Illumination module and vehicle lamp

Abstract

The invention 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] The present application relates to the technical field of vehicle lamps, and particularly to an illumination module and a vehicle lamp. Background Art

[0002] With the development of vehicle lamp illumination technology and the diversification of vehicle lamp shapes, higher requirements are put forward for the performance of the illumination module. Currently, the illumination module mainly plays the role of night illumination, and the performance mainly focuses on the road surface illumination effect. There is no consideration for the matching of the illumination effect between the illumination module inside the vehicle lamp and other signal lamps. For example, when the signal lamp inside the vehicle lamp is lit, the illumination module is not lit, and the light-emitting surface of the illumination module cannot form an effect match with the light-emitting area of the signal lamp, and the scenario where the illumination module is lit simultaneously with the signal lamp cannot be achieved, which limits the flexibility of the overall lamp lighting effect. Summary of the Invention

[0003] The embodiments of the present application provide an illumination module and a vehicle lamp, which can solve the problem that the vehicle lamp fails to take into account the simultaneous lighting of the illumination module along with the signal lamp module in the non-illumination mode.

[0004] In a first aspect, the embodiments of the present application provide an illumination module, which includes:

[0005] An illumination light source;

[0006] A first optical structure, spaced from the illumination light source along a first direction, the first optical structure having a light-emitting surface facing away from the illumination light source, and having a first reflecting surface and a second reflecting surface oppositely arranged along a second direction, the second direction being perpendicular to the first direction. The light generated by the illumination light source enters the first optical structure and is sequentially reflected by the first reflecting surface and the second reflecting surface, and then exits from the light-emitting surface; the first optical structure further has a first side surface located between the first reflecting surface and the light-emitting surface in the first direction; and

[0007] An accompanying lighting module, arranged on one side of the illumination light source in the second direction and facing the second reflecting surface. The second reflecting surface is a semi-reflecting surface. The light generated by the accompanying lighting module passes through the second reflecting surface and enters the first optical structure and is projected onto the first side surface, and then exits from the light-emitting surface after being reflected by the first side surface.

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

[0009] An accompanying lighting light source;

[0010] A light homogenizing element, arranged on the light-emitting side of the accompanying lighting light source and facing the second reflecting surface;

[0011] Among them, the light generated by the accompanying lighting source is homogenized by the light homogenizing element and then passes through the second reflecting surface and enters the first optical structure.

[0012] In some embodiments, the accompanying lighting source includes a plurality of first lamp beads arranged at intervals and at least one light homogenizing element. The light generated by the plurality of first lamp beads is homogenized by the same light homogenizing element and then projected onto the second reflecting surface;

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

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

[0015] The light homogenizing element is a light homogenizing plate. The light-emitting direction of the accompanying lighting source is parallel to the normal direction of the light homogenizing plate, and the angle between the light-emitting direction of the accompanying lighting source and the horizontal direction is α, 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 the third direction. The first direction, the second direction, and the third direction are perpendicular to each other in pairs;

[0017] Along the second horizontal direction parallel to the third direction, the distances between the plurality of arc-shaped light-emitting convex surfaces and the accompanying lighting source gradually decrease in the first direction, and the plurality of arc-shaped light-emitting convex surfaces have a common focal position;

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

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

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

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

[0022] In some embodiments, the first side surface has a plurality of first dimming units connected alternately along the first direction. Each of the first dimming units includes a first dimming surface and a second dimming surface. The first dimming surface is inclined from the second dimming surface toward the side where the light-emitting surface is located, and the second dimming surface is inclined from the first dimming surface toward the side away from the light-emitting surface.

[0023] The light rays entering the first optical structure through the second reflecting surface are projected onto the plurality of first dimming units and are reflected by the plurality of first dimming units and then 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 project the light rays projected onto the first side surface onto the light-emitting surface after diffuse reflection; and / or,

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

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

[0027] In some embodiments, at least a part of the first reflecting surface is in an arc-shaped concave surface to expand the light rays entering the first optical structure and then project them onto the second reflecting surface; and / or,

[0028] At least a part of the second reflecting surface is in an arc-shaped concave surface to expand the light rays projected by the first reflecting surface and then project them onto the first side surface.

[0029] In some embodiments, 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 light source, and the second optical structure is integrally provided with the first optical structure;

[0030] The light rays emitted by the lighting light source form parallel light rays after passing through the second optical structure. The parallel light rays enter the first optical structure and are sequentially projected onto the first reflecting surface and the second reflecting surface.

[0031] In a second aspect, the present application provides a vehicle lamp. The vehicle lamp includes a signal lamp module and the lighting module as described above. The accompanying lighting module is configured to generate light rays synchronously with the signal lamp module.

