Illumination module and vehicle lamp

Abstract

The utility model discloses an illumination module and a vehicle lamp. The illumination module comprises an illumination light source, a first optical structure and an accompanying lightening module, light rays generated by the illumination light source enter the first optical structure, then are sequentially reflected by the first reflecting surface and the second reflecting surface and are emitted from the light emitting surface, and the accompanying lightening module is arranged on one side of the illumination light source in the second direction and faces the second reflecting surface; the second reflecting surface is a semi-reflecting surface, and light generated along with the lightening module penetrates through the second reflecting surface, enters the first optical structure, is projected to the first side surface, is reflected by the first side surface and then is emitted from the light emitting surface. According to the lighting module, the light-emitting light path in the lighting module is designed, an external observer can observe that the light-emitting surface is lighted up from an overlook angle and a head-up angle, a good lighting effect is achieved, the light path of the lighting module is not interfered with when the lighting module is lighted up, and therefore when the lighting module is applied to the vehicle lamp, the lighting effect is good. The automobile lamp can give consideration to the effect that the lighting module is lightened along with the signal lamp module.

Description

Technical Field

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

[0002] With the development of automotive lighting technology and the diversification of headlight designs, higher demands are being placed on the performance of lighting modules. Currently, lighting modules primarily serve the function of nighttime illumination, focusing mainly on road lighting effects. However, the matching of the lighting module's internal illumination with the lighting effects of other traffic lights is not addressed. For example, when the traffic lights inside the headlight are illuminated, the lighting module remains off. The light-emitting surface of the lighting module cannot match the light-emitting area of ​​the traffic lights, making it impossible to achieve scenarios where the lighting module illuminates simultaneously with the traffic lights. This limits the flexibility of the overall headlight lighting effect. Utility Model Content

[0003] This application provides a lighting module and a vehicle light that can solve the problem that the vehicle light cannot simultaneously illuminate the lighting module and the signal light module in non-lighting mode.

[0004] In a first aspect, embodiments of this application provide a lighting module, the lighting module comprising:

[0005] Lighting source;

[0006] A first optical structure is spaced apart from the illumination source along a first direction. The first optical structure has a light-emitting surface facing away from the illumination source, and a first reflective surface and a second reflective surface arranged opposite each other along a second direction perpendicular to the first direction. Light generated by the illumination source enters the first optical structure and is reflected sequentially by the first and second reflective surfaces before exiting from the light-emitting surface. The first optical structure also has a first side surface located between the first reflective surface and the light-emitting surface along the first direction.

[0007] The accompanying lighting module is located on one side of the lighting source in the second direction and is positioned towards the second reflective surface. The second reflective surface is a semi-reflective surface. The light generated by the accompanying lighting module passes through the second reflective surface, enters the first optical structure, is projected onto the first side, and is emitted from the light-emitting surface after being reflected by the first side.

[0008] In some embodiments, the accompanying lighting module includes:

[0009] Accompanied by the illumination of the light source;

[0010] A light-diffusing element is disposed on the light-emitting side of the accompanying illuminated light source and is disposed facing the second reflective surface;

[0011] The light generated by the accompanying light source is homogenized by the light homogenizing element and then passes through the second reflective surface into the first optical structure.

[0012] In some embodiments, the accompanying illumination light source includes a plurality of first lamp beads spaced apart and at least one light-diffusing element, wherein the light generated by the plurality of first lamp beads is diffused by the same light-diffusing element and then projected onto the second reflective surface;

[0013] Along the direction perpendicular to the first direction, the distance between two adjacent first lamp beads is L1, and along the light emission direction of the accompanying lighting light source, the distance between the first lamp bead and the light-diffusing element is L2, where 1.0≤L2 / L1≤2.0.

[0014] In some embodiments, along a first horizontal direction from the accompanying lighting module toward the light-emitting surface, both the first reflective surface and the second reflective surface are inclined toward the side where the light-emitting surface is located, wherein the first horizontal direction is parallel to the first direction;

[0015] The light-diffusing element is a light-diffusing plate. The light-emitting direction of the accompanying light source is parallel to the normal direction of the light-diffusing plate. The angle between the light-emitting direction of the accompanying light source and the horizontal direction is α, where 0° < α < 90°.

[0016] In some embodiments, the 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;

[0017] 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.

[0018] The connecting surface is set at an angle to the third direction.

[0019] In some embodiments, the angle between the extending direction of the connecting surface and the first direction is β, where 0°≤β≤5°; and / or,

[0020] The arc-shaped light-emitting convex surface is a circular arc surface with a radius of curvature of R, where 40mm≤R≤50mm.

[0021] In some embodiments, the connecting surface has a plurality of first microstructures, and some of the light rays inside the first optical structure are emitted in the form of diffuse scattering after being deflected by the plurality of first microstructures.

[0022] In some embodiments, the first side has a plurality of first dimming units alternately connected along the first direction, each first dimming unit including a first dimming surface and a second dimming surface, the first dimming surface being inclined from the second dimming surface to the side where the light-emitting surface is located, and the second dimming surface being inclined from the first dimming surface to the side away from the light-emitting surface.

[0023] The light rays that enter the first optical structure through the second reflective surface are projected onto a plurality of the first dimming units, and after being reflected by the plurality of the first dimming units, are emitted from the light-emitting surface.

[0024] In some embodiments, at least one of the first dimming surface and the second dimming surface has a plurality of second microstructures to diffusely reflect light projected onto the first side surface and then onto the light-emitting surface; and / or,

[0025] The angle between the first dimming surface and the second direction is γ, where 45°≤γ≤80°; and / or,

[0026] The angle between the first dimming surface and the second dimming surface is δ, where 85°≤δ≤95°.

[0027] In some embodiments, at least a portion of the first reflective surface is an arcuate concave surface to expand the light entering the first optical structure before projecting it onto the second reflective surface; and / or,

[0028] At least a portion of the second reflective surface is an arc-shaped concave surface, so as to expand the light projected by the first reflective surface and project it onto the first side surface.

[0029] In some embodiments, the lighting module further includes a second optical structure, which is disposed between the first optical structure and the lighting source in the first direction, and the second optical structure is integrally formed with the first optical structure.

[0030] The light emitted by the illumination source is paralleled after passing through the second optical structure. The parallel light enters the first optical structure and is projected onto the first reflective surface and the second reflective surface in sequence.

[0031] Secondly, this application provides a vehicle light, which includes a signal light module and a lighting module as described above, wherein the accompanying illumination module is configured to generate light synchronously with the signal light module.

[0032] Based on the lighting module and vehicle headlights of this application embodiment, the lighting module further includes a simultaneous illumination module. This simultaneous illumination module can generate light synchronously with the lighting source, or it can generate light independently when the lighting source is not generating light. Thus, when other modules of the vehicle headlight generate light, the simultaneous illumination module can also generate light to illuminate the light-emitting surface of the lighting module, preventing a visually empty feeling caused by unlit light-emitting surfaces. Furthermore, this application designs the light-emitting path within the lighting module so that when the simultaneous illumination module generates light, external observers can observe the illuminated light-emitting surface from both top-down and eye-level angles, presenting a good lighting effect. The simultaneous illumination module does not interfere with the light path of the lighting module. Therefore, when the lighting module of this application is applied to vehicle headlights, the vehicle headlights can achieve the effect of the lighting module and the signal light module illuminating simultaneously. Attached Figure Description

[0033] 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.

