Lighting modules, headlights and automobiles

Abstract

This application relates to a lighting module, a vehicle lamp, and an automobile. The transition optical surface of the lighting module includes a first transition region and a second transition region. The first transition region and the second direction have a first tilt angle, and the second transition region and the second direction have a second tilt angle, wherein the first tilt angle and the second tilt angle are different. Light generated by the lighting source enters the optical structure from a first light-incident surface, and after reflection by the reflective surface and the transition optical surface, it exits from a first light-emitting surface. Part of the light generated by the accompanying lighting module passes through the first transition region, is reflected by at least one side of the second direction inside the optical structure, and exits through the first light-emitting surface. Another part of the light generated by the accompanying lighting module passes through the second transition region and directly exits through the first light-emitting surface. The accompanying lighting module in this application can be combined with an optical structure used to diffuse the lighting source, preventing a hollow appearance when the first light-emitting surface of the optical structure is not lit when the accompanying lighting module is lit.

Description

Technical Field

[0001] This application relates to the field of automotive lighting technology, and more particularly to a lighting module, automotive lights, and automobiles. Background Technology

[0002] With the development of automotive lighting technology and the diversification of automotive headlight designs, higher requirements have been placed on the performance of lighting modules.

[0003] Current lighting modules primarily serve the purpose of nighttime illumination, focusing mainly on road lighting effects. They do not address the matching of the lighting module's internal lighting effect with other signal lights. For example, when the signal lights (such as daytime running lights) are on, the lighting module is not lit. The light-emitting surface of the lighting module cannot match the light-emitting angle of the signal lights, making it impossible to achieve a scenario where the lighting module lights up simultaneously with the signal lights. This limits the flexibility of the overall lighting effect. Utility Model Content

[0004] This application provides a lighting module, vehicle lights, and automobiles that can link the signal lights and the lighting module together to solve the technical problem that the vehicle lights cannot simultaneously illuminate the lighting module and the signal light module in non-lighting mode.

[0005] In a first aspect, this application provides a lighting module comprising: an optical structure having a first light-incident surface and a first light-exit surface spaced apart in a first direction, and a reflective surface and a transition optical surface disposed opposite each other in a second direction, the first direction and the second direction being perpendicular to each other; the transition optical surface including a first transition region and a second transition region; the first transition region having a first tilt angle with the second direction, and the second transition region having a second tilt angle with the second direction, the first tilt angle and the second tilt angle being different; a lighting source disposed toward the first light-incident surface, wherein light generated by the lighting source enters the optical structure from the first light-incident surface, is reflected by the reflective surface and the transition optical surface, and is emitted from the first light-exit surface; and an accompanying lighting module disposed toward the transition optical surface, wherein part of the light generated by the accompanying lighting module passes through the first transition region, is reflected by at least one side of the second direction inside the optical structure, and is emitted through the first light-exit surface, and another part of the light generated by the accompanying lighting module passes through the second transition region and is emitted directly through the first light-exit surface.

[0006] In some implementations, there is one or more second transition regions, wherein: at least a portion of the second transition regions are different from the second tilt angle formed by the second direction; or, one or more second transition regions are the same as the second tilt angle formed by the second direction; there is one or more first transition regions, and one or more first transition regions are the same as the second tilt angle formed by the second direction.

[0007] In some implementations, one or more of the first transition regions are located on the same plane.

[0008] In some implementations, there are more than one first transition region and one second transition region, and the first transition region and the second transition region are spaced apart along the second direction.

[0009] In some embodiments, the transition optical surface further includes a third transition region, through which adjacent first and second transition regions are connected; or, the first and second transition regions are sequentially connected along a second direction.

[0010] In some implementations, both the first transition region and the second transition region are inclined toward the first light-emitting surface; at least a portion of the accompanying lighting module is disposed on a third transition region of the plurality of third transition regions away from the first light-emitting surface.

[0011] In some implementations, at least one of the second transition region and the third transition region has a textured surface.

[0012] In some implementations, the first tilt angle is α1, the second tilt angle is α2, and α2 < α1.

[0013] In some embodiments, the accompanying illumination module has a second light-emitting surface facing the transition optical surface, the second light-emitting surface being arranged parallel to the second direction; wherein: α2 satisfies: 0°≤α2≤30°.

[0014] In some embodiments, a plurality of second transition regions are provided. Among the plurality of second transition regions, the second transition region near the second direction edge of the transition optical surface has a first dimension along the second direction, and the second transition region away from the second direction edge of the transition optical surface has a first dimension along the second direction; wherein, the first dimension is greater than or equal to the second dimension.

[0015] In some embodiments, three second transition regions are provided, wherein two second transition regions are located on both sides of the second direction of the transition optical surface, and another second transition region is located between the two second transition regions, wherein: the dimensions of the two second transition regions along the second direction are S1, and the dimensions of the other second transition region along the second direction are S2, and S1 and S2 satisfy: 1mm≤S1≤3mm; 0.5mm≤S2≤1mm.

[0016] In some embodiments, the accompanying illumination module includes: an accompanying illumination light source; and a light-diffusing element disposed between the accompanying illumination light source and the transition optical surface, wherein the light-diffusing element is a Fresnel inner lens, and the light-diffusing element has a second light-incident surface and a second light-exit surface opposite to each other along the first direction, the second light-incident surface facing the accompanying illumination light source and the second light-exit surface facing the transition optical surface, wherein: the second light-incident surface is provided with a Fresnel pattern, or / and, and the second light-exit surface is a corn kernel pattern.

[0017] In some embodiments, at least one of the second light-incident surface and the second light-exit surface is provided with a texture.

[0018] In some embodiments, the optical structure further has a first side and a second side, the first side extending in the first direction and disposed between the reflective surface and the first light-emitting surface, and the second side and the first side being disposed opposite each other along the second direction; wherein, after part of the light generated by the accompanying lighting module enters the optical structure, it passes through the transition optical surface and enters the optical structure to be projected onto the first side, after being reflected by the first side, part of the light is emitted from the first light-emitting surface, and another part of the light is projected onto the second side, and after being reflected by the second side, it is emitted from the first light-emitting surface.

[0019] In some embodiments, the lighting module further includes a first cover plate and a second cover plate, the first cover plate and the second cover plate being disposed on both sides of the optical structure in a second direction, the first cover plate covering at least a portion of the first side, the second cover plate covering at least a portion of the second side, and at least one of the first cover plate and the second cover plate having a textured surface on the side facing the optical structure.

[0020] In some embodiments, the first light-emitting surface includes a plurality of arc-shaped light-emitting convex surfaces and a plurality of connecting surfaces alternately connected along a third direction, wherein the first direction, the second direction, and the third direction are mutually perpendicular; along a second horizontal direction parallel to the third direction, the distance between the plurality of arc-shaped light-emitting convex surfaces and the accompanying illuminated light source gradually decreases in the first direction, and the plurality of arc-shaped light-emitting convex surfaces have a common focal position; the connecting surfaces are set at an angle to the third direction.

[0021] In a second aspect of this application, a vehicle lamp is also provided, the vehicle lamp including the lighting module described in the first aspect.

[0022] In some implementations, the lighting source and the optical structure are combined to form a high and low beam assembly, and the accompanying lighting module and the optical structure are combined to form a daytime lamp assembly.

[0023] In a third aspect of this application, an automobile is also provided, the automobile including a vehicle body and the headlights described in the second aspect, the headlights being mounted on the vehicle body.

[0024] Based on the lighting module, headlights, and automobiles of this application, by reusing the optical structure that transmits the light emitted by the lighting source, the transition optical surface of the optical structure can both reflect the light emitted by the lighting source entering the optical structure and receive the light generated by the accompanying lighting module. This allows the lighting module to integrate the functions of emitting lighting light and accompanying lighting light, so that the lighting module can work with other lighting structures to emit light and prevent the first light-emitting surface of the optical structure from being unlit, resulting in a hollow feeling.

