitting surface of the non-pixelated light-emitting lens 22 are connected to a smooth curved surface with continuous curvature, thereby enabling the light-emitting surface of the lighting module to have good overall integrity and a better shape.

[0079] As another specific structural form of the present invention, such as Figure 19 As shown, the pixelated illumination unit 1 further includes an imaging lens group 13. The imaging lens group 13 includes a first imaging lens 131 and a second imaging lens 132 arranged sequentially from back to front. The first imaging lens 131 is configured as a biconvex lens with both the light-incident surface and the light-exit surface being convex. The second imaging lens 132 is configured as a convex-concave lens with the light-incident surface being concave and the light-exit surface being convex. The pixelated light-exiting lens 12 is configured as a biconvex lens with both the light-incident surface and the light-exit surface being convex.

[0080] In this invention, the first imaging lens 131 is configured as a biconvex lens with positive refractive power, where both the incident and emitting surfaces are convex. This allows the first imaging lens 131 to have a shorter focal length and higher refractive power, thereby reducing the distance between the first imaging lens 131 and the pixelated light source 11. The second imaging lens 132 is configured as a convex-concave lens with negative refractive power, where the incident surface is concave and the emitting surface is convex. This can cancel and correct the dispersion phenomenon caused by the light being refracted by the first imaging lens 131, and also reduce the distance between it and the first imaging lens 131 and the pixelated emitting lens 12. The pixelated emitting lens 12 is configured as a biconvex lens with positive refractive power, where both the incident and emitting surfaces are convex. This reduces the distance between it and the second imaging lens 132, thereby effectively reducing the front-to-back length of the pixelated illumination unit 1, resulting in a smaller illumination module size and lower manufacturing cost. The refractive power of the aforementioned lens represents its ability to process light. Positive refractive power means the lens can converge incoming light, while negative refractive power means the lens can diverge incoming light. The combination of the first imaging lens 131, the second imaging lens 132, and the pixelated light-emitting lens 12 can effectively counteract the dispersion during light refraction, resulting in a smaller dispersion range of the pixel light pattern, thus making the image clearer and the light pattern effect better.

[0081] More specifically, the pixelated light source 11 consists of multiple LED light-emitting units that can be independently controlled to turn on and off.

[0082] In this invention, when the pixelated light source 11 is configured with multiple LED light-emitting units, the light pattern of the pixelated light pattern 100 formed by some of the LED light-emitting units in one or more pixelated lighting units 1 can be used as a partial low beam light pattern. One or more non-pixelated lighting units 2 are used to form a non-pixelated low beam light pattern 200, which, together with the partial low beam light pattern, forms a complete light pattern for low beam illumination of vehicle headlights.

[0083] Furthermore, the pixelated light source 11 comprises multiple LED light-emitting units that can be independently controlled to turn on and off. The pixelated light source 11 of this invention can be configured as multiple LED light-emitting units that can be independently controlled to turn on and off, specifically as matrix-arranged LED particles or Micro LEDs, preferably Micro LEDs, i.e., a miniature LED light source. The size of each LED unit in this miniature LED light source is at the micrometer level, and the miniature LED light source is further preferably a rectangular array LED light source composed of tens of thousands of micrometer-level LED units. Using a miniature LED light source allows for smaller and denser pixels, resulting in higher clarity of the formed pixel image. This enables more precise control over the light pattern formed after the pixel image is projected, and the boundaries and changes in the position of the dark areas are more refined and smooth, better avoiding glare or blindness to pedestrians or drivers. Moreover, the rectangular array of the miniature LED light source can obtain a wider light pattern to illuminate the areas on both sides of the road, which is beneficial for drivers to observe pedestrians and road signs on both sides of the road.

[0084] Based on the aforementioned lighting module, a third aspect of the present invention provides a headlight comprising the lighting module described in any one of the technical solutions of the second aspect. Therefore, it possesses at least all the beneficial effects brought about by the technical solutions of the aforementioned lighting module embodiments, resulting in high precision and stability of the formed light pattern, no dark areas during the transition between low beam and high beam lighting patterns, excellent lighting effect, and a small space occupied by the lamp body with low manufacturing cost.

[0085] Furthermore, the vehicle of the fourth aspect of the present invention, including the headlights described in the third aspect of the present invention, also has all the beneficial effects brought about by the technical solutions of the above-described lighting module embodiments.

[0086] As can be seen from the above description, the light pattern adjustment method of the lighting module of the present invention improves the lighting effect by adjusting the upper and lower boundaries of the pixelated light pattern 100 in both low beam and high beam lighting modes. Furthermore, the lighting module of the present invention integrates the pixelated lighting unit 1 and the non-pixelated lighting unit 2 into the same module. Through the combination of the first primary optical element 231 and the second primary optical element 232, or multiple first primary optical elements 231, a light pattern that supplements the dark area 300 can be formed during the vertical adjustment of the pixelated light pattern 100, optimizing the light output effect. This results in better lighting effect for the pixelated light pattern 100 with a narrower range of upper and lower boundary angle differences. The lighting module structure forming this pixelated light pattern 100 is simple and has a low production cost.