[0034] Figure 1 This is a three-dimensional structural diagram of a lighting module according to an embodiment of this application;

[0035] Figure 2 This is a side view of a lighting module according to an embodiment of this application;

[0036] Figure 3 This is a schematic diagram of the light path of the light generated by the accompanying lighting module through the first optical structure according to an embodiment of this application;

[0037] Figure 4 This is a schematic diagram of the light path of light generated by a lighting source in one embodiment of this application passing through a first optical structure;

[0038] Figure 5 This is a top view of a lighting module according to an embodiment of this application;

[0039] Figure 6 This is a side view of a structure in which the light-emitting direction of the accompanying lighting module is set at an angle to the second reflective surface according to an embodiment of this application;

[0040] Figure 7 This is a schematic diagram of the light path emitted from the connecting surface along the second direction according to an embodiment of this application;

[0041] Figure 8This is a schematic diagram of the light path of light emitted from the arc-shaped convex surface along the second direction in one embodiment of this application;

[0042] Figure 9 This is a top view schematic diagram of the connection structure of a connecting surface and two adjacent arc-shaped light-emitting convex surfaces according to an embodiment of this application;

[0043] Figure 10 This is a side view of a structure in which the first and second sides of an embodiment of this application are arranged opposite to each other in a second direction;

[0044] Figure 11 This is a schematic diagram of the light path at the first side surface according to an embodiment of this application;

[0045] Figure 12 This is a three-dimensional structural diagram of a lighting source corresponding to the light incident surface according to an embodiment of this application;

[0046] Figure 13 This is a light pattern diagram of the light emitted by the accompanying lighting module according to an embodiment of this application.

[0047] Figure label:

[0048] 10. Lighting module;

[0049] 100. Light source; 110. Second LED chip; 120. Second circuit board;

[0050] 200, First optical structure; 210, Light-emitting surface; 211, Arc-shaped light-emitting convex surface; 212, Connecting surface; 2121, First edge; 2122, Second edge; 220, First side surface; 221, First dimming unit; 2211, First dimming surface; 2212, Second dimming surface; 230, Second side surface; 231, Second dimming unit; 2311, Third dimming surface; 2312, Fourth dimming surface; 240, First reflective surface; 250, Second reflective surface;

[0051] 300. Accompanying illumination module; 310. Accompanying illumination light source; 311. First LED bead; 320. Diffusion element; 330. First circuit board;

[0052] 400. Second optical structure; 410. Incident surface; 420. Reflecting bowl surface;

[0053] X, first direction; Y, second direction; Z, third direction; H, first horizontal direction; M, second horizontal direction. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0055] The inventors discovered that 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 inside the headlight with the lighting effects of other traffic lights. For example, when the traffic lights inside the headlight are lit, the lighting module is not lit, causing the light-emitting surface of the lighting module to fail to match the light-emitting area of ​​the traffic lights. This makes it impossible to achieve a scenario where the lighting module lights up simultaneously with the traffic lights. The fact that the light-emitting surface of the lighting module is not lit results in a dim area with a hollow appearance, limiting the flexibility of the overall headlight lighting effect.

[0056] Based on this, the present application provides a lighting module and a vehicle light, which can realize the optical implementation scheme of the lighting module lighting up along with the signal lights. Through a special optical path design in the lighting module, it can still provide a light emission effect with a brightness similar to that of the signal lights when the high and low beam lighting functions are not turned on, realize the function of lighting up together with the signal lights, and improve the signal lighting effect of the vehicle lights.

[0057] like Figure 1 The diagram shown is a three-dimensional structural schematic of a lighting module 10 according to an embodiment of this application. Figure 2 The diagram shown is a side view of a lighting module 10 according to an embodiment of this application. The lighting module 10 includes a lighting source 100 and a first optical structure 200.

[0058] The lighting module 10 has at least one of a low beam lighting mode and a high beam lighting mode. For example, the lighting module 10 has a low beam lighting mode, and the lighting source 100 is configured to generate light for illumination in the low beam lighting mode; or, the lighting module 10 has a high beam lighting mode, and the lighting source 100 is configured to generate light for illumination in the high beam lighting mode; or, the lighting module 10 has both a low beam lighting mode and a high beam lighting mode, and the lighting source 100 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.

[0059] The first optical structure 200 is disposed corresponding to the illumination source 100 to receive the light generated by the illumination source 100 and project the light onto the outside of the illumination module 10. Specifically, the first optical structure 200 is disposed at a distance from the illumination source 100 along the first direction X. The first optical structure 200 is a lens structure with thickness in the second direction Y. The first optical structure 200 has a light-emitting surface 210 facing away from the illumination source 100, and a first reflective surface 240 and a second reflective surface 250 disposed opposite to each other along the second direction Y. The second direction Y is perpendicular to the first direction X. After the light generated by the illumination source 100 enters the first optical structure 200, it is reflected sequentially by the first reflective surface 240 and the second reflective surface 250, and then emitted from the light-emitting surface 210.

[0060] When the lighting module 10 of this application embodiment is applied to a vehicle lamp, the vehicle lamp also includes other types of light-emitting modules, such as daytime light modules, turn signal modules, and other signal light modules. When the signal light modules are lit, the lighting module 10 has no light, which creates a visual emptiness and makes the overall shape of the vehicle lamp look uncoordinated and aesthetically unappealing when lit. Based on this, this application embodiment sets the lighting module 10 to also include an accompanying lighting module 300. The accompanying lighting module 300 is configured to generate light independently of the lighting source 100. That is, the accompanying lighting module 300 can generate light synchronously with the lighting source 100, or the accompanying lighting module 300 can generate light independently when the lighting source 100 is not generating light. In this way, when the signal light modules generate light, the accompanying lighting module 300 can generate light to illuminate the light-emitting surface 210 of the lighting module 10, preventing the visual emptiness caused by the light-emitting surface 210 not being lit.

[0061] It is understandable that the light generated by the accompanying lighting module 300 and the light generated by the lighting module 10 are emitted from the same light-emitting surface 210. The accompanying lighting module 300 and the lighting module 10 will share at least some optical elements. Therefore, when the accompanying lighting module 300 and the lighting source 100 are set separately, there is a great design challenge in how to integrate the optical elements of the accompanying lighting module 300 and the lighting module 10 so that the light generated by the accompanying lighting module 300 and the lighting module 10 are emitted from the same light-emitting surface 210.