[0025] By setting the first transition region and the second transition region of the transition optical surface to have different tilt angles relative to the second direction, some of the light generated by the lighting module can enter the optical structure through the first transition region. After being reflected on at least one side of the second direction inside the optical structure, it is emitted through the first light-emitting surface. Another part of the light generated by the lighting module can enter the optical structure through the second transition region and be emitted directly from the first light-emitting surface. Due to the different tilt angles, the propagation paths of the light after passing through the first and second transition regions are also different. Consequently, the emission directions and emission areas of the two light beams from the first light-emitting surface are also different, forming a complement. When the lighting module is working, it can ensure that the light emitted from the first light-emitting surface has a wider emission angle and emission area, so that external observers can observe the lighting of the first light-emitting surface from a wider perspective, and the first light-emitting surface can also present a more comprehensive lighting effect. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A three-dimensional structural schematic diagram of the lighting module 10 in one or more embodiments of this application is shown; Figure 2 It shows Figure 1 A schematic diagram of the side view structure; Figure 3 This invention provides a schematic diagram illustrating the optical path of light generated by a lighting source through an optical structure according to an embodiment of the present application. Figure 4 This diagram illustrates the optical path of light generated by the accompanying lighting module through the first optical structure according to an embodiment of this application. Figure 5 This diagram illustrates the optical path of light transmitted through the transition optical surface accompanying the illumination module. Figure 6 It shows Figure 1 Another structural diagram from a different perspective; Figure 7 It shows Figure 1 A top-view structural diagram; Figure 8 A schematic diagram of the structure of the light-diffusing element 320 in some embodiments is shown; Figure 9 It shows Figure 7 Another structural diagram from a different perspective; Figure 10 A schematic diagram of the optical structure 200 is shown; Figure 11 It shows Figure 10 A schematic diagram of the transition optical surface 260 of the optical structure 200 in the diagram; Figure 12 A schematic diagram of another transition optical surface 260 is shown; Figure 13 This illustration shows a schematic diagram of the light path of an observation light ray emitted from the first light-emitting surface 210 along the second direction Y, according to an embodiment of this application. Figure 14 This diagram illustrates the light path of light emitted from the arc-shaped convex surface along a second direction, according to an embodiment of this application. Figure 15 The diagram shows a top view of the connection surface of one embodiment of this application, which is connected to two adjacent arc-shaped light-emitting convex surfaces.

[0028] Figure label: 10. Illumination module; 100. Illumination source; 110. Illumination lamp bead; 200. Optical structure; 210. First light-emitting surface; 211. Arc-shaped light-emitting convex surface; 212. Connecting surface; 2121. First edge; 2122. Second edge; 220. First side surface; 230. Second side surface; 240. Reflective surface; 250. First light-incident surface; 260. Transition optical surface; 261. First transition area; 262. Second transition area; 263. Groove; 270. First cover plate; 280. Second cover plate; 290. Reflective bowl surface; 300. Accompanying lighting module; 310. Accompanying lighting source; 311. Accompanying lighting lamp bead; 320. Light-diffusing element; 321. Second light-incident surface; 322. Second light-emitting surface; X, First direction; Y, Second direction; Z, Third direction. Detailed Implementation

[0029] The technical solutions in this application will be clearly and thoroughly described below with reference to the accompanying drawings. In the description of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in the text is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, in the description of the embodiments of this application, "multiple" refers to two or more than two.

[0030] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0031] In related technologies, current lighting components (high and low beam headlights) mainly serve the purpose of nighttime illumination, and their performance focuses primarily on road lighting effects. The matching of the lighting components inside the headlights with the lighting effects of other signal lights is not addressed. For example, when the signal lights inside the headlights (such as daytime running lights) are lit, the lighting components are not lit, which means that the light-emitting surface of the lighting components cannot match the light-emitting angle of the signal lights. This makes it impossible to achieve a scenario where the lighting components are lit up simultaneously with the signal lights. The fact that the light-emitting surface of the lighting module is not lit results in a dim area with a hollow feel, which limits the flexibility of the overall headlight lighting effect.

[0032] Based on this, embodiments of this application provide a lighting module and a vehicle light that can associate the lighting components with the accompanying signal lights, so that when the signal lights are on and the lighting components are not on, the light-emitting surface of the lighting module can still provide a good light-emitting effect, thereby improving the signal lighting effect of the vehicle light.

[0033] Figure 1 A three-dimensional structural schematic diagram of the lighting module 10 in one or more embodiments of this application is shown. Figure 2 It shows Figure 1 A side view structural diagram. Combined with... Figure 1 as well as Figure 2 The lighting module 10 includes a lighting source 100, an optical structure 200, and an accompanying lighting module 300. The lighting source 100 and the optical structure 200 constitute the aforementioned lighting component. The lighting source 100, the optical structure 200, and the accompanying lighting module 300 cooperate with each other to ensure that the light-emitting surface of the lighting module can still provide a good light-emitting effect when the signal light is on and the lighting component is not lit.

[0034] The lighting component has at least one of a low beam lighting mode and a high beam lighting mode. For example, the lighting component has a low beam lighting mode and is configured to generate light for illumination in the low beam lighting mode; or, the lighting component has a high beam lighting mode and is configured to generate light for illumination in the high beam lighting mode; or, the lighting component has both a low beam lighting mode and a high beam lighting mode and is configured to switch its light emission state to generate light in the corresponding low beam lighting mode and high beam lighting mode. When the lighting module 10 is applied to vehicle lights, the low beam lighting mode is mainly used for road lighting in urban areas, intersections, and when two vehicles meet, while the high beam lighting mode is mainly used for road lighting on highways, in suburban areas, and in poor lighting conditions.

[0035] Combination Figure 1 as well as Figure 2 The optical structure 200 is positioned corresponding to the illumination source 100 to receive light generated by the illumination source 100 and the accompanying lighting module 300, and to project the light onto the outside of the illumination module 10. Specifically, the optical structure 200 is spaced apart from the illumination source 100 along the first direction X. The optical structure 200 has a first light-incident surface 250 and a first light-exit surface 210 opposite to each other along the first direction X. The first light-incident surface 250 is used to receive light generated by the illumination source 100. The illumination source 100 is positioned on one side of the first light-incident surface 250 of the optical structure 200. After the light generated by the illumination source 100 enters the optical structure 200 through the first light-incident surface 250, it is emitted from the first light-exit surface 210, so that the first light-exit surface 210 appears to be illuminated. When the illumination source 100 generates low beam light, the illumination module 10 is in low beam illumination mode. When the illumination source 100 generates high beam light, the illumination module 10 is in high beam illumination mode. Among them, when the vehicle headlight with the lighting module 10 is mounted on the vehicle body, the first direction X can be the horizontal direction, that is, the first direction X is the length direction of the vehicle body.

[0036] Combination Figure 1 as well as Figure 2The first light-incident surface 250 also includes a transition optical surface 260 for receiving light generated by the accompanying illumination module 300. The accompanying illumination module 300 is also spaced apart from the optical structure 200 along the first direction X. The accompanying illumination module 300 is located on one side of the transition optical surface 260 of the optical structure 200. The accompanying illumination module 300 and the illumination source 100 are spaced apart along the second direction Y, which is perpendicular to the first direction X. The light generated by the accompanying illumination module 300 enters the optical structure 200 through the transition optical surface 260 and exits from the first light-emitting surface 210 to illuminate the first light-emitting surface 210 of the optical structure 200. Therefore, the accompanying illumination module 300 can be combined with the optical structure 200 used to diffuse the illumination source 100 so that when the accompanying illumination module 300 generates light, an external observer can observe that the first light-emitting surface 210 is illuminated, presenting a good illumination effect and preventing the first light-emitting surface 210 from being unilluminated, thus avoiding a visual emptiness. Among them, when the vehicle headlight with the lighting module 10 is mounted on the vehicle body, the second direction Y can be the vertical direction, that is, the second direction Y is the height direction of the vehicle body.

[0037] It is understandable that the light generated by the lighting module 300 and the light generated by the lighting module 10 are emitted from the same first light-emitting surface 210, and the lighting module 300 and the lighting module 10 will share at least some optical elements.

[0038] Combination Figure 2 The optical structure 200 is a lens structure with thickness along the second direction Y. The first light-emitting surface 210 of the optical structure 200 is opposite to the illumination source 100 and the accompanying lighting module 300. The optical structure 200 also has a reflective surface 240. The reflective surface 240 and the transition optical surface 260 are arranged opposite to each other along the second direction Y. After the light generated by the illumination source 100 enters the optical structure 200, it is reflected by the reflective surface 240 and the transition optical surface 260 in sequence, and then emitted from the first light-emitting surface 210 to illuminate the first light-emitting surface 210 of the optical structure 200. Figure 3 (As shown).

[0039] Combination Figure 2 The lighting module 300 is positioned toward the transition optical surface 260, which is a semi-reflective surface. That is, the transition optical surface 260 can reflect the light inside the optical structure 200, and it can also allow external light to pass through so that the light enters the optical structure 200.