[0032] Based on the lighting module and vehicle headlamp according to the embodiments of the present application, by providing that the lighting module further includes an accompanying lighting module, the accompanying lighting module can generate light synchronously with the lighting light source, or the accompanying lighting module can also generate light independently when the lighting light source does not generate light. Thus, when other modules of the vehicle headlamp generate light, the accompanying lighting module can generate light accordingly to light up the light-emitting surface of the lighting module, preventing a visual sense of void caused by the unlit light-emitting surface. Moreover, the present application designs the light-emitting optical path inside the lighting module. When the accompanying lighting module generates light, external observers can observe that the light-emitting surface is lit from both top-down and horizontal perspectives, presenting a good lighting effect, and the accompanying lighting module does not interfere with the optical path of the lighting module. Therefore, when the lighting module of the present application is applied to a vehicle headlamp, the vehicle headlamp can take into account the effect of the lighting module being lit simultaneously with the signal lamp module. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0034] Figure 1 Schematic three-dimensional structure diagram of a lighting module according to an embodiment of the present application;

[0035] Figure 2 Schematic side view structure diagram of a lighting module according to an embodiment of the present application;

[0036] Figure 3 Schematic diagram of the optical path of the light generated by the accompanying lighting module passing through the first optical structure according to an embodiment of the present application;

[0037] Figure 4 Schematic diagram of the optical path of the light generated by the lighting light source passing through the first optical structure according to an embodiment of the present application;

[0038] Figure 5 Schematic top view structure diagram of a lighting module according to an embodiment of the present application;

[0039] Figure 6 Schematic side view structure diagram of the light-emitting direction of the accompanying lighting module being set at an angle with the second reflecting surface according to an embodiment of the present application;

[0040] Figure 7 Schematic diagram of the optical path of the light emitted from the connection surface when observed along the second direction according to an embodiment of the present application;

[0041] Figure 8Schematic diagram of the optical path of light emitted from the arc-shaped light-emitting convex surface along the second direction in an embodiment of the present application;

[0042] Figure 9 Top view structural schematic diagram of the connection surface connecting with two adjacent arc-shaped light-emitting convex surfaces in an embodiment of the present application;

[0043] Figure 10 Side view structural schematic diagram of the first side and the second side arranged opposite to each other in the second direction in an embodiment of the present application;

[0044] Figure 11 Schematic diagram of the optical path of light at the first side in an embodiment of the present application;

[0045] Figure 12 Three-dimensional structural schematic diagram of the illumination light source corresponding to the light incident surface in an embodiment of the present application;

[0046] Figure 13 Light pattern diagram of the light emitted from the accompanying lighting module in an embodiment of the present application.

[0047] Reference numerals:

[0048] 10. Lighting module;

[0049] 100. Lighting light source; 110. Second lamp bead; 120. Second circuit board;

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

[0051] 300. Accompanying lighting module; 310. Accompanying lighting light source; 311. First lamp bead; 320. Light homogenizing element; 330. First circuit board;

[0052] 400. Second optical structure; 410. Light 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 manners

[0054] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0055] The inventor found that the current lighting module mainly functions for night lighting, and mainly focuses on the road lighting effect in terms of performance. There is no consideration for the matching of the lighting effect between the lighting module inside the vehicle lamp and other signal lights. For example, when the signal lights inside the vehicle lamp are lit, the lighting module is not lit, resulting in the inability to form a matching effect between the light-emitting surface of the lighting module and the light-emitting area of the signal lights, and the inability to achieve the scenario where the lighting module is lit simultaneously with the signal lights. The unlit light-emitting surface of the lighting module causes this area to be dim and have a sense of holes, restricting the flexibility of the styling of the overall lamp lighting effect.

[0056] Based on this, the embodiments of the present application provide a lighting module and a vehicle lamp, which can realize an optical implementation solution for the function of the lighting module to be lit along with the signal lights. Through a special optical path design in the lighting module, it is possible to provide a light-emitting effect with an approximate brightness to that of the signal lights even when the high and low beam lighting functions are not turned on, realizing the function of being lit together with the signal lights and improving the signal lighting effect of the vehicle lamp.

[0057] As Figure 1 shown, it is a three-dimensional structural schematic diagram of a lighting module 10 according to an embodiment of the present application. As Figure 2 shown, it is a side view structural schematic diagram of a lighting module 10 according to an embodiment of the present application. The lighting module 10 includes a lighting light 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 light source 100 is configured to generate light for lighting in the low beam lighting mode; or, the lighting module 10 has a high beam lighting mode, and the lighting light source 100 is configured to generate light for lighting in the high beam lighting mode; or, the lighting module 10 has a low beam lighting mode and a high beam lighting mode, and the lighting light source 100 is configured to be able to switch its light-emitting state to generate light in the corresponding low beam lighting mode and high beam lighting mode. Among them, when the lighting module 10 is applied to a vehicle lamp, the low beam lighting mode is mainly used for road lighting in urban areas, intersections and when two vehicles meet, and the high beam lighting mode is mainly used for road lighting on highways, in suburbs and under poor lighting conditions.