[0062] like Figure 2As shown, in this embodiment, the accompanying lighting module 300 is positioned on one side of the lighting source 100 in the second direction Y and faces the second reflective surface 250. The second reflective surface 250 is a semi-reflective surface, meaning that it can both reflect light from inside the first optical structure 200 and allow external light to pass through, allowing light to enter the first optical structure 200. The first optical structure 200 also has a first side surface 220 located in the first direction X between the first reflective surface 240 and the light-emitting surface 210, as shown... Figure 3 The diagram shows the optical path of the light generated by the lighting module 300 in one embodiment of this application. The light generated by the lighting module 300 passes through the second reflective surface 250, enters the first optical structure 200, is projected onto the first side surface 220, and is reflected by the first side surface 220 before exiting from the light-emitting surface 210. Figure 4 The diagram shows the optical path of the light generated by the lighting module 10 in one embodiment of this application. After entering the first optical structure 200, the light generated by the lighting module 10 is reflected sequentially by the first reflecting surface 240 and the second reflecting surface 250, and then emitted from the light-emitting surface 210 in a divergent state. Figure 3 and Figure 4 As can be seen, the accompanying lighting module 300 and the lighting module 10 share a portion of the first optical structure 200 in this embodiment of the application, thereby enabling the light generated by the accompanying lighting module 300 and the light generated by the lighting module 10 to be emitted from the same light-emitting surface 210.

[0063] In this embodiment of the application, when the lighting module 10 is applied to vehicle lights, the first direction X can be horizontal, the second direction Y can be vertical, and the light generated by the lighting source 100 is emitted from the light-emitting surface 210 in a diffused state. Furthermore, as... Figure 4 As shown, in the second direction Y, the light emitted by the illumination source 100 covers the entire light-emitting surface 210. The light emitted by the illumination source 100 mainly serves an illumination function, allowing the vehicle driver to observe the external environment of the vehicle. The vehicle driver generally observes along the first horizontal direction H from the illumination source 100 toward the light-emitting surface 210. The first horizontal direction H is parallel to the first direction X. The light emitted by the illumination source 100 is divergent in the second direction Y, which can provide the vehicle driver with a wider field of view.

[0064] It is understandable that the light emitted from the lighting module 300 illuminates the light-emitting surface 210, mainly to provide a good visual effect for observers outside the vehicle. External observers generally observe the headlights from a top-down or eye-level perspective. Since the perspectives of external observers and vehicle drivers are different, the light emitted from the lighting source 100 and the light emitted from the lighting module 300 have different emission angles at the light-emitting surface 210.

[0065] like Figure 3 As shown, regarding the light generated by the accompanying lighting module 300, after passing sequentially through the second reflective surface 250 and the first side surface 220, in the second direction Y, most of the light is concentrated after at least one deflection and emitted from the region of the light-emitting surface 210 away from the first side surface 220, while another portion of the light is emitted from the middle region of the light-emitting surface 210 after at least one deflection (the at least one deflection includes the deflection of the light at the first side surface 220, and the deflection of the light entering the interior of the first optical structure 200 at other walls of the first optical structure 200). Thus, in the accompanying... When the lighting module 300 generates light, most of the light generated by the lighting module 300 is emitted from the area of ​​the light-emitting surface 210 away from the first side surface 220 at an upward angle. When an external observer observes from a top-down angle, the light-emitting surface 210 can be observed to be illuminated. At the same time, a portion of the light generated by the lighting module 300 is emitted from the middle area of ​​the light-emitting surface 210. When an external observer observes from a level angle, the light-emitting surface 210 can also be observed to be illuminated. Furthermore, when an external observer observes from a top-down angle, the illuminated effect of the light-emitting surface 210 is even brighter. It should be noted that the light deflection described in this embodiment includes at least one of refraction and reflection.

[0066] This application designs the light-emitting path inside the lighting module 10 so that when the lighting module 300 generates light, an external observer can see the light-emitting surface 210 being lit from both top-down and level-down angles, presenting a good lighting effect. Moreover, the 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.

[0067] The accompanying illumination module 300 includes an accompanying illumination light source 310, which is configured to generate light. It is understood that when light passes through the interface of different media, in addition to refraction, a certain degree of reflection also occurs at the interface. The light generated by the accompanying illumination light source 310 can be configured to diverge. After the light generated by the accompanying illumination light source 310 directly enters the first optical structure 200, it is deflected by the first side surface 220 and then diverges in multiple directions. Some of the light, after being deflected by the first side surface 220, is emitted directly from the area of ​​the light-emitting surface 210 away from the first side surface 220 and the middle area of ​​the light-emitting surface 210. Another portion of the light is deflected once or multiple times inside the first optical structure 200 before emitting from the area of ​​the light-emitting surface 210 away from the first side surface 220 and the middle area of ​​the light-emitting surface 210, thereby illuminating the area of ​​the light-emitting surface 210 away from the first side surface 220 and the middle area of ​​the light-emitting surface 210.

[0068] In some embodiments, the accompanying illumination light source 310 includes a plurality of first LED beads 311, and the number and arrangement of the first LED beads 311 can be selected based on the desired illumination effect of the light-emitting surface 210. For example, when the light generated by the first LED beads 311 directly enters the first optical structure 200, the illuminated area of ​​the light-emitting surface 210 can display the light and shadow of the first LED beads 311. By setting the arrangement of the plurality of first LED beads 311 to form a pattern, the area of ​​the light-emitting surface 210 illuminated by the plurality of first LED beads 311 can display a corresponding pattern.

[0069] When it is not necessary to present the light and shadow of the first LED 311 on the light-emitting surface 210, or when the light and shadow of the first LED 311 presented on the 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 lighting source 310 and the light-emitting surface 210.

[0070] In some embodiments, a light homogenization design is performed on the optical path between the accompanying lighting source 310 and the second reflective surface 250. Optionally, the accompanying lighting module 300 includes a plurality of first lamp beads 311 and at least one light homogenizing element 320. The light homogenizing element 320 is disposed on the light-emitting side of the accompanying lighting source 310 and faces the second reflective surface 250. Adjacent first lamp beads 311 are spaced apart. After the light generated by the accompanying lighting source 310 is homogenized by the light homogenizing element 320, it passes through the second reflective surface 250 and enters the first optical structure 200, blurring the light and shadow of the first lamp beads 311 on the light-emitting surface 210, so that the light-emitting surface 210 presents a sheet-like lighting effect.

[0071] In this embodiment, the number and arrangement of the plurality of first LED beads 311 are not limited, and can be selected according to the installation space and the degree to which the light-emitting surface 210 is illuminated. For example, the plurality of first 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 first LED beads 311 is diffused by the same light-diffusing element 320 and then projected onto the second reflective surface 250. 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 first 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 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 320 and the multiple first LED beads 311, the flexibility of the lit area at the light-emitting surface 210 can be improved.