[0040] Combination Figure 2The transition optical surface 260 includes a first transition region 261 and a second transition region 262. The first transition region 261 and the second direction Y have a first tilt angle, and the second transition region 262 and the second direction Y have a second tilt angle. Part of the light generated by the lighting module 300 can enter the optical structure 200 through the first transition region 261, and after reflection on at least one side of the second direction Y inside the optical structure 200, it is emitted through the first light-emitting surface 210. Figure 4 As shown), another portion of the light generated by the lighting module 300 ( Figure 5 The light ray indicated by the middle arrow can enter the optical structure 200 through the second transition region 262 and exit directly from the first light-emitting surface 210. Figure 5 As shown in the figure, due to the difference between the first tilt angle and the second tilt angle, the propagation paths of the light generated by the lighting module 300 in the optical structure 200 are also different. Consequently, the emission directions and emission areas of the two light beams from the first light-emitting surface 210 are also different. This ensures that the first light-emitting surface 210 has a wider emission angle and emission area when the lighting module 300 is working, thereby improving the observation field of external observers and having good practicality.

[0041] like Figure 4 as well as Figure 5 As shown, some of the light generated by the lighting module 300, after being reflected sequentially through the first transition region 261 of the transition optical surface 260 and at least one side of the second direction Y inside the optical structure 200, travels along the second direction Y. Most of this light is concentrated after at least one deflection and exits from the area above the first light-emitting surface 210. Another portion of the light enters the optical structure 200 through the first transition region 261, travels within the optical structure 200 parallel or nearly parallel to the first direction X, and exits from the first light-emitting surface 210 along the same direction X, i.e., horizontally and directly from the first light-emitting surface 210. The light emanates from the middle region of the light-emitting surface 210. Thus, when the light is generated by the lighting module 300, a portion of the light generated by the lighting module 300 is emitted from the first light-emitting surface 210 at an upward angle. When an external observer looks down, the first light-emitting surface 210 can be observed to be lit. At the same time, another portion of the light generated by the lighting module 300 is emitted from the middle region of the first light-emitting surface 210. When an external observer looks at eye level, the first light-emitting surface 210 can also be observed to be lit. Furthermore, when an external observer looks down or at eye level, the effect of the first light-emitting surface 210 being lit is even brighter.

[0042] This application designs the light-emitting path inside the lighting module 10 so that when the accompanying lighting module 300 generates light, an external observer can see the first light-emitting surface 210 being lit from both top-down and level-down angles, presenting a good lighting effect. Moreover, the accompanying lighting module 300 does not interfere with the light path of the lighting module 10. Therefore, when the lighting module 10 of this application is applied to vehicle lights, the vehicle lights can achieve the effect of the lighting module 10 being lit simultaneously with the signal light module.

[0043] This application reuses the optical structure that transmits light emitted by the lighting source, enabling the transition optical surface of the optical structure to both reflect the light emitted by the lighting source entering the optical structure and receive the light generated by the accompanying lighting module. This allows the lighting module to integrate the functions of emitting lighting light and accompanying lighting light, so that the lighting module can work with other lighting structures to emit light and prevent the first light-emitting surface of the optical structure from appearing empty. Combination Figure 1 as well as Figure 2 For ease of description, the lighting module 10 is now defined to have a first direction X, a second direction Y, and a third direction Z, wherein the first direction X, the second direction Y, and the third direction Z are all perpendicular to each other, and the first direction X is... Figure 2 The left and right directions are shown, and the second direction Y is... Figure 2 The vertical direction is shown, and the third direction Z is... Figure 2 The diagram shows the front-to-back directions. When the lighting module 10 is applied to a vehicle, the first direction X represents the length of the vehicle body, the second direction Y represents the height of the vehicle body, and the third direction Z represents the height of the vehicle body. The specific details of the lighting module 10 will now be further described with reference to the accompanying drawings.

[0044] Figure 6 It shows Figure 1 A structural diagram from another perspective. Combined with... Figure 6 The lighting source 100 includes a plurality of lighting beads 110, which are capable of generating light. At least some of the lighting beads 110 are arranged at intervals along a third direction Z. Exemplarily, the plurality of lighting beads 110 are arranged in a straight line along the third direction Z, that is, the plurality of lighting beads 110 are arranged in only one row. In other arrangements, the plurality of lighting beads 110 form a plurality of light-emitting units arranged at intervals along a second direction Y. Each light-emitting unit includes at least one lighting bead 110, and when the number of lighting beads 110 in a light-emitting unit is multiple, the plurality of lighting beads 110 are arranged at intervals along the third direction Z, that is, the plurality of lighting beads 110 are arranged in multiple rows at intervals along the second direction Y.

[0045] Furthermore, the number and arrangement of the lighting beads 110 can be selected based on the desired lighting effect of the first light-emitting surface 210. For example, when the light generated by the lighting beads 110 is emitted through the first light-emitting surface 210 of the optical structure 200, the illuminated area of ​​the first light-emitting surface 210 can display the light and shadow accompanying the illuminated beads 311. By setting the arrangement of the multiple lighting beads 110 to form a pattern, the area of ​​the first light-emitting surface 210 illuminated by the multiple lighting beads 110 can display the corresponding pattern.

[0046] Combination Figure 1 as well as Figure 2 In some embodiments, the accompanying lighting module 300 includes an accompanying lighting light source 310, which includes multiple accompanying lighting LED beads 311. Similarly, the number and arrangement of the accompanying lighting LED beads 311 can be selected based on the desired lighting effect of the first light-emitting surface 210. For example, when the light generated by the accompanying lighting LED beads 311 is emitted through the first light-emitting surface 210 of the optical structure 200, the illuminated area of ​​the first light-emitting surface 210 can display the light and shadow of the accompanying lighting LED beads 311. By setting the arrangement of the multiple accompanying lighting LED beads 311 to form a pattern, the area of ​​the first light-emitting surface 210 illuminated by the multiple accompanying lighting LED beads 311 can display a corresponding pattern.

[0047] When it is not necessary to present the light and shadow of the accompanying LED 311 on the first light-emitting surface 210, or when the light and shadow of the accompanying LED 311 on the first light-emitting surface 210 is relatively blurry, a uniform light design can be performed at least at one point in the optical path between the accompanying light source 310 and the first light-emitting surface 210.

[0048] Combination Figure 1 as well as Figure 2 In some embodiments, a light homogenization design is performed on the optical path between the accompanying illumination light source 310 and the transition optical surface 260. For example, the accompanying illumination module 300 includes a plurality of accompanying illumination LEDs 311 and at least one light homogenizing element 320. The light homogenizing element 320 is disposed between the accompanying illumination light source 310 and the transition optical surface 260; that is, the light homogenizing element 320 is disposed on the light-emitting side of the accompanying illumination light source 310 and faces the transition optical surface 260.

[0049] Figure 7 It shows Figure 1 A top-view structural diagram. Combined with... Figure 1 , Figure 2 as well as Figure 7In some embodiments, multiple accompanying LED beads 311 are spaced apart along the third direction Z. When two adjacent accompanying LED beads 311 are spaced apart, the light generated by the accompanying light source 310 is homogenized by the light-diffusing element 320, passes through the transition optical surface 260, and enters the optical structure 200, blurring the light and shadow of the accompanying LED beads 311 on the first light-emitting surface 210, thus giving the first light-emitting surface 210 a sheet-like lighting effect.

[0050] It should be noted that, in this embodiment, the number and arrangement of the multiple accompanying LED beads 311 are not limited, and can be selected according to the installation space and the degree to which the first light-emitting surface 210 is illuminated. For example, the multiple accompanying LED beads 311 are arranged in a linear pattern, or in a matrix pattern, or in a ring pattern. In this process, the light generated by the multiple accompanying LED beads 311 is homogenized by the same light-diffusing element 320 and then projected onto the transition optical surface 260. When the accompanying lighting module 300 includes multiple light-diffusing elements 320, each light-diffusing element 320 performs light-diffusing processing on the light generated by the multiple accompanying LED beads 311. Two adjacent light-diffusing elements 320 are spaced apart in the first direction X to form the effect of multiple areas being lit at the first light-emitting surface 210. Alternatively, the multiple light-diffusing elements 320 can also be partially overlapped in the first direction X to form a larger light-diffusing area, thereby forming the effect of a larger area being lit at the light-emitting surface. By cooperating with the multiple light-diffusing elements 321 and the multiple accompanying LED beads 311, the flexibility of the lit area at the first light-emitting surface 210 is improved.