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

[0060] When the lighting module 10 of the embodiment of the present application is applied to a vehicle lamp, the vehicle lamp also includes other types of light-emitting modules. For example, the vehicle lamp also includes a daytime running light module, a turn signal light module, and other signal light modules. When the signal light module is illuminated, the appearance of the lighting module 10 is dark, which creates a visual sense of emptiness, making the overall shape of the vehicle lamp inconsistent and the illuminated appearance unsightly. Based on this, the embodiment of the present application sets the lighting module 10 to also include a companion lighting module 300. The companion lighting module 300 is configured to generate light independently of the lighting light source 100. That is, the companion lighting module 300 can generate light synchronously with the lighting light source 100, or the companion lighting module 300 can also generate light independently when the lighting light source 100 is not generating light. In this way, when the signal light module generates light, the companion lighting module 300 can also generate light to illuminate the light-emitting surface 210 of the lighting module 10, thereby preventing the light-emitting surface 210 from being unlit and causing a visual sense of emptiness.

[0061] It can be understood that the light generated by the companion lighting module 300 and the light generated by the lighting module 10 are emitted from the same light-emitting surface 210, and the companion lighting module 300 and the lighting module 10 will share at least some optical elements. Therefore, when the companion lighting module 300 and the lighting light source 100 are set separately, how to integrate the optical elements of the companion lighting module 300 and the lighting module 10 so that the light generated by both the companion lighting module 300 and the lighting module 10 are emitted from the same light-emitting surface 210 poses a great design difficulty.

[0062] like Figure 2As shown in the figure, in the embodiment of the present application, the accompanying lighting module 300 is arranged on one side of the lighting light source 100 in the second direction Y and faces the second reflecting surface 250. The second reflecting surface 250 is a semi-reflecting surface, that is, the second reflecting surface 250 can both reflect the light inside the first optical structure 200, and the second reflecting surface 250 can also allow external light to pass through so that the light enters the first optical structure 200. The first optical structure 200 also has a first side surface 220 located between the first reflecting surface 240 and the light-emitting surface 210 in the first direction X, as Figure 3 As shown in the figure, it is a schematic diagram of the light path direction of the light generated by the accompanying lighting module 300 in an embodiment of the present application. The light generated by the accompanying lighting module 300 passes through the second reflecting surface 250 and enters the first optical structure 200 and is projected onto the first side surface 220, and after being reflected by the first side surface 220, it is emitted from the light-emitting surface 210, as Figure 4 As shown in the figure, it is a schematic diagram of the light path direction of the light generated by the lighting module 10 in an embodiment of the present application. After the light generated by the lighting module 10 enters the first optical structure 200, it is reflected by the first reflecting surface 240 and the second reflecting surface 250 in sequence and then is emitted from the light-emitting surface 210 in a divergent state. From the figure Figure 3 and Figure 4 It can be seen that the accompanying lighting module 300 of the embodiment of the present application shares a part of the first optical structure 200 with the lighting module 10, so as to realize 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.

[0063] In the embodiment of the present application, when the lighting module 10 is applied to a vehicle headlight, the first direction X can be the horizontal direction, the second direction Y can be the vertical direction, and the light generated by the lighting light source 100 is emitted from the light-emitting surface 210 in a diffused state. And, as Figure 4 shown in the figure, in the second direction Y, the light generated by the lighting light source 100 fills the entire light-emitting surface 210. The light generated by the lighting light source 100 mainly plays a lighting role for the vehicle driver to observe the external environment of the vehicle. The vehicle driver generally observes along the first horizontal direction H of the lighting light source 100 towards the light-emitting surface 210. The first horizontal direction H is parallel to the first direction X. The light generated by the lighting light source 100 is in a divergent state in the second direction Y, which can provide a wider observation field of view for the vehicle driver.

[0064] It can be understood that the light generated by the accompanying lighting module 300 lights up the light-emitting surface 210, which is mainly used to provide a good visual effect for the observers outside the vehicle. The external observers generally observe the vehicle headlight from a top-down or horizontal perspective. The viewing angles of the external observers and the vehicle driver are different. Correspondingly, the light-emitting angles of the light generated by the lighting light source 100 and the light generated by the accompanying lighting module 300 at the light-emitting surface 210 are different.

[0065] like Figure 3 As shown, regarding the light generated by the accompanying lighting module 300, after passing through the second reflecting surface 250 and the first side surface 220 in sequence, in the second direction Y, most of the light is concentrated on the area away from the first side surface 220 from the light-emitting surface 210 after being deflected at least once, and the other part of the light is emitted from the middle area of the light-emitting surface 210 after being deflected at least once (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 first optical structure 200 at other wall surfaces of the first optical structure 200). In this way, 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, it can be observed that the light-emitting surface 210 is illuminated. At the same time, part 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, it can also be observed that the light-emitting surface 210 is illuminated. Moreover, when an external observer observes from a top-down angle, it can be observed that the light-emitting surface 210 is illuminated more brightly. It should be noted that the deflection of light described in the embodiments of the present application includes at least one of refraction and reflection of light.

[0066] The present application designs the light-emitting optical path inside the lighting module 10. When the accompanying lighting module 300 generates light, an external observer can observe that the light-emitting surface 210 is illuminated from both a top-down and a horizontal perspective, presenting a good lighting effect. The accompanying lighting module 300 will not interfere with the light path of the lighting module 10. Therefore, when the lighting module 10 of the present application is applied to a vehicle lamp, the vehicle lamp can take into account the effect of the lighting module 10 and the signal light module being illuminated at the same time.