[0072] Considering the need to meet the light output requirements of relatively wide horizontal and relatively narrow vertical in both the low-beam and high-beam lighting modes, the first optical structure 200 and the lighting source 100 occupy a relatively large space horizontally. In this embodiment, the accompanying lighting module 300 is set up in the vertical space of the lighting module 10. Here, the vertical direction is the second direction, the horizontal direction is the third direction Z, and the first direction X, the second direction Y, and the third direction Z are mutually perpendicular. The plane formed by the first direction and the third direction Z is a horizontal plane. Furthermore, at least some of the first LED beads 311 are spaced apart along the third direction Z. Multiple first LED beads 311 are arranged in the space of the third direction Z, allowing the accompanying lighting module 300 to illuminate more of the light-emitting surface 210, and preventing the accompanying lighting module 300 from occupying space in the second direction Y, thus avoiding an excessively large overall size of the lighting module 10.

[0073] For example, a plurality of first LED beads 311 are arranged in a straight line along the third direction Z. The lighting module 300 includes a light-diffusing element 320, which is configured to uniformly distribute the light emitted by all the first LED beads 311. For example, the plurality of first LED beads 311 form a plurality of light-emitting units arranged at intervals along the second direction Y. Each light-emitting unit includes at least one first LED bead 311, and when the number of first LED beads 311 in the light-emitting unit is multiple, the plurality of first LED beads 311 are arranged at intervals along the third direction Z.

[0074] In this embodiment, the lighting source 100 includes a plurality of second lamp beads 110, which are capable of generating light. At least some of the second lamp beads 110 are arranged at intervals along a third direction Z. Optionally, the plurality of first lamp beads 311 arranged along the third direction Z correspond one-to-one with the plurality of second lamp beads 110 arranged along the three directions. At the same time, the spacing between the light-diffusing element 320 and the first lamp beads 311 is selected so that the light and shadow of the plurality of first lamp beads 311 after being processed by the light-diffusing element 320 can be blurred and projected onto the light-emitting surface 210, presenting a uniform lighting effect. In this way, while meeting the requirement of illuminating a larger area of ​​the light-emitting surface 210, the number of first lamp beads 311 is reduced, saving energy. For example, when the lighting source 100 includes 7 second lamp beads 110, the 7 second lamp beads 110 are arranged in a straight line along the third direction Z. The accompanying lighting source 310 includes 7 first lamp beads 311, the 7 first lamp beads 311 are arranged in a straight line along the third direction Z. At the same time, the accompanying lighting module 300 includes a light-diffusing element 320, which performs light-diffusing processing on the light generated by the 7 first lamp beads 311.

[0075] In some other embodiments, the number of first LEDs 311 and the number of second LEDs 110 along the third direction Z can also be different. For example, the number of first LEDs 311 arranged in a straight line along the third direction Z is greater than the number of second LEDs 110. In this case, a lower power first LED can be selected. Alternatively, the number of first LEDs 311 arranged in a straight line along the third direction Z is less than the number of second LEDs 110. In this case, a higher power first LED can be selected to meet the brightness requirement of illuminating the light-emitting surface 210.

[0076] In some embodiments, the lighting module 10 further includes a second circuit board 120, on which a plurality of second lamp beads 110 are mounted, facilitating the centralized assembly of the plurality of second lamp beads 110.

[0077] It is understandable that the degree of blurring of the light and shadow projected by the first LED 311 onto the light-emitting surface 210 is related to the distance between two adjacent first LEDs 311 and the distance between the first LED 311 and the light-diffusing element 320. Specifically, when the distance between two adjacent first LEDs 311 is constant, the smaller the distance between the first LED 311 and the light-diffusing element 320, the less blurring of the light and shadow of the first LED 311 by the light-diffusing element 320, and the greater the light flux received by the light-diffusing element 320 from the first LED 311. Conversely, the larger the distance between the first LED 311 and the light-diffusing element 320, the greater the blurring of the light and shadow of the first LED 311 by the light-diffusing element 320, and the smaller the light flux received by the light-diffusing element 320 from the first LED 311.

[0078] In some embodiments, such as Figure 5 As shown, along the direction perpendicular to the first direction X, the spacing between two adjacent first LED beads 311 is L1, as follows: Figure 2 As shown, along the light emission direction of the accompanying light source 310, the distance between the first lamp bead 311 and the light-diffusing element 320 is L2, 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 of the above two ranges. Within the range of L2 / L1, the light flux of the first lamp bead 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 first lamp bead 311 can be taken into account, so that the light entering the first optical structure 200 is sufficient, thereby making the light-emitting surface 210 present a bright and blurred lighting effect.

[0079] Optionally, along a direction perpendicular to the first direction X, the spacing L1 between two adjacent first 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 first 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.

[0080] The lighting effect of the light-emitting surface 210 by the accompanying lighting module 300 is also related to the power of the accompanying lighting source 310. Optionally, the first LED bead 311 is a single-chip LED bead with a power of P1, where P1 satisfies: 1.0w ≤ P1 ≤ 2.0w. For example, P1 can be 1.0w, 1.2w, 1.5w, 1.8w, 2.0w, or any of the above ranges. Within the above power range, when the first LED bead 311 emits light, it can make the light-emitting surface 210 present a suitable lighting effect, and the power of the first LED bead 311 is also low, saving energy.

[0081] In some embodiments, the accompanying lighting module 300 also includes a first circuit board 330, on which a plurality of first lamp beads 311 are disposed, so as to allow for batch installation of the plurality of first lamp beads 311.

[0082] Please refer to the following: Figure 2 and Figure 3Along the first horizontal direction H of the accompanying lighting module 300 toward the light-emitting surface 210, the first reflective surface 240 and the second reflective surface 250 are both inclined toward the side where the light-emitting surface 210 is located. That is, the first reflective surface 240 and the second reflective surface 250 are both 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 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 second reflective surface 250 into the interior of the first optical structure 200, and then be projected onto the first side surface 220 at a suitable angle, and then onto the light-emitting surface 210 at a suitable angle, and finally be emitted from the light-emitting surface 210 at an upward angle, thereby just meeting the viewing angle requirements of the external observer when observing the 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 first optical structure 200 originally used to conduct light from the lighting source 100 to smoothly conduct light generated by the accompanying lighting module 300. This allows the 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 to transmit light from the accompanying lighting module 300. The structure is simple and occupies little space.

[0083] In this embodiment, the type of light-diffusing element 320 is not limited; any element that has a light-diffusing effect is applicable to this application. For example, the light-diffusing element 320 is a light-diffusing plate.

[0084] In some embodiments, the light-diffusing plate is plate-shaped and has a normal S1 perpendicular to its surface. The light-emitting direction of the accompanying light source 310 is parallel to the normal direction of the light-diffusing plate, and the angle between the light-emitting direction of the accompanying light source 310 and the horizontal direction is α, that is, the angle between the light-emitting direction of the accompanying light source 310 and the first direction X is α. α satisfies: 0° < α < 90°. For example, α can be 5°, 10°, 25°, 45°, 60°, 75°, 80°, or any range thereof. By selecting α within the above range, the light generated by the accompanying light source 310 can be smoothly projected onto the second reflective surface 250, and then smoothly enter the interior of the first optical structure 200. The light emitted by the first LED bead 311 accompanying the lighting source 310 is divergent, and the light emission direction of the lighting source 310 is the optical axis direction of the first LED bead 311. Alternatively, for ease of installation, the light emission direction of the lighting source 310 can be chosen to be perpendicular to the surface of the first circuit board 330.