[0051] Combination Figure 1 , Figure 2 as well as Figure 7 For example, multiple accompanying LED beads 311 are arranged in a straight line along the third direction Z. The accompanying lighting module 300 includes a light-diffusing element 320, which is set for all accompanying LED beads 311 to perform light-diffusing processing on the light generated by all accompanying LED beads 311.

[0052] In some other embodiments, the number of accompanying LED beads 311 along the third direction Z can also be different from the number of lighting LED beads 110. For example, the number of multiple accompanying LED beads 311 arranged in a straight line along the third direction Z is greater than the number of multiple lighting LED beads 110. In this case, a smaller power accompanying LED bead 311 can be selected. Alternatively, the number of multiple accompanying LED beads 311 arranged in a straight line along the third direction Z is less than the number of multiple lighting LED beads 110. In this case, a larger power accompanying LED bead 311 can be selected to meet the brightness requirement of illuminating the first light-emitting surface 210.

[0053] It is understandable that the degree of blurring of the light and shadow projected onto the first light-emitting surface 210 by the accompanying LED beads 311 is related to the distance between two adjacent accompanying LED beads 311 and the distance between the accompanying LED beads 311 and the light-diffusing element 320. Specifically, when the distance between two adjacent accompanying LED beads 311 is constant, the smaller the distance between the accompanying LED beads 311 and the light-diffusing element 320, the less blurring of the light and shadow of the accompanying LED beads 311 by the light-diffusing element 320, and the greater the light flux received by the light-diffusing element 320 from the accompanying LED beads 311. Conversely, the larger the distance between the accompanying LED beads 311 and the light-diffusing element 320, the greater the blurring of the light and shadow of the accompanying LED beads 311 by the light-diffusing element 320, and the smaller the light flux received by the light-diffusing element 320 from the accompanying LED beads 311.

[0054] Combination Figure 2 as well as Figure 7 In some embodiments, along the third direction Z, the distance between two adjacent accompanying illuminated LED beads 311 is L1, and along the light emission direction of the accompanying illuminated light source 310, the distance between the accompanying illuminated LED beads 311 and the light-diffusing element 320 is L2, where 1.0≤L2 / L1≤2.0. For example, L2 / L1 can be 1.0, 1.2, 1.3, 1.5, 1.8, 2.0, or any range of the above two. Within the range of L2 / L1, the light flux of the accompanying illuminated LED beads 311 received by the light-diffusing element 320 and the light-diffusing effect of the light-diffusing element 320 on the light and shadow of the accompanying illuminated LED beads 311 can be taken into account, so that the light entering the optical structure 200 is sufficient, thereby making the first light-emitting surface 210 present a bright and blurred illumination effect.

[0055] Optionally, along the third direction Z, the spacing L1 between two adjacent accompanying LED beads 311 satisfies: 10mm ≤ L1 ≤ 15mm. For example, L1 can be 10mm, 11mm, 13mm, 14mm, 15mm, or any range thereof. Within the above spacing range, multiple accompanying LED beads 311 are prevented from occupying too much space, while facilitating the placement of the light-diffusing element 320 in a suitable position, resulting in a compact structure and preventing the accompanying lighting module 300 from occupying too much space in the first direction X.

[0056] The lighting effect of the first light-emitting surface 210 by the accompanying lighting module 300 is also related to the power of the accompanying lighting light source 310. Optionally, the accompanying lighting lamp bead 311 is a single-chip LED lamp bead with a power of P1, which satisfies the following condition: 1.0w ≤ P1 ≤ 2.0w. For example, P1 can be 1.0w, 1.2w, 1.5w, 1.8w, 2.0w, or any range of the above. Within the above power range, when the accompanying lighting lamp bead 311 generates light, it can make the first light-emitting surface 210 present a suitable lighting effect, and the power of the accompanying lighting lamp bead 311 is also low, saving energy.

[0057] Figure 8 A schematic diagram of the structure of the light-diffusing element 320 in some embodiments is shown. Figure 9 It shows Figure 7 A structural diagram from another perspective. Combined with... Figure 8 as well as Figure 9 In some embodiments, the light-diffusing element 320 is a Fresnel inner lens, and its material can be poly(methyl methacrylate) (PMMA) or polycarbonate (PPC). The light-diffusing element 320 has a second light-incident surface 321 and a second light-exiting surface 322 opposite to each other along the first direction X. The second light-incident surface 321 faces the accompanying illumination light source 310, and the second light-exiting surface 322 faces the transition optical surface 260. The second light-incident surface 321 is provided with a Fresnel pattern (such as...). Figure 8 As shown), this reduces lens thickness, lowers cost and weight, and achieves efficient light transmission and focusing. The second light-emitting surface 322 is decorated with a corn kernel pattern (as shown). Figure 9 As shown in the figure, this allows light to propagate in multiple directions, reduces specular reflection, eliminates light spots, and improves light uniformity and brightness.

[0058] In addition, at least one of the second light-incident surface 321 and the second light-emitting surface 322 of the light-diffusing element 320 is textured, so that at least one of the second light-incident surface 321 and the second light-emitting surface 322 of the light-diffusing element 320 is frosted, thereby reducing glare interference and improving visual comfort. For example, the texture model can be VDI33, VDI30 or VDI040.

[0059] It should be noted that having a textured surface on at least one of the second light-incident surface 321 and the second light-exiting surface 322 of the light-diffusing element 320 means that both the second light-incident surface 321 and the second light-exiting surface 322 of the light-diffusing element 320 have a textured surface; or, the second light-incident surface 321 of the light-diffusing element 320 has a textured surface, while the second light-exiting surface 322 does not; or, the second light-incident surface 321 of the light-diffusing element 320 does not have a textured surface, while the second light-exiting surface 322 has a textured surface. The textured surface can be set according to specific requirements, and this application does not impose any restrictions on this.

[0060] Combination Figure 1 as well as Figure 2 In some embodiments, combined with Figure 2 The light generated by the multiple LED beads 311 is emitted along the first direction X, the light-diffusing element 320 extends along the second direction Y, the light emission direction of the light-diffusing element 320 is perpendicular to the light-diffusing element 320, and the light emission direction of the light-diffusing element 310 can be parallel to the first direction X.

[0061] In some embodiments, along the second direction Y, the portion of the light-diffusing element 320 adjacent to the transition optical surface 260 is spaced apart from or attached to the optical structure 200, as long as the light-diffusing element 320 does not obstruct the light generated by the illumination source 100. Along the second direction Y, the portion of the light-diffusing element 320 away from the transition optical surface 260 may extend beyond the optical structure 200, allowing the light-diffusing element 320 to have a larger size and receive more light generated by the accompanying illumination source 310, thus improving light utilization. Of course, in other embodiments, along the second direction Y, the portion of the light-diffusing element 320 away from the illumination source 100 may not extend beyond the optical structure 200, thereby reducing the size of the illumination module 10 along the second direction Y and resulting in a more compact structure.

[0062] Figure 10 A schematic diagram of the optical structure 200 is shown, combined with Figure 10 In some embodiments, the optical structure 200 has a first end and a second end that are opposite to each other along the first direction X. The first end of the optical structure 200 is a first light-emitting surface 210, and the second end of the optical structure 200 is provided with a first light-incident surface 250 and a transition optical surface 260. Along the second direction Y, the first light-incident surface 250 protrudes from the first light-emitting surface 210. That is, along the first direction X, the projection of the first light-emitting surface 210 and the projection of the first light-incident surface 250 do not coincide. The first light-emitting surface 210 and the first light-incident surface 250 are arranged in a staggered manner, and the transition optical surface 260 and the first light-emitting surface 210 are arranged opposite to each other along the first direction X.

[0063] Combination Figure 10In some embodiments, the optical structure 200 further includes a reflective bowl 290, which is disposed at the second end of the optical structure 200 and between the first light-incident surface 250 and the transition optical surface 260. The first light-incident surface 250 receives light generated by the illumination source 100 and projects the light into the optical structure 200 after being deflected by the reflective bowl 290. For example, in combination with... Figure 3 The light emitted by the illumination source 100 is deflected by the reflective surface 290 to form parallel light. Within the optical structure 200, it is reflected by the reflective surface 240 and projected onto the transition optical surface 260. After reflection by the transition optical surface 260, the light is output along the first direction X, causing the light emitted by the illumination source 100 to diffuse out from the first light-emitting surface 210, covering the entire first light-emitting surface 210. The light emitted by the illumination source 100 primarily serves an illumination function, allowing the driver to observe the external environment of the vehicle. The driver's gaze is generally parallel to the first direction X. Figure 3 When viewed in the direction of the arrow, the light diverges along the second direction Y, providing the driver with a wider field of view.