[0067] The accompanying lighting module 300 includes an accompanying lighting light source 310, which is configured to generate light. It is understandable that when light passes through the interface of different media, in addition to being refracted, a certain degree of reflection will also occur at the interface. The light generated by the accompanying lighting light source 310 can be set to be in a divergent state. After the light generated by the accompanying lighting 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. Part of the light is deflected by the first side surface 220 and directly 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. Another part of the light will be deflected once or multiple times inside the first optical structure 200 and then 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, 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 lighting source 310 includes a plurality of first lamp beads 311, and the number and arrangement of the first lamp beads 311 can be selected based on the lighting effect required for the light-emitting surface 210. For example, when the light generated by the first lamp beads 311 directly enters the first optical structure 200, the illuminated area of the light-emitting surface 210 can present the light and shadow of the first lamp beads 311. By setting the arrangement of the plurality of first lamp beads 311 to be arranged in a pattern, correspondingly, the areas of the plurality of first lamp beads 311 illuminating the light-emitting surface 210 can present corresponding patterns.

[0069] When it is not necessary to present the light and shadow of the first lamp beads 311 on the light-emitting surface 210, or when the light and shadow of the first lamp beads 311 presented on the light-emitting surface 210 are relatively blurred, a light homogenization design can be performed at at least one place on the optical path between the accompanying lighting source 310 and the light-emitting surface 210.

[0070] In some embodiments, a light homogenization design is selected to be performed once on the optical path between the accompanying lighting source 310 and the second reflecting 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 arranged on the light-emitting side of the accompanying lighting source 310 and is arranged towards the second reflecting surface 250. Among them, two adjacent first lamp beads 311 are arranged at intervals. The light generated by the accompanying lighting source 310 is homogenized by the light homogenizing element 320 and then passes through the second reflecting 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 and making the light-emitting surface 210 present a sheet-like lighting effect.

[0071] In the embodiments of the present application, the number and arrangement of the plurality of first lamp beads 311 are not limited, and can be specifically selected according to the installation space and the degree of illumination of the light-emitting surface 210. Exemplarily, the plurality of first lamp beads 311 are arranged in a line, or the plurality of first lamp beads 311 are arranged in a matrix, or the plurality of first lamp beads 311 are arranged in a ring shape. Among them, the light generated by the plurality of first lamp beads 311 is homogenized by the same light homogenizing element 320 and then projected onto the second reflecting surface 250. When the accompanying lighting module 300 includes a plurality of light homogenizing elements 320, each light homogenizing element 320 correspondingly performs light homogenization processing on the light generated by the plurality of first lamp beads 311. Two adjacent light homogenizing elements 320 are arranged at intervals in the first direction X to form an effect of multiple areas being illuminated on the light-emitting surface 210, or the plurality of light homogenizing elements 320 can also be partially overlapped in the first direction X and spliced to form a larger light homogenization area, so as to form an effect of a larger area being illuminated at the light-emitting surface. By cooperating the plurality of light homogenizing elements 320 with the plurality of first lamp beads 311, it is convenient to improve the flexibility of the illuminated area at the light-emitting surface 210.

[0072] Considering that the light output requirements need to be relatively wide horizontally and relatively narrow vertically in the incident light illumination mode and the high beam illumination mode, correspondingly, the first optical structure 200 and the illumination light source 100 occupy more space horizontally. In the embodiment of the present application, the accompanying lighting module 300 is arranged by using the longitudinal space of the lighting module 10, wherein the longitudinal direction is the second direction, the transverse direction is the third direction Z, the first direction X, the second direction Y and the third direction Z are perpendicular to each other in pairs, and the plane formed by the first direction and the third direction Z is the horizontal plane. Further, at least some of the first lamp beads 311 are arranged at intervals along the third direction Z, and a plurality of first lamp beads 311 are arranged in the space of the third direction Z, so that the accompanying lighting module 300 can light up the light output surface 210 more, and prevent the accompanying lighting module 300 from occupying space in the second direction Y and causing the overall volume of the lighting module 10 to be too large.

[0073] Exemplarily, a plurality of first lamp beads 311 are arranged in a straight line along the third direction Z. The accompanying lighting module 300 includes a light homogenizing element 320, and the light homogenizing element 320 is arranged corresponding to all the first lamp beads 311 to perform light homogenizing processing on the light generated by all the first lamp beads 311. Exemplarily, a plurality of first lamp 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 lamp bead 311, and when the number of the first lamp beads 311 in the light emitting unit is multiple, the multiple first lamp beads 311 are arranged at intervals along the third direction Z.

[0074] In the embodiment of the present application, the illumination light source 100 includes a plurality of second lamp beads 110, and the second lamp beads 110 can generate light. Among them, at least some of the second lamp beads 110 are arranged at intervals along the third direction Z. Optionally, the plurality of first lamp beads 311 arranged along the third direction Z and the plurality of second lamp beads 110 arranged along the third direction are in one-to-one correspondence, and at the same time, the distance between the light homogenizing element 320 and the first lamp beads 311 is selected, so that the light projected onto the light output surface 210 by the plurality of first lamp beads 311 after being homogenized by the light homogenizing element 320 can be blurred, presenting a uniform lighting effect. In this way, on the basis of being able to satisfy the lighting of a larger range of the light output surface 210, the number of the first lamp beads 311 is reduced, and energy is saved. Exemplarily, when the illumination light 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 is provided with 7 first lamp beads 311, the 7 first lamp beads 311 are arranged in a straight line along the third direction Z, and at the same time, the accompanying lighting module 300 is provided with a light homogenizing element 320, and the light homogenizing element 320 performs light homogenizing processing on the light generated by the 7 first lamp beads 311.