[0085] Optionally, such as Figure 6As shown, the angle between the light emission direction of the accompanying light source 310 and the second reflective surface 250 is α1, where α1 satisfies: 0° < α1 ≤ 90°, allowing the light generated by the accompanying light source 310 to enter the interior of the first optical structure 200 from the second reflective surface 250. When a portion of the second reflective surface 250 is non-curved, a first tangent exists at the intersection of the light emission direction of the accompanying light source 310 (parallel to the normal S1 of the light diffuser) and the second reflective surface 250. The angle α1 is then chosen as the angle between the first tangent and the light emission direction of the accompanying light source 310. When α1 is 90°, the light emission direction of the accompanying light source 310 is perpendicular to the second reflective surface 250; when α1 is less than 90°, the light emission direction of the accompanying light source 310 forms an acute angle with the second reflective surface 250, and the accompanying light source 310 is positioned closer to the illumination source 100, thereby reducing the space occupied by the illumination module 10 in the second direction Y.

[0086] In some embodiments, in the second direction Y, the portion of the light-diffusing element 320 adjacent to the second reflective surface 250 is spaced apart from or attached to the first optical structure 200, as long as the light-diffusing element 320 does not obstruct the light generated by the illumination source 100. In the second direction Y, the portion of the light-diffusing element 320 away from the second reflective surface 250 may extend beyond the first optical structure 200, so that the light-diffusing element 320 has a larger size and can receive more light generated by the lighting source 310, thereby improving light utilization. Of course, in some other embodiments, in the second direction Y, the portion of the light-diffusing element 320 away from the illumination source 100 may not extend beyond the first optical structure 200, so as to reduce the size of the illumination module 10 in the second direction Y and make the structure more compact.

[0087] The first optical structure 200 has a first side and a second side disposed opposite each other in the third direction Z. In some embodiments, when the lighting module 10 is applied to a vehicle lamp, the third direction Z is parallel to the horizontal direction, such as... Figure 7 As shown, taking the direction from the first side to the second side as the second horizontal direction M, along the second horizontal direction M parallel to the third direction Z, the distance between the light-emitting surface 210 and the lighting source 100 in the first direction X tends to decrease, so that the lighting module 10 can be applied to the styling requirements of vehicle lights. Similarly, along the second horizontal direction M, the distance between the light-emitting surface 210 and the accompanying lighting source 310 in the first direction X 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 first 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 light-emitting surface 210, and can be emitted from the area of ​​the light-emitting surface 210 away from the first side surface 220 and the middle area of ​​the light-emitting surface 210.

[0088] Considering that under the effect of homogenization, although some light rays can be emitted from the light-emitting surface 210 in a divergent state, the divergence angle is limited, making it difficult to meet the requirements for large-angle viewing. For example, when the light-emitting surface 210 is a smooth arc-shaped surface, an external observer located on the side of the first optical structure 200 away from the illumination source 100 in the first direction X can observe the light-emitting surface 210 being illuminated from a top-down or level perspective. However, when the external observer is on the second side of the first optical structure 200, relying solely on the effect of homogenization, the emission angle of the light rays emitted from the light-emitting surface 210 is small, and the degree to which the external observer can observe the light-emitting surface 210 being illuminated is relatively weak, or even not at all. Based on this, the embodiments of this application further design the 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 light-emitting surface 210 being illuminated from more positions.

[0089] In some embodiments, such as Figure 7 As shown, the 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 second horizontal direction M, 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. Furthermore, the plurality of arc-shaped light-emitting convex surfaces 211 share a common focal point. This arrangement, on the one hand, allows for… Figure 7 As shown, when viewed along the second direction Y, the light-emitting surface 210 is approximately arc-shaped, which facilitates the application of the lighting module 10 to the vehicle's styling requirements. 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.

[0090] Since the light-emitting surface 210 is divided into multiple arc-shaped light-emitting convex surfaces 211, and the distance between the multiple arc-shaped light-emitting convex surfaces 211 and the accompanying lighting light source 310 gradually decreases along the second horizontal direction M, so that two adjacent arc-shaped light-emitting convex surfaces 211 can be spaced apart in the first direction X, the light-emitting surface 210 is subjected to Fresnel processing in this embodiment. The space between two 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 light-emitting surface 210 being lit from more positions.

[0091] In some embodiments, the light-emitting surface 210 includes a plurality of connecting surfaces 212, and two adjacent arc-shaped light-emitting convex surfaces 211 are connected by a connecting surface 212. That is, the light-emitting surface 210 includes a plurality of arc-shaped light-emitting convex surfaces 211 and a plurality of connecting surfaces 212 alternately connected along the third direction Z. When viewed in the second direction Y, the light-emitting surface 210 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 at random angles at the light-emitting surface 210 after being homogenized, a portion of the light is emitted from the plurality of arc-shaped light-emitting convex surfaces 211, and another portion is emitted from the plurality of connecting surfaces 212. Figure 7 The direction indicated by the dashed arrow is a schematic diagram of light rays emanating from multiple connecting surfaces 212 according to an embodiment of this application. Figure 8 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 first optical structure 200 can also observe that the 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. The embodiments of this application do not limit the shape of the connecting surface 212; any shape in which at least a portion of the connecting surface 212 forms an angle with the first direction X so that the light from the accompanying lighting module 300 can be emitted at a larger angle is applicable to this application.

[0093] The 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 β, where β satisfies: 0° ≤ β ≤ 5°. For example, β can be 0°, 1°, 2°, 2°, 5°, or any range of the above. Figure 9 The diagram shows a structural schematic of an embodiment of this application where the angle β 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 first optical structure 200 can exit at a large angle from the connecting surface 212. 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 light-emitting surface 210 has a suitable area for emitting light generated by the illumination source 100.

[0094] 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 light-emitting surface 210 can be observed to be illuminated in a sheet-like manner from multiple angles.

[0095] 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, 444mm, 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 first 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 first 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. By selecting the radius of curvature R of the arc-shaped light-emitting convex surface 211 within the above-mentioned range, this application facilitates that the emitted light has appropriate brightness and diffusion angle to illuminate the external environment in both high beam and low beam lighting modes, and that the light-emitting surface 210 can present appropriate brightness when light is generated by the lighting module 300.

[0096] 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. Light is deflected at least once at each of the first microstructures before being emitted, causing some of the light rays inside the first optical structure 200 to be diffusely scattered after being deflected by the multiple first microstructures. This further blurs the shadow of the accompanying lighting source 310, resulting in a uniformly illuminated effect at the connecting surface 212. This application does not limit the type of first microstructure; any first microstructure capable of uniformly illuminating light is applicable to this application.

[0097] The first microstructure is concave, or the second microstructure is convex. In 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.

[0098] 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 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 light-emitting surface 210; the number can be selected according to actual needs.

[0099] 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 first 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 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 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 light-emitting surface 210 being insufficient. In addition, the light-emitting surface 210 being divided into too many fragments also increases the difficulty of the process.