[0064] Combination Figure 10 In some embodiments, the optical structure 200 further has a first side and a second side arranged opposite to each other along the second direction Y. A first side surface 220 and a reflective surface 240 are provided on the first side. The first side surface 220 and the reflective surface 240 are arranged sequentially from the first end to the second end. The first side surface 220 extends along the first direction X. The first side surface 220 and the first light-incident surface 250 are connected through the reflective surface 240. Since the first light-incident surface 250 protrudes from the first light-outceasing surface 210, the side of the reflective surface 240 facing the first side surface 220 is inclined toward the first light-outceasing surface 210.

[0065] Combination Figure 10 The optical structure 200 also has a second side 230 disposed opposite to the first side 220. The second side 230 is disposed on the second side of the optical structure 200. The second side 230 and the first side 220 are disposed opposite to each other in the second direction Y. A portion of the light generated by the lighting module 300 is transmitted to the first side 220 through the transition optical surface 260 and reflected by the first side 220. Most of the reflected light is emitted from the area of ​​the first light-emitting surface 210 away from the first side 220 at an upward angle; another small portion of the light is reflected to the second side 230 and, after being reflected by the second side 230, is emitted from the first light-emitting surface 210.

[0066] In some embodiments, at least one of the first side surface 220 and the second side surface 230 is also provided with a textured surface, so that at least one of the first side surface 220 and the second side surface 230 has a frosted finish, thereby reducing glare interference and improving visual comfort. For example, the texture model can be VDI33, VDI30 or VDI040.

[0067] It should be noted that having a textured surface on at least one of the first side 220 and the second side 230 means that both the first side 220 and the second side 230 have a textured surface; or, the second side 230 has a textured surface but not the other side; or, the first side 220 does not have a textured surface but the second side 230 does. The textured surface can be set according to specific requirements, and this application does not impose any restrictions on this.

[0068] Combination Figure 10 The edge of the second side surface 230 facing the second end is connected to the transition optical surface 260. The side of the transition optical surface 260 facing the second side surface 230 is also inclined towards the direction of the first light-emitting surface 210. The transition optical surface 260 and the reflecting surface 240 have the same or similar tilt angle, that is, the transition optical surface 260 and the reflecting surface 240 are parallel or nearly parallel. By using two parallel or nearly parallel reflecting surfaces to reflect light, the light generated by the illumination source 100 can be output along the first direction X and directly emitted from the first light-emitting surface 210, thereby reducing the energy loss of light after reflection and increasing the lighting effect of the first light-emitting surface 210 when the illumination source 100 is working.

[0069] Please refer to the following: Figure 2 as well as Figure 10Since both the reflective surface 240 and the transition optical surface 260 are inclined toward the side where the first light-emitting surface 210 is located along the first direction X, that is, both the reflective surface 240 and the transition optical surface 260 are inclined toward the side away from the accompanying lighting module 300. On the one hand, this is to meet the light emission requirements of the lighting source 100 by reflecting the light generated by the lighting source 100 toward the first light-emitting surface 210, thereby reducing the optical path of the light generated by the lighting source 100 in the first direction X. On the other hand, it allows the light generated by the accompanying lighting module 300 to smoothly pass through the transition optical surface 260 and enter the interior of the optical structure 200, and then be projected onto the first side surface 220 at a suitable angle, and then onto the first light-emitting surface 210 at a suitable angle, and finally be emitted from the first light-emitting surface 210 at an upward angle, thereby just meeting the viewing angle requirements of the external observer when observing the first light-emitting surface 210. The accompanying lighting module 300 of this application utilizes the space on one side of the lighting source 100 and the optical structure 200 originally used to conduct the light from the lighting source 100 to smoothly conduct the light generated by the accompanying lighting module 300. This allows the first light-emitting surface 210 to be lit by both the lighting source 100 and the accompanying lighting module 300, eliminating the need for a separate optical structure 200 to transmit the light from the accompanying lighting module 300. The structure is simple and occupies little space.

[0070] Figure 11 It shows Figure 10 A schematic diagram of the transition optical surface 260 of the optical structure 200. (Combined with...) Figure 11 In some embodiments, the outer surface of the transition optical surface 260 is divided by a first transition region 261 and a second transition region 262. By reasonably setting the tilt angle of the first transition region 261 and the second transition region 262 with the second direction Y, some of the light generated by the accompanying lighting module 300 can be output through the second transition region 262 along the first direction X and directly emitted from the first light-emitting surface 210. This reduces the energy loss of light after reflection and increases the lighting effect of the first light-emitting surface 210 when the accompanying lighting module 300 is working. Furthermore, when an external observer observes from a level angle, the lighting effect of the first light-emitting surface 210 is brighter.

[0071] Combination Figure 11In some embodiments, both the first transition region 261 and the second transition region 262 are inclined toward the first light-emitting surface 210. The first inclination angle formed by the first transition region 261 and the second direction Y is α1, and the second inclination angle formed by the second transition region 262 and the second direction Y is α2, where α2 < α1. That is, the first transition region 261 is more inclined toward the first direction X than the second transition region 262. When the lighting module 300 is working, the light generated by the lighting module 300 that is transmitted through the second transition region 262 is closer to the first direction X than the light transmitted through the first transition region 261. This allows some of the light generated by the lighting module 300 to pass through the second transition region 262 without being reflected by the side of the optical structure 200 and to be output along the first direction X, and directly emitted from the first light-emitting surface 210, thereby achieving the above-mentioned effect.

[0072] In some embodiments, α2 satisfies: 0°≤α2≤30°. That is, the second transition region 262 is made as close as possible to the second direction Y. Since the light generated by the accompanying lighting module 300 is emitted along the first direction X, the setting of the second transition region 262 being close to the second direction Y allows the light generated by the accompanying lighting module 300 to be transmitted through the second transition region 262 in a vertical direction, thereby ensuring the transmittance of the accompanying lighting module 300 through the second transition region 262, reducing energy loss, and ensuring the illumination effect of the first light-emitting surface 210 when the accompanying lighting module 300 is working. Ideally, the second transition region 262 is set parallel to the second direction Y, that is, the second tilt angle is 0°. However, since the second transition region 262 also reflects the light generated by the lighting source 100, in order to ensure the lighting effect of the first light-emitting surface 210 when the lighting source 100 is working, the second tilt angle cannot be too small. Based on this, this application sets the second tilt angle between 0° and 30° to ensure the lighting effect of the first light-emitting surface 210 when the lighting module 300 or the lighting source 100 is working. For example, the second tilt angle α2 can be 0°, 10°, 20°, 30° or any one of the above values.

[0073] Combination Figure 11 In some embodiments, there is one or more second transition regions 262. Since the light generated by the accompanying lighting module 300 is output in a directional manner, by setting one or more second transition regions 262, it can be ensured that the light generated by the accompanying lighting module 300 has multiple beams that are transported in the optical structure 200 along the first direction X, so as to ensure the brightness of the first light-emitting surface 210 when it is lit.

[0074] In some embodiments, at least a portion of the second transition region 262 differs from the second tilt angle formed by the second direction Y. Exemplarily, in combination with... Figure 11Three second transition regions 262 are provided, two of which are located on either side of the transition optical surface 260 in the second direction Y, and the third is located between the two second transition regions 262. That is, the three second transition regions 262 are respectively the upper second transition region 262, the middle second transition region 262, and the lower second transition region 262. The second tilt angle of the upper and lower second transition regions 262 is 20°, and the second tilt angle of the middle and lower second transition regions 262 is 10°. Of course, the second tilt angles of the three second transition regions 262 can be completely different. In other embodiments, one or more second transition regions 262 have the same second tilt angle as the second direction Y. That is, the second tilt angles of multiple second transition regions 262 are all the same angle.

[0075] It should be noted that since the light generated by the illumination source 100 is mainly reflected by the middle of the transition optical surface 260, in some embodiments, the second tilt angle of the second transition region 262 located on both sides of the second direction Y of the transition optical surface 260 can be set to be smaller, so as to further improve the illumination effect of the first light-emitting surface 210 when the lighting module 300 is working, while taking into account the lighting effect of the first light-emitting surface 210 when the illumination source 100 is working.