[0075] In some other embodiments, along the third direction Z, the number of the first lamp beads 311 and the number of the second lamp beads 110 may also be different. For example, along the third direction Z, the number of the first lamp beads 311 arranged in a straight line is greater than the number of the second lamp beads 110. At this time, the first lamp beads 311 with a smaller power can be selected; or, along the third direction Z, the number of the first lamp beads 311 arranged in a straight line is less than the number of the second lamp beads 110. At this time, the first lamp beads 311 with a larger power can be selected to meet the brightness requirement for the illuminated light-emitting surface 210.

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

[0077] It can be understood that the degree of blurring of the light and shadow projected by the first lamp bead 311 onto the light-emitting surface 210 is related to the distance between two adjacent first lamp beads 311 and the distance between the first lamp bead 311 and the light homogenizing element 320. Among them, when the distance between two adjacent first lamp beads 311 is fixed, the smaller the distance between the first lamp bead 311 and the light homogenizing element 320, the smaller the degree of blurring of the light and shadow of the first lamp bead 311 by the light homogenizing element 320, and the greater the light flux of the first lamp bead 311 received by the light homogenizing element 320. On the contrary, the larger the distance between the first lamp bead 311 and the light homogenizing element 320, the greater the degree of blurring of the light and shadow of the first lamp bead 311 by the light homogenizing element 320, and the smaller the light flux of the first lamp bead 311 received by the light homogenizing element 320.

[0078] In some embodiments, as Figure 5 shown, along the direction perpendicular to the first direction X, the distance between two adjacent first lamp beads 311 is L1. As Figure 2 shown, along the light-emitting direction of the illuminating light source 310, the distance between the first lamp bead 311 and the light homogenizing element 320 is L2, and 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 between the two. Within the above range of L2 / L1, the light flux of the first lamp bead 311 received by the light homogenizing element 320 and the light homogenizing effect of the light homogenizing 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, and further the illuminated light-emitting surface 210 presents an illuminated effect with sufficient brightness and blurred lamp shadow.

[0079] Optionally, along a direction perpendicular to the first direction X, the spacing L1 between two adjacent first light beads 311 satisfies: 10 mm ≤ L1 ≤ 15 mm. For example, L1 can be 10 mm, 11 mm, 13 mm, 14 mm, 15 mm, or any range between the above two values. Within the above spacing range, it is possible to prevent multiple first light beads 311 from occupying too much space, and at the same time, it is convenient to select a suitable position for the light homogenizing element 320, with a compact structure, preventing the lighting module 300 from occupying too much space in the first direction X.

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

[0081] In some embodiments, the lighting module 300 further includes a first circuit board 330, and a plurality of first light beads 311 are all arranged on the first circuit board 330 for batch installation of the plurality of first light beads 311.

[0082] Please refer to again Figure 2 and Figure 3Along the first horizontal direction H from the companion lighting module 300 toward the light emitting surface 210, the first reflecting surface 240 and the second reflecting surface 250 are both inclined toward the side where the light emitting surface 210 is located. That is, the first reflecting surface 240 and the second reflecting surface 250 are both inclined toward the side away from the companion lighting module 300. On the one hand, this is used to meet the light output requirement of the illumination light source 100 and reflect the light generated by the illumination light source 100 toward the light emitting surface 210, thereby shortening the optical path of the light generated by the illumination light source 100 propagating in the first direction X. On the other hand, this allows the light generated by the companion lighting module 300 to smoothly pass through the second reflecting surface 250 and enter the interior of the first optical structure 200. After being projected onto the first side surface 220 at a suitable angle, it is then projected onto the light emitting surface 210 at a suitable angle and finally emitted from the light emitting surface 210 at an upward angle, thereby just meeting the viewing angle requirement of an external observer observing the light emitting surface 210. The companion lighting module 300 of the present application utilizes the space on one side of the lighting source 100, as well as the first optical structure 200 originally used to transmit the light of the lighting source 100, to smoothly transmit the light generated by the companion lighting module 300, so that the light-emitting surface 210 can be illuminated by both the lighting source 100 and the companion lighting module 300. There is no need to separately design an optical structure for transmitting the light of the companion lighting module 300. The structure is simple and takes up little space.

[0083] In the embodiment of the present application, there is no limitation on the type of the light homogenizing element 320 , and any element that has a light homogenizing effect on light is applicable to the present application.