[0100] In this embodiment, in addition to homogenizing the light generated by the accompanying light source 310 between the first optical structure 200 and the accompanying light source 310 at the light-emitting surface 210, homogenizing can also be performed inside the first optical structure 200.

[0101] In some embodiments, the surface shape of the first side surface 220 can be designed so that the light generated by the accompanying light source 310 is also uniformly processed at the first side surface 220, thereby further enhancing the lighting effect of the light source 310 and making the light-emitting surface 210 more uniformly illuminated.

[0102] Optionally, such as Figure 10As shown, the first side surface 220 has a plurality of first dimming units 221 alternately connected along the first direction X. Each first dimming unit 221 includes a first dimming surface 2211 and a second dimming surface 2212. The first dimming surface 2211 is inclined from the second dimming surface 2212 toward the side where the light-emitting surface 210 is located, and the second dimming surface 2212 is inclined from the first dimming surface 2211 toward the side away from the light-emitting surface 210. That is, the plurality of first dimming units 221 are spliced ​​to form a light guide tooth structure. Light entering the first optical structure 200 through the second reflective surface 250 is projected onto the plurality of first dimming units 221 and reflected by the plurality of first dimming units 221 before being emitted from the light-emitting surface 210. The light reaching the first dimming unit 221 is refracted or reflected at least once by at least one of the first dimming surface 2211 and the second dimming surface 2212 before entering the interior of the first optical structure 200, or is emitted from the light-emitting surface 210.

[0103] like Figure 11 The diagram shows the light path at one of the first dimming units 221. Light from the second reflective surface 250 is deflected once after passing through the second dimming surface 2212 and enters the area between the first dimming surface 2211 and the second dimming surface 2212. It then undergoes a second deflection after passing through the first dimming surface 2211 and re-enters the interior of the first optical structure 200, exiting from the light-emitting surface 210. In this embodiment, the light-emitting direction of the accompanying light source 310 is tilted relative to the first side surface 220. Furthermore, after the light generated by the accompanying light source 310 is homogenized by the light-diffusing element 320, the light passing through the light-diffusing element 320 is also projected onto the first side surface 220 at an angle. This allows the light processed by the multiple first dimming units 221 of the first side surface 220 to exit at an angle from the area of ​​the light-emitting surface 210 away from the first side surface 220 and from the middle area of ​​the light-emitting surface 210.

[0104] In addition to being refracted at the first dimming surface 2211 and the second dimming surface 2212, the light projected onto the first side 220 is also reflected at the interface between two different media. That is, some of the light is reflected at the first dimming surface 2211 and the second dimming surface 2212. As a result, after the light generated by the lighting source 310 is processed by the multiple first dimming units 221 of the first side 220, most of the light is refracted at the first dimming surface 2211 and the second dimming surface 2212 and then emitted from the light-emitting surface 210. The other part of the light continues to be refracted or reflected at least once and then emitted from the light-emitting surface 210. In this way, the multiple first dimming units 221 of the first side 220 can play a uniform light effect, so that the light-emitting surface 210 is illuminated more evenly.

[0105] The first dimming surface 2211 and the second dimming surface 2212 adjust the angle at which the light generated by the accompanying light source 310 exits from the light-emitting surface 210. In this embodiment, the angles of the first dimming surface 2211 and the second dimming surface 2212 are designed so that the light generated by the accompanying light source 310 is deflected at an appropriate angle by the first dimming surface 2211 and the second dimming surface 2212 at the first side surface 220, and exits from the light-emitting surface 210 at an appropriate angle, thereby allowing an external observer to observe the light-emitting surface 210 being illuminated from both a top-down and level-down perspective. In some embodiments, such as... Figure 11 As shown, the angle between the first dimming surface 2211 and the second direction Y is γ, 45°≤γ≤80°. For example, γ can be 45°, 50°, 55°, 60°, 65°, 80°, or any range of the above. Within the above tilt angle range, the first dimming surface 2211 can receive more light passing through the second dimming surface 2212 and deflect the light before projecting it onto the light-emitting surface 210 at a suitable angle.

[0106] In some embodiments, such as Figure 11 As shown, the angle between the first dimming surface 2211 and the second dimming surface 2212 is δ, where 85°≤δ≤90°. For example, δ can be 85°, 88°, 90°, 93°, 95°, or any range thereof. Within this angle range, the tilt angles of the second dimming surface 2212 and the first dimming surface 2211 are properly matched, allowing the second dimming surface 2212 to have a suitable tilt angle, thus receiving more light passing through the second reflective surface 250. At the same time, the relative tilt angles of the second dimming surface 2212 and the first dimming surface 2211 are appropriate, ensuring that the light, after passing through the second dimming surface 2212, is received by the first dimming surface 2211 at a suitable angle. Consequently, after refraction through the first dimming surface 2211, the light is projected onto the light-emitting surface 210 at a suitable angle.

[0107] In some embodiments, at least one of the first dimming surface 2211 and the second dimming surface 2212 has a plurality of second microstructures to diffusely reflect light projected onto the first side surface 220 and then onto the light-emitting surface 210, so that the light generated by the lighting source 310 is subjected to a second light-averaging process at the first side surface 220, further blurring the light and shadow of the lighting source 310. This application does not limit the type of the second microstructure; any microstructure in the art that has a light-averaging effect can be used as a second microstructure in this application.

[0108] It should be noted that the light generated by the accompanying lighting source 310 in the embodiments of the present application is subjected to at least one light homogenization process. In addition to being used to blur the light and shadow of the accompanying lighting source 310 so that the light-emitting surface 210 presents a more uniform lighting effect, it is also used to adjust the light to propagate in more directions. Furthermore, when the light passes through the connecting surface 212 and the arc-shaped light-emitting convex surface 211 of the light-emitting surface 210, it can be emitted at more angles, so that an external observer can observe the lighting of the light-emitting surface 210 from more positions.

[0109] Both the first light-adjusting surface 2211 and the second light-adjusting surface 2212 are inclined. Therefore, in the second direction Y, the first light-adjusting surface 2211 and the second light-adjusting surface 2212 will occupy a certain space. Optionally, the first light-adjusting unit 221 is recessed into the first optical structure 200, that is, the connecting angle of the first light-adjusting surface 2211 and the second light-adjusting surface 2212 of the first light-adjusting unit 221 faces the inside of the first optical structure 200. In this way, while using the first light-adjusting unit 221 to change the propagation direction of the light generated by the accompanying lighting source 310, the volume of the first optical structure 200 is also reduced, thereby saving materials and costs. However, it should be noted that since the first light-adjusting unit 221 is recessed into the first optical structure 200, the height a1 of the first light-adjusting unit 221 along the second direction Y needs to be controlled. Optionally, 0 mm < a1 ≤ 3 mm can be set to avoid the first light-adjusting unit 221 affecting the main light passing through the inside of the first optical structure 200 (for example, the parallel or inclined main light generated by the lighting source 100 in the high-beam lighting mode and the low-beam lighting mode).