[0076] Furthermore, as described above, since the light generated by the illumination source 100 is mainly reflected by the middle of the transition optical surface 260, in order to further improve the illumination effect of the first light-emitting surface 210 when the accompanying lighting module 300 is working, in some embodiments, multiple second transition regions 262 are provided. Among the multiple second transition regions 262, the second transition region 262 near the edge of the second direction Y of the transition optical surface 260 has a first dimension along the second direction Y, and the second transition region 262 away from the edge of the second direction Y of the transition optical surface 260 has a first dimension along the second direction Y; wherein, the first dimension is greater than or equal to the second dimension. That is, the length of the second transition region 262 that affects the reflection of the light generated by the illumination source 100 is shortened as much as possible, while the length of the second transition region 262 with a smaller impact is lengthened, thereby further improving the illumination effect of the first light-emitting surface 210 when the accompanying lighting module 300 is working, while taking into account the illumination effect of the first light-emitting surface 210 when the illumination source 100 is working.

[0077] Combination Figure 11In some embodiments, the dimensions of two second transition regions 262 located on both sides of the second direction Y of the transition optical surface 260 along the second direction Y are S1, and the dimension of another second transition region 262 along the second direction Y is S2. S1 and S2 satisfy: 1mm ≤ S1 ≤ 3mm; 0.5mm ≤ S2 ≤ 1mm. For example, S1 can be 1mm, 1.5mm, 2mm, 2.5mm, 3mm, or any value between the two, and S2 can be 0.5mm, 0.7mm, 0.8mm, 0.9mm, 1mm, or any value between the two. The specific values ​​can be set according to the actual situation, and this application will not elaborate on them.

[0078] Combination Figure 11 In some embodiments, more than one first transition region 261 is provided, and the first transition region 261 has the same second tilt angle as the second direction Y. This arrangement allows more than one first transition region 261 to have the same tilt angle, ensuring that the illumination source 100 emitted through the first transition region 261 is output in the same direction. In other arrangements, at least some of the first transition regions 261 may have different second tilt angles than the second direction Y. The second tilt angle α1 satisfies: 35° ≤ α1 ≤ 55°. For example, the second tilt angle α2 can be 35°, 40°, 450°, 50°, 55°, or any value of both; this application does not impose any limitation on this.

[0079] Combination Figure 11 In some embodiments, one or more first transition regions 261 are located on the same plane. Figure 12 A schematic diagram of another transition optical surface 260 is shown. Combined with... Figure 12 In other embodiments, one or more first transition regions 261 may be located on different planes, and one or more first transition regions 261 are spaced apart along the transmission direction of the light generated by the accompanying lighting module 300 through the transition optical surface 260.

[0080] In some embodiments, one or more first transition regions 261 and second transition regions 262 are provided, and the first transition regions 261 and second transition regions 262 are spaced apart along the second direction Y.

[0081] Combination Figure 11In some embodiments, the transition optical surface 260 further includes a third transition region 263, which connects adjacent first transition regions 261 and second transition regions 262. Specifically, the outer surface of the transition optical surface 260 is a plane, and a groove 264, which is V-shaped, is formed on the outer surface. One sidewall of the groove 264 is configured as the second transition region 262, and the other sidewall is configured as the third transition region 263. The portion of the transition optical surface 260 located between adjacent grooves 264 is configured as the first transition region 261. Light generated by the illumination source 100 reflects the third transition region 263, and light generated by the lighting module 300 is transmitted through the third transition region 263 into the optical structure 200. The third transition region 263 can be positioned along the first direction X, or it can have a certain tilt angle with the first direction X; this application does not limit this.

[0082] In addition, combined Figure 11 Multiple grooves 264 are provided along the second direction Y, and the multiple grooves 264 are spaced apart. For example, the number of grooves 264 is 2-5, such as 2, 3, 4 or 5, etc., which can be set according to the height of the light-diffusing element 320 and the length of the transition optical surface 260 along the second direction Y. This application does not limit this.

[0083] Combination Figure 12 In other embodiments, the outer surface of the transition optical surface 260 is generally sawtooth-shaped, and the first transition region 261 and the second transition region 262 are connected sequentially along the second direction Y to form a transition optical surface 260 having only the first transition region 261 and the second transition region 262.

[0084] Please refer to it again. Figure 1 , Figure 2 as well as Figure 11 In some embodiments, at least a portion of the accompanying illumination module 300 is disposed on a plurality of third transition regions 263 away from the first light-emitting surface 210. Exemplarily, the light-diffusing element 320 is disposed in one of the plurality of grooves 264 away from the first light-emitting surface 210, that is, the light-diffusing element 320 is disposed in the lower groove 264. This arrangement allows the light-diffusing element 320 to fit as close as possible to the transition optical surface 260250 without obstructing the transmission of light generated by the accompanying illumination light source 310. Exemplarily, the light-diffusing element 320 is perpendicular to the third transition region 263 of the groove 264. In other arrangements, the light-diffusing element 320 may also be tilted towards the third transition region 263 of the groove 264; this application does not limit this.

[0085] In some embodiments, at least one of the surfaces of the second transition region 262 and the third transition region 263 is provided with a textured surface, that is, the inner wall of the groove 264 is provided with a textured surface, so that the inner wall of the groove 264 is frosted to reduce glare interference and improve visual comfort. Exemplarily, the texture type can be VDI33, VDI30 or VDI040. In other embodiments, the entire outer surface of the transition optical surface 260 may also be provided with a textured surface, and this application does not limit this.

[0086] Please refer to it again. Figure 1 as well as Figure 2 In some embodiments, the lighting module 10 further includes a first cover plate 270 and a second cover plate 280. The first cover plate 270 and the second cover plate 280 are respectively disposed on both sides of the optical structure 200 in the second direction Y. The first cover plate 270 covers at least a portion of the first side 220, that is, the first cover plate 270 is disposed on the outer side of the first side 220. The second cover plate 280 covers at least a portion of the second side 230. At least one of the first cover plate 270 and the second cover plate 280 has a textured surface on the side facing the optical structure 200, that is, at least one of the inner sides of the first cover plate 270 and the second cover plate 280 has a textured surface, so that at least one of the inner sides of the first cover plate 270 and the second cover plate 280 is aluminum-plated to reduce glare interference, improve visual comfort, and prevent light leakage. For example, the texture model can be VDI33, VDI30 or VDI040.

[0087] It should be noted that "at least a portion of the first cover plate 270 covering the first side wall 2531" refers to: the portion of the first cover plate 270 covering the first side wall 220 for reflecting light, that is, a part of the first cover plate 270 covering the first side wall 220; or, the entire first cover plate 270 covering the first side wall 220. Similarly, "at least a portion of the second cover plate 280 covering the second side wall 230" refers to: the portion of the second cover plate 280 covering the second side wall 230 for reflecting light, that is, a part of the second cover plate 280 covering the second side wall 230; or, the entire second cover plate 280 covering the second side wall 2531. The entirety of the second side 230 can be configured according to the portion of the corresponding side that reflects light. Furthermore, the statement that at least one of the inner sides of the first cover plate 270 and the second cover plate 280 has a textured surface means: both the inner sides of the first cover plate 270 and the inner sides of the second cover plate 280 have a textured surface; or, the inner side of the first cover plate 270 has a textured surface, while the inner side of the second cover plate 280 does not; or, the inner side of the first cover plate 270 does not have a textured surface, while the inner side of the second cover plate 280 does. These can be configured according to specific requirements, and this application does not impose any restrictions on this.

[0088] Figure 13This diagram illustrates the light path of a ray emitted from the first light-emitting surface 210 along the second direction Y, according to an embodiment of this application. (Combined with...) Figure 13 The optical structure 200 has a first side and a second side arranged opposite each other in the third direction Z. Along the first direction X parallel to the third direction Z, the distance between the first light-emitting surface 210 and the illumination source 100 tends to decrease, so that the illumination module 10 can be applied to the styling requirements of vehicle lights. Similarly, along the first direction X parallel to the third direction Z, the distance between the first light-emitting surface 210 and the accompanying illumination source 310 also tends to decrease. Due to the light-diffusing effect of the light-diffusing element 320, the light passing through the light-diffusing element 320 enters the interior of the optical structure 200 evenly, and after being deflected by the first side surface 220, it is not easily affected by the surface shape of the first light-emitting surface 210, and can be emitted from the area of ​​the first light-emitting surface 210 away from the first side surface 220 and the middle area of ​​the first light-emitting surface 210.