[0084] In some embodiments, the diffuser is plate-shaped and has a normal S1 perpendicular to its plate surface. The light emitting direction of the accompanying light source 310 is parallel to the normal direction of the diffuser. 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, and 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. Among them, the light emitted by the first lamp bead 311 accompanying the lighting light source 310 is divergent, and the light emitting direction of the lighting light source 310 is the optical axis direction of the first lamp bead 311. Alternatively, for ease of installation, the light emitting direction of the lighting light source 310 can also be selected to be perpendicular to the surface of the first circuit board 330.

[0085] Alternatively, as Figure 6As shown, the included angle between the light-emitting direction of the accompanying lighting source 310 and the second reflecting surface 250 is α1, and α1 satisfies: 0° < α1 ≤ 90°, so that the light generated by the accompanying lighting source 310 can enter the interior of the first optical structure 200 from the second reflecting surface 250. Among them, when a part of the second reflecting surface 250 is non-curved, there is a first tangent at the intersection of the light-emitting direction of the accompanying lighting source 310 (parallel to the normal S1 of the light homogenizing plate) and the second reflecting surface 250, and the included angle between the first tangent and the light-emitting direction of the accompanying lighting source 310 is selected as the included angle α1. When α1 is 90°, the light-emitting direction of the accompanying lighting source 310 is perpendicular to the second reflecting surface 250; when α1 is less than 90°, the light-emitting direction of the accompanying lighting source 310 forms an acute angle with the second reflecting surface 250, and the accompanying lighting source 310 is in a position closer to the illumination light source 100, thereby reducing the space occupied by the lighting module 10 in the second direction Y.

[0086] In some embodiments, in the second direction Y, the part of the light homogenizing element 320 adjacent to the second reflecting surface 250 is arranged at an interval or in contact with the first optical structure 200, as long as the light homogenizing element 320 does not interfere with the light generated by the illumination light source 100. In the second direction Y, the part of the light homogenizing element 320 away from the second reflecting surface 250 can extend out of the first optical structure 200, so that the light homogenizing element 320 has a larger size, can receive more light generated by the accompanying lighting source 310, and improves the light utilization rate. Of course, in some other embodiments, in the second direction Y, the part of the light homogenizing element 320 away from the illumination light source 100 may not extend out of the first optical structure 200, so as to reduce the size of the lighting module 10 in the second direction Y and make the structure compact.

[0087] The first optical structure 200 has a first side and a second side arranged opposite to each other in the third direction Z. In some embodiments, when the lighting module 10 is applied to a vehicle headlight, 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 illumination light source 100 in the first direction X shows a decreasing trend, so as to meet the styling requirements of the lighting module 10 for vehicle headlights. 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 shows a decreasing trend. Due to the light homogenizing effect of the light homogenizing element 320, the light passing through the light homogenizing 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 light averaging, although some light 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 of wide-angle viewing angles. For example, when the light emitting surface 210 is a smooth arc-shaped surface, an external observer on the side of the first optical structure 200 away from the illumination light 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 light averaging effect, the emission angle of the light emitted from the light emitting surface 210 is small, and the degree of illumination of the light emitting surface 210 that the external observer can observe is relatively weak, or even the light emitting surface 210 cannot be observed to be illuminated. Based on this, the embodiment of the present application further designs the light emitting surface 210 so that the light generated by the illuminated light source 310 can be emitted at a large angle in the third direction Z, so that the external observer can observe the light emitting surface 210 being illuminated from more positions.

[0089] In some embodiments, as Figure 7 As shown, the light emitting surface 210 includes a plurality of arc-shaped light emitting convex surfaces 211 sequentially arranged along the third direction Z, and two adjacent arc-shaped light emitting convex surfaces 211 are spaced apart in the first direction X. Along the second horizontal direction M, the spacing between the plurality of arc-shaped light emitting convex surfaces 211 in the first direction X and the accompanying light source 310 gradually decreases, and the plurality of arc-shaped light emitting convex surfaces 211 have a common focal position. In this arrangement, on the one hand, as shown in FIG. Figure 7 As shown, when observed along the second direction Y, the light-emitting surface 210 is approximately arc-shaped as a whole, which facilitates the application of the lighting module 10 to the styling requirements of the vehicle. On the other hand, multiple arc-shaped light-emitting convex surfaces 211 are spliced together for the light generated by the lighting light source 100 to emit, which can meet the light emission requirements of the lighting module 10 in the high beam lighting mode and the low beam lighting mode.