[0110] Another option is that the first light-adjusting unit 221 can also protrude in the direction away from the first optical structure 200, that is, the connecting angle of the first light-adjusting surface 2211 and the second light-adjusting surface 2212 of the first light-adjusting unit 221 protrudes in the direction away from the first optical structure 200. In this way, the first light-adjusting unit 221 can be prevented from affecting the main light passing through the inside of the first optical structure 200, but at the same time, the volume of the first optical structure 200 will be correspondingly increased.

[0111] As described above, in this embodiment, the light generated by the light source 310 is redirected at the first side surface 220 by multiple first dimming units 221. Most of the light is emitted from the light-emitting surface 210, while a portion is reflected by the first dimming surface 2211 and the second dimming surface 2212 into the interior of the first optical structure 200, where it is deflected at other walls of the first optical structure 200. In the second direction Y, the first optical structure 200 has a second side surface 230 opposite to the first side surface 220. The light reflected by the first dimming surface 2211 and the second dimming surface 2212 is projected onto the second side surface 230, the second reflecting surface 250, and other walls. Since the second side 230 and the first side 220 are arranged opposite each other in the second direction Y, the second side 230 will receive more light reflected from the first dimming surface 2211 and the second dimming surface 2212. The surface shape of the second side 230 can be designed so that the second side 230 and the first side 220 cooperate to adjust the propagation direction of the light generated by the lighting source 100 and the accompanying lighting source 310.

[0112] In some embodiments, the second side surface 230 is a plane perpendicular to the second direction Y, and the second side surface 230 is a reflective surface, which directly reflects the projected light.

[0113] In some embodiments, the second side 230 includes a plurality of second dimming units 231, which are alternately connected along a first direction X. Each first dimming unit 221 includes a third dimming surface 2311 and a fourth dimming surface 2312. The third dimming surface 2311 is inclined from the fourth dimming surface 2312 toward the side where the light-emitting surface 210 is located, and the fourth dimming surface 2312 is inclined from the third dimming surface 2311 toward the side away from the light-emitting surface 210. Both the third dimming surface 2311 and the fourth dimming surface 2312 can receive light. Similarly, light passing through the third dimming surface 2311... The light enters between the third dimming surface 2311 and the fourth dimming surface 2312 and then passes through the fourth dimming surface 2312 into the interior of the first optical structure 200. Alternatively, the light passing through the fourth dimming surface 2312 enters between the third dimming surface 2311 and the fourth dimming surface 2312 and then passes through the third dimming surface 2311 into the interior of the first optical structure 200. In this way, the light undergoes multiple refractions and reflections between the first side surface 220 and the second side surface 230. Part of the light is dissipated inside the first optical structure 200, while the other part of the light achieves a uniform light effect and can be emitted from the light-emitting surface 210.

[0114] In this embodiment, the light emitted from the first side 220, generated by the accompanying lighting module 300, allows an external observer to see the illuminated surface 210 illuminated from a level or downward angle. Simultaneously, since the light emitted by the lighting source 100 is divergent in both high beam and low beam modes, some of the light entering the first optical structure 200 is refracted and reflected by the wall of the first optical structure 200, forming stray light. By coordinating the first side 220 and the second side 230—for example, by providing multiple first dimming units 221 on the first side 220 and multiple second dimming units 231 on the second side 230—the multiple first dimming units 221 and multiple second dimming units 231 can not only adjust the light emitted by the accompanying lighting source 310 but also dissipate the stray light in both high beam and low beam modes through multiple refractions and reflections between the first side 220 and the second side 230, thus improving the light emission effect in both modes.

[0115] When adjusting the light in high beam and low beam illumination modes, the first optical structure 200 is used to adjust the light to be emitted from the light-emitting surface 210 in a divergent manner. The divergence includes the light being emitted in a divergent manner in the second direction Y and in the third direction Z. In this embodiment, the surface design of the first reflective surface 240 and the second reflective surface 250 is designed to ensure that the light generated by the illumination source 100 is emitted from the light-emitting surface 210 in a divergent manner.

[0116] In some embodiments, at least a portion of the first reflective surface 240 is an arcuate concave surface to expand the light entering the first optical structure 200 before projecting it onto the second reflective surface 250. Optionally, the entire first reflective surface 240 is an arcuate concave surface. Optionally, the first reflective surface 240 includes a plurality of first micro-arc concave surfaces, which are arranged side by side along a first direction X.

[0117] In some embodiments, at least a portion of the second reflective surface 250 is an arcuate concave surface to expand the light projected by the first reflective surface 240 before it is projected onto the first side surface 220. Optionally, the entire second reflective surface 250 is an arcuate concave surface. Optionally, the second reflective surface 250 includes a plurality of second micro-arc concave surfaces, which are arranged side by side along a first direction X.

[0118] In this embodiment, the radius of curvature of the concave portions of the first reflecting surface 240 and the second reflecting surface 250 can be designed so that the light emitted from the light-emitting surface 210 is divergent in both the second direction Y and the third direction Z. This embodiment does not limit the surface shape of the first reflecting surface 240 and the second reflecting surface 250; any surface shape that can be used in the art to adjust the divergent light emitted from the light-emitting surface 210 by the lighting source 100 is applicable to this application. It should be noted that, since the light emitted by the accompanying lighting source 310 is homogenized by the light-diffusing element 320, the light passing through the light-diffusing element 320 is projected onto the second reflecting surface 250 in a relatively chaotic direction. Therefore, even if the light is deflected by the second reflecting surface 250 when passing through it, the light-emitting surface 210 can still present a continuous sheet-like effect of being illuminated by the accompanying lighting source 310.

[0119] Please refer to the following: Figure 1 The lighting module 10 also includes a second optical structure 400. In the first direction X, the second optical structure 400 is disposed between the first optical structure 200 and the lighting source 100. The second optical structure 400 receives the light emitted by the lighting source 100 and deflects the light before projecting it onto the first optical structure 200. That is, the second optical structure 400 and the first optical structure 200 work together to adjust the light emitted by the lighting source 100 to meet the light output requirements of both high beam and low beam lighting modes. In some embodiments, the light emitted by the lighting source 100 forms parallel light after passing through the second optical structure 400. The parallel light enters the first optical structure 200 and is sequentially projected onto the first reflective surface 240 and the second reflective surface 250. Optionally, as... Figure 12 As shown, the first optical structure 200 includes an incident light surface 410 and a reflective cup surface 420. The incident light surface 410 is disposed facing the illumination source 100 and has a concave arc surface. The light generated by the illumination source 100 passes through the incident light surface 410, is focused and projected onto the reflective cup surface 420, is reflected by the reflective cup surface 420 and then projected onto the first reflective surface 240. After being reflected by the first reflective surface 240, it is sequentially projected onto the second reflective surface 250 and the first side surface 220 and then emitted from the light-emitting surface 210 in a divergent manner.