[0089] Considering that under the effect of homogenization, although some light rays can be emitted from the first light-emitting surface 210 in a divergent state, the divergence angle is limited, making it difficult to meet the observation requirements of a large viewing angle. For example, when the first light-emitting surface 210 is a smooth arc-shaped surface, an external observer in the first direction X, on the side of the optical structure 200 away from the illumination source 100, can observe the first light-emitting surface 210 being lit from a top-down or level perspective. However, when the external observer is on the second side of the optical structure 200, relying solely on the effect of homogenization, the emission angle of the light rays emitted from the first light-emitting surface 210 is small, and the degree to which the external observer can observe the first light-emitting surface 210 being lit is relatively weak, or even not at all. Based on this, the embodiments of this application further design the first light-emitting surface 210 so that the light rays generated by the illumination source 310 can be emitted at a large angle in the third direction Z, allowing external observers to observe the first light-emitting surface 210 being lit from more positions.

[0090] Figure 14 This diagram illustrates the light path of light emitted from the arc-shaped convex surface along a second direction, according to one embodiment of this application. In some embodiments, such as... Figure 13 as well as Figure 14 As shown, the first light-emitting surface 210 includes a plurality of arc-shaped light-emitting convex surfaces 211 arranged sequentially along the third direction Z. Adjacent arc-shaped light-emitting convex surfaces 211 are spaced apart in the first direction X. Along the third direction Z, the distance between the plurality of arc-shaped light-emitting convex surfaces 211 and the accompanying illuminated light source 310 gradually decreases in the first direction X, and the plurality of arc-shaped light-emitting convex surfaces 211 have a common focal position. This arrangement, on the one hand, allows for... Figure 10As shown, when viewed along the second direction Y, the first light-emitting surface 210 is approximately arc-shaped, which facilitates the application of the lighting module 10 to the styling requirements of automobiles. On the other hand, multiple arc-shaped light-emitting convex surfaces 211 are spliced ​​together to emit light generated by the lighting source 100, which can meet the light emission requirements of the lighting module 10 in both high beam and low beam lighting modes. Since the first light-emitting surface 210 is divided into multiple arc-shaped light-emitting convex surfaces 211, and along the third direction Z, the distance between the multiple arc-shaped light-emitting convex surfaces 211 and the accompanying lighting source 310 gradually decreases in the first direction X, so that adjacent arc-shaped light-emitting convex surfaces 211 can be spaced apart in the first direction X. In this embodiment, the first light-emitting surface 210 is subjected to Fresnel processing, and the space between adjacent arc-shaped light-emitting convex surfaces 211 in the first direction X is used to emit at least a portion of the light from the accompanying lighting module 300 at a large angle, so that external observers can observe the first light-emitting surface 210 being lit from more positions.

[0091] like Figure 13 As shown, in some embodiments, the first light-emitting surface 210 includes multiple connecting surfaces 212. Two adjacent arc-shaped light-emitting convex surfaces 211 are connected by a connecting surface 212. That is, the first light-emitting surface 210 includes multiple arc-shaped light-emitting convex surfaces 211 and multiple connecting surfaces 212 alternately connected along the third direction Z. When viewed along the second direction Y, the first light-emitting surface 210 generally presents an approximately arc shape. The connecting surfaces 212 are set at an angle to the third direction Z. When the light generated by the lit light source 310 is emitted from the first light-emitting surface 210 at random angles after being homogenized, a portion of the light is emitted from the multiple arc-shaped light-emitting convex surfaces 211, and another portion is emitted from the multiple connecting surfaces 212. Figure 13 The direction indicated by the middle arrow is a schematic diagram of light rays emanating from multiple connecting surfaces 212 according to an embodiment of this application. Figure 14 The direction indicated by the dashed arrow is a schematic diagram of light emanating from two arc-shaped light-emitting convex surfaces 211 located at the edge in one embodiment of this application. When viewed along the second direction Y, the light can be emitted from the connecting surface 212 at a large angle to the first direction X. An external observer on the second side of the optical structure 200 can also observe that the first light-emitting surface 210 is lit.

[0092] In some embodiments, the connecting surface 212 is planar, or it may be a convex arc-shaped curved surface. This application does not limit the shape of the connecting surface 212; any shape that allows at least a portion of the connecting surface 212 to form an angle with the first direction X, so that the light accompanying the lighting module 300 can be emitted at a large angle, is applicable to this application.

[0093] Figure 15 This diagram shows a top view of the connection surface and two adjacent arc-shaped light-emitting convex surfaces according to an embodiment of this application. (Combined with...) Figure 15The connecting surface 212 has an extending direction, which is the direction from the first edge 2121 of the connecting surface 212 towards the second edge 2122. The first edge 2121 of the connecting surface 212 is the edge facing the accompanying lighting module 300 in the first direction X, and the second edge 2122 of the connecting surface 212 is the edge away from the accompanying lighting module 300 in the first direction X. The angle between the extending direction of the connecting surface 212 and the first direction X is α3, where α3 satisfies: 0° ≤ α3 ≤ 5°. For example, α3 can be 0°, 1°, 2°, 3°, 5°, or any range of the above. Figure 15 The diagram shows a structural schematic of an embodiment of this application where the angle α between the extension direction of the connecting surface 212 and the first direction X is 0°. Within the aforementioned angle range, light rays inside the optical structure 200 can exit from the connecting surface 212 at a large angle. Simultaneously, the connecting surface 212 occupies less space in the third direction Z, preventing excessive space in the connecting surface 212 in the third direction Z from encroaching on the area of ​​the arc-shaped light-emitting convex surface 211. This reduces the interference of the connecting surface 212 on the emitted light rays in both high-beam and low-beam illumination modes, ensuring that the first light-emitting surface 210 has a suitable area for emitting light generated by the illumination source 100. To meet the light output requirements of both high beam and low beam lighting modes, the arc-shaped light-emitting convex surface 211 has a diverging effect on the outward emitted light generated by the lighting source 100. At the same time, the arc-shaped light-emitting convex surface 211 also has a diverging effect on the outward emitted light generated by the accompanying lighting module 300. After the light generated by the accompanying lighting module 300 has undergone light homogenization processing, when viewed along the second direction Y, some of the light from the accompanying lighting module 300 is also emitted from the arc-shaped light-emitting convex surface 211 in a divergent manner. The arc-shaped light-emitting convex surface 211 cooperates with the connecting surface 212 to emit light. When the accompanying lighting source 310 generates light, the first light-emitting surface 210 can be observed to be illuminated in a sheet-like manner from multiple angles.

[0094] In some embodiments, the arc-shaped light-emitting convex surface 211 is an arc surface with a radius of curvature of R, where 40mm ≤ R ≤ 50mm. For example, R can be 40mm, 44mm, 45mm, 48mm, 50mm, or any range thereof. The larger the radius of curvature of the arc-shaped light-emitting convex surface 211, the gentler the arc along the first direction X, and the smaller the degree of deflection of light emitted from the interior of the optical structure 200. Conversely, the smaller the radius of curvature of the arc-shaped light-emitting convex surface 211, the steeper the arc along the first direction X, and the greater the degree of deflection of light emitted from the interior of the optical structure 200. Furthermore, a greater degree of deflection results in a larger external viewing angle but a smaller brightness effect; conversely, a smaller degree of deflection results in a smaller external viewing angle but a greater brightness effect. This application selects the radius of curvature R of the arc-shaped light-emitting convex surface 211 within the aforementioned range, facilitating that the emitted light has appropriate brightness and diffusion angle to illuminate the external environment in both high-beam and low-beam illumination modes, and that the first light-emitting surface 210 can exhibit appropriate brightness when accompanied by light generated by the lighting module 300. To further improve the light emission effect from the connecting surface 212, in some embodiments, the connecting surface 212 is provided with multiple first microstructures. The light is deflected at least once at each first microstructure before being emitted, so that some of the light inside the optical structure 200 is diffusely scattered after being deflected by multiple first microstructures, further blurring the lamp shadow accompanying the lighting source 310, and making the connecting surface 212 present a uniformly illuminated effect. This application does not limit the type of first microstructure; any first microstructure that can have a uniform light emission effect is applicable to this application.

[0095] The first microstructure is either concave inward or convex outward. Along the third direction Z, the thickness of the first microstructure is 0mm < h1 ≤ 2mm to prevent the second microstructure from being too thick and occupying the space of the arc-shaped light-emitting convex surface 211 in the third direction Z.