[0090] Since the light-emitting surface 210 is divided into a plurality of arc-shaped light-emitting convex surfaces 211, and along the second horizontal direction M, the spacing between the plurality of arc-shaped light-emitting convex surfaces 211 in the first direction X and the accompanying lighting light source 310 gradually decreases, so that two adjacent arc-shaped light-emitting convex surfaces 211 can be spaced apart in the first direction X. In the embodiment of the present application, the light-emitting surface 210 is Fresnel-treated, and the space between the two adjacent arc-shaped light-emitting convex surfaces 211 in the first direction X is used to emit at least part of the light of 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. Two adjacent arc-shaped light-emitting convex surfaces 211 are connected by one 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 that are alternately connected along the third direction Z. When observed in the second direction Y, the light-emitting surface 210 as a whole presents an approximate arc shape. Among them, the connecting surface 212 is arranged at an angle with the third direction Z. When the light generated by the lit light source 310 is emitted from the light-emitting surface 210 at a chaotic angle after the light homogenization effect, a part of the light is emitted from the plurality of arc-shaped light-emitting convex surfaces 211, and another part of the light is emitted from the plurality of connecting surfaces 212. Figure 7 The direction indicated by the dashed arrow in the figure is a schematic diagram of the light emitted from the plurality of connecting surfaces 212 in an embodiment of the present application. Figure 8 The direction indicated by the dashed arrow in the figure is a schematic diagram of the light emitted from two arc-shaped light-emitting convex surfaces 211 located at the edge in an embodiment of the present application. When observed along the second direction Y, the light can be emitted from the connecting surface 212 at a large angle with respect 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 a flat surface, or the connecting surface 212 can also be a convex arc-shaped curved surface. Regarding the surface type of the connecting surface 212, the embodiments of the present application do not limit this. As long as at least part of the connecting surface 212 forms an angle with the first direction X so that the light accompanying the lighting module 300 can be emitted at a large angle, the surface type is applicable to the present application.

[0093] Among them, the connecting surface 212 has an extending direction. The extending direction of the connecting surface 212 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 lighting module 300 in the first direction X, and the second edge 2122 of the connecting surface is the edge away from the 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, and β satisfies: 0° ≤ β ≤ 5°. For example, β can be 0°, 1°, 2°, 2°, 5° or any range between the two, such as Figure 9 As shown, it is a schematic diagram of the structure where the angle β between the extending direction of the connecting surface 212 and the first direction X is 0° in an embodiment of the present application. In the above angle range, the light inside the first optical structure 200 can be emitted from the connecting surface 212 at a large angle. At the same time, the connecting surface 212 occupies less space in the third direction Z, preventing the space of the connecting surface 212 in the third direction Z from being too large and occupying the area of the arc-shaped light-emitting convex surface 211, reducing the interference of the presence of the connecting surface 212 on the emitted light in the high-beam illumination mode and the low-beam illumination mode, and enabling the light-emitting surface 210 to have a suitable area for the light emitted by the illumination light source 100 to be emitted.

[0094] To meet the light-emitting requirements in the high-beam illumination mode and the low-beam illumination mode, the arc-shaped light-emitting convex surface 211 has a diverging effect on the light emitted outward by the illumination light source 100. At the same time, the arc-shaped light-emitting convex surface 211 also has a diverging effect on the light emitted outward by the accompanying lighting module 300. On the basis that the light generated by the accompanying lighting module 300 is subjected to light homogenization processing, when observed along the second direction Y, part of the light of the accompanying lighting module 300 is also emitted in a diverging shape from the arc-shaped light-emitting convex surface 211. The arc-shaped light-emitting convex surface 211 cooperates with the connecting surface 212 to emit light. When the accompanying lighting light source 310 generates light, the light-emitting surface 210 can be observed to be illuminated in a sheet shape from multiple angles.

[0095] In some embodiments, the arc-shaped light-emitting convex surface 211 is a circular arc surface, and the radius of curvature is R, where 40 mm ≤ R ≤ 50 mm. For example, R can be 40 mm, 444 mm, 45 mm, 48 mm, 50 mm, or any range between the two. Among them, the larger the radius of curvature of the arc-shaped light-emitting convex surface 211, the flatter the arc of the arc-shaped light-emitting convex surface 211 along the first direction X, and the smaller the degree of deflection of the light emitted from the inside of the first optical structure 200 by the arc-shaped light-emitting convex surface 211. The smaller the radius of curvature of the arc-shaped light-emitting convex surface 211, the steeper the arc of the arc-shaped light-emitting convex surface 211 along the first direction X, and the greater the degree of deflection of the light emitted from the inside of the first optical structure 200 by the arc-shaped light-emitting convex surface 211. Moreover, the greater the degree of deflection, the larger the external observation angle obtained, but the smaller the presented light effect. On the contrary, the smaller the degree of deflection, the smaller the external observation angle obtained, but the larger the presented light effect. By selecting the radius of curvature R of the arc-shaped light-emitting convex surface 211 within the above range in this application, it is convenient to have appropriate light brightness and diffusion angle for the light emitted in the high-beam illumination mode and the low-beam illumination mode to illuminate the external environment, and when the accompanying lighting module 300 generates light, the light-emitting surface 210 can present an appropriate brightness.

[0096] To further improve the light-emitting effect of the light from the connecting surface 212, in some embodiments, the connecting surface 212 is provided with a plurality of first microstructures, and the light is deflected at least once at each first microstructure and then emitted, so that part of the light inside the first optical structure 200 is deflected by the plurality of first microstructures and emitted in a form of diffuse scattering, further blurring the lamp shadow of the accompanying lighting light source 310 and making the connecting surface 212 present a uniformly illuminated effect. The type of the first microstructure in the embodiments of this application is not limited, and any first microstructure that can have a light homogenization effect on the light is applicable to this application.