[0120] In some embodiments, the second optical structure 400 is integrally formed with the first optical structure 200 so that the second optical structure 400 and the first optical structure 200 are integrally formed. Optionally, the illumination source 100 includes a plurality of second lamp beads 110 arranged side by side along the third direction Z. The second optical structure 400 may include a plurality of light-incident surfaces 410 and a plurality of reflective bowls 420 arranged one-to-one with the plurality of second lamp beads 110. The light reflected by the plurality of reflective bowls 420 is projected onto the first reflective surface 240.

[0121] In some embodiments, the first optical structure 200 and the second optical structure 400 are lens structures capable of transmitting light; or, the first optical structure 200 is a lens structure capable of transmitting light, and the second optical structure 400 is a reflector capable of reflecting light.

[0122] In this application embodiment, the surface shape of the light-incident surface 410 and the reflective bowl surface 420 is not limited. Any light-incident surface 410 and reflective bowl surface 420 that can meet the dimming requirements of high beam lighting mode and low beam lighting mode in the art is applicable to this application.

[0123] The materials of the first optical structure 200 and the second optical structure 400 in this application embodiment are not limited. Any material in the art that can meet the dimming requirements of this application can be used in the first optical structure 200 and the second optical structure 400.

[0124] This application embodiment also provides a vehicle lamp that can be applied to a vehicle and can be used as at least one of the lighting fixtures with lighting functions such as the front lamp and the rear lamp of the vehicle. The vehicle lamp includes a signal light module and a lighting module 10 as described above. The first direction X is the front-rear direction of the vehicle. When the vehicle lamp is used as the front lamp of the vehicle, the first horizontal direction H is the direction towards the front of the vehicle. When the vehicle lamp is used as the rear lamp of the vehicle, the first horizontal direction H is the direction towards the rear of the vehicle.

[0125] like Figure 13 The image shown is a light pattern diagram of the light emitted from the accompanying lighting module 300 of a vehicle headlight using a lighting module 10 according to an embodiment of this application. Figure 13 As can be seen, this light pattern has a large angle in both the horizontal and vertical directions, and the light can be seen from all angles, which can effectively supplement the traffic light regulations.

[0126] In some embodiments, the lighting module 10 and the signal light module are arranged side by side, and the accompanying lighting module 300 is configured to generate light synchronously with the signal light module. The signal light module can be a daytime running light module, a turn signal module, etc. When the signal light module is lit, the lighting source 100 can be controlled to generate light to illuminate the light-emitting surface 210. When the lighting source 100 does not generate light, the accompanying lighting module 300 can be controlled to generate light to illuminate the light-emitting surface 210, preventing a visually empty feeling caused by the light-emitting surface 210 not being lit.

[0127] 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.

[0128] 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, include: Lighting source; A first optical structure is spaced apart from the illumination source along a first direction. The first optical structure has a light-emitting surface facing away from the illumination source, and a first reflective surface and a second reflective surface arranged opposite each other along a second direction perpendicular to the first direction. Light generated by the illumination source enters the first optical structure and is reflected sequentially by the first and second reflective surfaces before exiting from the light-emitting surface. The first optical structure also has a first side surface located between the first reflective surface and the light-emitting surface along the first direction. The accompanying lighting module is located on one side of the lighting source in the second direction and is positioned towards the second reflective surface. The second reflective surface is a semi-reflective surface. The light generated by the accompanying lighting module passes through the second reflective surface, enters the first optical structure, is projected onto the first side, and is emitted from the light-emitting surface after being reflected by the first side.

2. The lighting module according to claim 1, characterized in that, The accompanying lighting module includes: Accompanied by the illumination of the light source; A light-diffusing element is disposed on the light-emitting side of the accompanying illuminated light source and is disposed facing the second reflective surface; The light generated by the accompanying light source is homogenized by the light homogenizing element and then passes through the second reflective surface into the first optical structure.

3. The lighting module according to claim 2, characterized in that, The accompanying lighting light source includes a plurality of first lamp beads spaced apart and at least one light-diffusing element. The light generated by the plurality of first lamp beads is diffused by the same light-diffusing element and then projected onto the second reflective surface. Along the direction perpendicular to the first direction, the distance between two adjacent first lamp beads is L1, and along the light emission direction of the accompanying lighting light source, the distance between the first lamp bead and the light-diffusing element is L2, where 1.0≤L2 / L1≤2.

0.

4. The lighting module according to claim 2, characterized in that, Along the first horizontal direction of the accompanying lighting module toward the light-emitting surface, both the first reflective surface and the second reflective surface are inclined toward the side where the light-emitting surface is located, wherein the first horizontal direction is parallel to the first direction; The light-diffusing element is a light-diffusing plate. The light-emitting direction of the accompanying light source is parallel to the normal direction of the light-diffusing plate. The angle between the light-emitting direction of the accompanying light source and the horizontal direction is α, where 0° < α < 90°.

5. The lighting module according to claim 2, characterized in that, The 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, wherein 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 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 surface is set at an angle to the third direction.

6. The lighting module according to claim 5, characterized in that, The angle between the extending direction of the connecting surface and the first direction is β, where 0°≤β≤5°; and / or, The arc-shaped light-emitting convex surface is a circular arc surface with a radius of curvature of R, where 40mm≤R≤50mm.

7. The lighting module according to claim 5, characterized in that, The connecting surface has multiple first microstructures, and some of the light rays inside the first optical structure are emitted in the form of diffuse scattering after being deflected by the multiple first microstructures.

8. The lighting module according to claim 1, characterized in that, The first side has a plurality of first dimming units alternately connected along the first direction. Each first dimming unit includes a first dimming surface and a second dimming surface. The first dimming surface is inclined from the second dimming surface to the side where the light-emitting surface is located, and the second dimming surface is inclined from the first dimming surface to the side away from the light-emitting surface. The light rays that enter the first optical structure through the second reflective surface are projected onto a plurality of the first dimming units, and after being reflected by the plurality of the first dimming units, are emitted from the light-emitting surface.

9. The lighting module according to claim 8, characterized in that, At least one of the first dimming surface and the second dimming surface has a plurality of second microstructures to diffusely reflect light projected onto the first side surface before projecting it onto the light-emitting surface; and / or, The angle between the first dimming surface and the second direction is γ, where 45°≤γ≤80°; and / or, The angle between the first dimming surface and the second dimming surface is δ, where 85°≤δ≤95°.

10. The lighting module according to claim 1, characterized in that, At least a portion of the first reflective surface is concave to broaden the light entering the first optical structure before projecting it onto the second reflective surface; and / or, At least a portion of the second reflective surface is an arc-shaped concave surface, so as to expand the light projected by the first reflective surface and project it onto the first side surface.

11. The lighting module according to claim 1, characterized in that, The lighting module further includes a second optical structure. In the first direction, the second optical structure is disposed between the first optical structure and the lighting source, and the second optical structure is integrally formed with the first optical structure. The light emitted by the illumination source is deflected by the second optical structure and then projected onto the first reflective surface and the second reflective surface in sequence.

12. A vehicle light, characterized in that, include: Traffic light module; and The lighting module according to any one of claims 1-11, wherein the accompanying lighting module is configured to generate light synchronously with the signal light module.

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