[0087] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0088] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0089] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A lighting module capable of employing a light shape adjustment method, wherein the light shape of the lighting module includes pixelated light shape (100) and non-pixelated light shape (200), characterized in that, The angle difference between the upper and lower boundaries of the pixelated light shape (100) ranges from 5° to 8°. The light shape adjustment method of the lighting module includes adjusting the position of the pixelated light shape (100) so that in the low beam lighting mode, the angle range of the lower boundary of the pixelated light shape (100) is greater than or equal to -8° and less than or equal to -4°, and the angle range of the upper boundary is greater than or equal to 0° and less than or equal to 3°; in the high beam lighting mode, the angle range of the lower boundary of the pixelated light shape (100) is greater than or equal to -3° and less than or equal to -1°, and the angle range of the upper boundary is greater than or equal to 4° and less than or equal to 8°; the lighting module includes at least one pixelated lighting unit (1) and at least one non-pixelated lighting unit (1). The pixelated illumination unit (2) includes a pixelated light source (11) and a pixelated light-emitting lens (12). The non-pixelated illumination unit (2) includes, along the light-emitting direction, a non-pixelated light source (21), a non-pixelated primary optical element (23), and a non-pixelated light-emitting lens (22). The pixelated light-emitting lens (12) and the non-pixelated light-emitting lens (22) are integrally formed. The pixelated illumination unit (1) can project and form the pixelated light pattern (100), and the non-pixelated illumination unit (2) can project and form the non-pixelated light pattern (200). The non-pixelated primary optical element (23) includes a first primary optical element (231) and a second primary optical element (232). The first primary optical element (231) and the second primary optical element (232) are arranged in a vertical direction. The first primary optical element (231) is adapted to form a near-light broadening pattern, and the second primary optical element (232) is adapted to form a pattern that supplements the dark area (300); or The non-pixelated primary optical element (23) includes two first primary optical elements (231), which are disposed on both sides of the pixelated illumination part (1), wherein the lower boundary of the light-emitting surface of the first primary optical element (231) on one side is located below the lower boundary of the light-emitting surface of the first primary optical element (231) on the other side.

2. The lighting module according to claim 1, characterized in that, The first primary optical element (231) and the second primary optical element (232) are integrally formed.

3. The lighting module according to claim 2, characterized in that, The first primary optical element (231) and the second primary optical element (232) respectively include a primary optical element light-incident end (233), a primary optical element light channel (234) and a primary optical element light-outcrystal end (235) integrally formed from back to front. The molding material of the primary optical element light-incident end (233) is different from the molding material of the primary optical element light channel (234) and the primary optical element light-outcrystal end (235). The primary optical element light-incident end (233) is provided in a one-to-one correspondence with the non-pixelated light source (21).

4. The lighting module according to claim 3, characterized in that, The light-incident end (233) of the primary optical element is a silicone molding part, and the light channel (234) and the light-outcident end (235) of the primary optical element are PC molding parts.

5. The lighting module according to claim 4, characterized in that, The interface between the light-incident end (233) of the primary optical element and the light channel (234) of the primary optical element corresponding to the light-incident end (233) is set as a convex surface.

6. The lighting module according to any one of claims 1 to 5, characterized in that, The light-emitting surface of the pixelated light-emitting lens (12) is configured as an outwardly convex curved surface, and the light-emitting surface of the pixelated light-emitting lens (12) and the light-emitting surface of the non-pixelated light-emitting lens (22) are connected to form a smooth curved surface with continuous curvature.

7. The lighting module according to any one of claims 1 to 5, characterized in that, The pixelated illumination unit (1) further includes an imaging lens group (13), which includes a first imaging lens (131) and a second imaging lens (132) arranged sequentially from back to front. The first imaging lens (131) is configured as a biconvex lens with both the light-incident surface and the light-outcident surface being convex. The second imaging lens (132) is configured as a convex-concave lens with the light-incident surface being concave and the light-outcident surface being convex. The pixelated light-outcident lens (12) is configured as a biconvex lens with both the light-incident surface and the light-outcident surface being convex.

8. The lighting module according to any one of claims 1 to 5, characterized in that, The pixelated light source (11) consists of multiple LED light-emitting units that can be independently controlled to turn on and off.

9. A headlight, characterized in that, Includes the lighting module according to any one of claims 1 to 8.

10. A vehicle, characterized in that, Includes the headlight as claimed in claim 9.

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