[0096] Since multiple arc-shaped light-emitting convex surfaces 211 need to share a common focal position, the size of the first microstructure in the first direction X is specifically determined by the number of arc-shaped light-emitting convex surfaces 211 on the first light-emitting surface 210. The more arc-shaped light-emitting convex surfaces 211 there are, the smaller the size of the first microstructure in the first direction X; conversely, the fewer arc-shaped light-emitting convex surfaces 211 there are, the larger the size of the first microstructure in the first direction X. This application embodiment does not limit the number of arc-shaped light-emitting convex surfaces 211 on the first light-emitting surface 210; the number can be selected according to actual needs.

[0097] In some embodiments, along the third direction Z, the size of the arc-shaped light-emitting convex surface 211 is m, and the size of the optical structure 200 is M, where 2≤M / m≤50. Within this ratio range, the number of arc-shaped light-emitting convex surfaces 211 divided from the first light-emitting surface 210 is appropriate, so that a suitable space can be reserved between two adjacent arc-shaped light-emitting convex surfaces 211 in the first direction X for setting the connecting surface 212. When M / m is greater than 50, the number of arc-shaped light-emitting convex surfaces 211 divided from the first light-emitting surface 210 is too large, resulting in the size of a single connecting surface 212 being too small in the first direction X, and the emission area of ​​large-angle light emitted from the first light-emitting surface 210 being insufficient. In addition, the first light-emitting surface 210 being divided into too many fragments also increases the difficulty of the process.

[0098] Based on the aforementioned lighting module 10, this application embodiment also provides a vehicle lamp, which includes the aforementioned lighting module 10. Exemplarily, this vehicle lamp is used in the high and low beam headlight assembly and daytime running light assembly of an automobile, wherein the lighting source 100 and the optical structure 200 constitute the high and low beam headlight assembly, and the accompanying lighting module 300 and the optical structure 200 constitute the daytime running light assembly. When the accompanying lighting module 300 is lit, the first light-emitting surface 210 of the optical structure 200 is illuminated, presenting a good lighting effect and preventing a visual emptiness caused by the first light-emitting surface 210 not being lit.

[0099] This application also provides an automobile including the aforementioned headlights. In an automobile equipped with such headlights, when the accompanying illumination module 300 is illuminated, the first light-emitting surface 210 of the illuminating optical structure 200 exhibits a good illumination effect, preventing a visual void caused by the first light-emitting surface 210 not being illuminated. Therefore, the accompanying illumination module 300 can be combined with the optical structure 200 used for diffused illumination source 100 so that when the accompanying illumination module 300 generates light, an external observer can observe that the first light-emitting surface 210 is illuminated.

[0100] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do 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. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0101] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A lighting module, characterized in that, The lighting module includes: An optical structure has a first light-incident surface and a first light-exit surface spaced apart in a first direction, and a reflective surface and a transition optical surface arranged opposite to each other in a second direction. The first direction and the second direction are perpendicular to each other. The transition optical surface includes a first transition region and a second transition region. The first transition region and the second direction have a first tilt angle, and the second transition region and the second direction have a second tilt angle. The first tilt angle and the second tilt angle are different. An illumination source is positioned facing the first light-incident surface. The light generated by the illumination source enters the optical structure from the first light-incident surface and is reflected by the reflecting surface and the transition optical surface before exiting from the first light-out surface. The accompanying lighting module is disposed toward the transition optical surface. Part of the light generated by the accompanying lighting module passes through the first transition area, is reflected on at least one side of the second direction inside the optical structure, and is emitted through the first light-emitting surface. Another part of the light generated by the accompanying lighting module passes through the second transition area and is emitted directly through the first light-emitting surface.

2. The lighting module according to claim 1, characterized in that, The second transition region is provided in one or more forms, wherein at least a portion of the second transition region is different from the second tilt angle formed by the second direction; or, one or more of the second transition regions are the same as the second tilt angle formed by the second direction. There is one or more first transition regions, and the first or more first transition regions have the same second tilt angle as the second direction.

3. The lighting module according to claim 1, characterized in that, There are more than one first transition region and one second transition region, and the first transition region and the second transition region are spaced apart along the second direction.

4. The lighting module according to claim 3, characterized in that, The transition optical surface further includes a third transition region, through which adjacent first and second transition regions are connected; or, The first transition region and the second transition region are connected sequentially along the second direction.

5. The lighting module according to claim 4, characterized in that, Both the first transition region and the second transition region are inclined toward the first light-emitting surface; When the transition optical surface further includes a third transition region, at least a portion of the accompanying lighting module is disposed on a third transition region of the plurality of third transition regions that is away from the first light-emitting surface.

6. The lighting module according to claim 4, characterized in that, When the transition optical surface further includes a third transition region, at least one of the second transition region and the third transition region has a textured surface.

7. The lighting module according to any one of claims 1-6, characterized in that, The first tilt angle is α1, and the second tilt angle is α2, where α2 < α1.

8. The lighting module according to claim 7, characterized in that, The accompanying lighting module has a second light-emitting surface facing the transition optical surface, and the second light-emitting surface is arranged parallel to the second direction; wherein: α2 satisfies: 0°≤α2≤30°.

9. The lighting module according to any one of claims 1-6, characterized in that, The second transition region is provided in multiple ways. Among the multiple second transition regions, the second transition region near the second direction edge of the transition optical surface has a first size along the second direction, and the second transition region away from the second direction edge of the transition optical surface has a first size along the second direction; wherein, the first size is greater than or equal to the second size.

10. The lighting module according to claim 9, characterized in that, The second transition region is provided in three parts, wherein two second transition regions are located on both sides of the second direction of the transition optical surface, and the other second transition region is located between the two second transition regions; Wherein: the dimensions of the two second transition regions along the second direction are S1, and the dimensions of the other second transition region along the second direction are S2, and S1 and S2 satisfy: 1mm≤S1≤3mm; 0.5mm≤S2≤1mm.

11. The lighting module according to any one of claims 1-6, characterized in that, The accompanying lighting module includes: Accompanied by the illumination of the light source; A light-diffusing element is disposed between the accompanying illuminated light source and the transition optical surface. The light-diffusing element is a Fresnel lens. The light-diffusing element has a second incident surface and a second exit surface opposite to each other along the first direction. The second incident surface faces the accompanying illuminated light source, and the second exit surface faces the transition optical surface, wherein: The second light-incident surface is provided with a Fresnel pattern, or / and the second light-exit surface is provided with a corn kernel pattern.

12. The lighting module according to claim 11, characterized in that, At least one of the second light-incident surface and the second light-exit surface is provided with a texture.

13. The lighting module according to any one of claims 1-6, characterized in that, The optical structure further comprises a first side surface and a second side surface, the first side surface extending in the first direction and disposed between the reflective surface and the first light-emitting surface, and the second side surface and the first side surface being disposed opposite each other along the second direction; wherein... After some of the light generated by the accompanying lighting module enters the optical structure, it passes through the transition optical surface and is projected onto the first side. After being reflected by the first side, some of the light is emitted from the first light-emitting surface, and the other part of the light is projected onto the second side and, after being reflected by the second side, is emitted from the first light-emitting surface.

14. The lighting module according to claim 13, characterized in that, The lighting module further includes a first cover plate and a second cover plate, which are respectively disposed on both sides of the optical structure in a second direction. The first cover plate covers at least a portion of the first side, and the second cover plate covers at least a portion of the second side. At least one of the first cover plate and the second cover plate has a textured surface on the side facing the optical structure.

15. The lighting module according to any one of claims 1-6, characterized in that, The first light-emitting surface includes a plurality of arc-shaped light-emitting convex surfaces and a plurality of connecting surfaces that are alternately connected along a third direction. The first direction, the second direction, and the third direction are mutually perpendicular to each other. Along a second horizontal direction parallel to the third direction, the distance between the plurality of arc-shaped light-emitting convex surfaces and the accompanying lighting light source of the accompanying lighting module gradually decreases in the first direction, and the plurality of arc-shaped light-emitting convex surfaces have a common focal position. The connecting surfaces are set at an angle to the third direction.

16. A vehicle light, characterized in that, The vehicle headlights include the lighting module as described in any one of claims 1-15.

17. The vehicle light according to claim 16, characterized in that, The lighting source and the optical structure are combined to form a high and low beam assembly, and the accompanying lighting module and the optical structure are combined to form a daytime lamp assembly.

18. A car, characterized in that, The vehicle includes a body and a headlight as described in claim 16 or 17, the headlight being mounted on the body.

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