[0097] The first microstructure is a concave microstructure, or the second microstructure is a convex microstructure. In the third direction Z, the thickness of the first microstructure is 0 mm < h1 ≤ 2 mm, preventing 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 it is necessary to satisfy that multiple arc-shaped light-emitting convex surfaces 211 have a common focal position, regarding the size of the first microstructure in the first direction X, it is specifically determined by the number of arc-shaped light-emitting convex surfaces 211 on the light-emitting surface 210. The more the number of arc-shaped light-emitting convex surfaces 211, the smaller the size of the first microstructure in the first direction X; the fewer the number of arc-shaped light-emitting convex surfaces 211, the larger the size of the first microstructure in the first direction X. Regarding the number of arc-shaped light-emitting convex surfaces 211 on the light-emitting surface 210, the embodiments of the present application do not limit this, and it can be specifically 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. In this ratio range, the number of arc-shaped light-emitting convex surfaces 211 segmented from the light-emitting surface 210 is appropriate, so that a suitable space can be reserved between adjacent two arc-shaped light-emitting convex surfaces 211 in the first direction X for arranging the connection surface 212. When M / m is greater than 50, the number of arc-shaped light-emitting convex surfaces 211 segmented from the light-emitting surface 210 is too large, resulting in too small a size of a single connection surface 212 in the first direction X and insufficient light-emitting area of the large-angle light rays emitted from the light-emitting surface 210. In addition, the light-emitting surface 210 is split too finely, which also has the problem of increasing the process difficulty.

[0100] In the embodiments of the present application, in addition to being able to perform light homogenization processing on the light generated by the accompanying lighting source 310 at the light-emitting surface 210 between the first optical structure 200 and the accompanying lighting source 310, light homogenization processing can also be performed inside the first optical structure 200.

[0101] In some embodiments, by designing the surface shape of the first side surface 220, the light generated by the accompanying lighting source 310 can also be subjected to light homogenization processing at the first side surface 220, so as to further reduce the lamp shadow of the accompanying lighting source 310 and present a more uniform lighting effect at the light-emitting surface 210.

[0102] Optionally, as Figure 10As shown in the figure, the first side surface 220 has a plurality of first dimming units 221 that are alternately connected in 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 slopes from the second dimming surface 2212 toward the side where the light-emitting surface 210 is located, and the second dimming surface 2212 slopes 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. The light that enters the first optical structure 200 through the second reflecting surface 250 is projected onto the plurality of first dimming units 221, and after being reflected by the plurality of first dimming units 221, it is emitted from the light-emitting surface 210. Among them, the light that reaches the first dimming unit 221 is refracted or reflected at least once at at least one of the first dimming surface 2211 and the second dimming surface 2212, enters the interior of the first optical structure 200, or is emitted from the light-emitting surface 210.

[0103] As Figure 11 shown, it is a schematic diagram of the light path direction of light at one of the first dimming units 221. The light from the second reflecting 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, and then passes through the first dimming surface 2211 and undergoes a second deflection, and enters the interior of the first optical structure 200 again and is emitted from the light-emitting surface 210. In the embodiment of the present application, along with the light-emitting direction of the lighting light source 310 being inclined relative to the first side surface 220, and after the light generated by the lighting light source 310 is subjected to light homogenization processing by the light homogenizing element 320, the light passing through the light homogenizing element 320 as a whole is also projected onto the first side surface 220 at an inclined angle, so that the light processed by the plurality of first dimming units 221 on the first side surface 220 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 at an inclined angle.

[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 surface 220 will also be reflected at the interface between two media with different media. That is, part of the light will also be reflected at the first dimming surface 2211 and the second dimming surface 2212. As a result, after the light generated by the lighting light source 310 is processed by the plurality of first dimming units 221 on the first side surface 220, most of the light is refracted at the first dimming surface 2211 and the second dimming surface 2212 and can be emitted from the light-emitting surface 210, and the other part of the light continues to be refracted or reflected at least once and then is emitted from the light-emitting surface 210. In this way, the plurality of first dimming units 221 on the first side surface 220 can achieve the effect of light homogenization, making the light-emitting surface 210 present a more evenly lit effect.

[0105] The first dimming surface 2211 and the second dimming surface 2212 play the role of adjusting the angle at which the light generated by the light source 310 is emitted from the light-emitting surface 210. In the embodiment of the present application, the angles of the first dimming surface 2211 and the second dimming surface 2212 are designed so that the light generated by the light source 310 can be deflected at a suitable angle by the first dimming surface 2211 and the second dimming surface 2212 when it reaches the first side surface 220, and can be emitted from the light-emitting surface 210 at a suitable angle, thereby allowing an external observer to observe that the light-emitting surface 210 is illuminated from a top-down and level-viewing angle. In some embodiments, as Figure 11 As shown, the angle γ between the first dimming surface 2211 and the second direction Y is 45°≤γ≤80°. For example, γ can be 45°, 50°, 55°, 60°, 65°, 80°, or any range thereof. Within the above tilt angle range, the first dimming surface 2211 can receive more light passing through the second dimming surface 2212, deflect the light, and project it onto the light-emitting surface 210 at a suitable angle.

[0106] In some embodiments, as Figure 11 As shown, the angle between the first dimming surface 2211 and the second dimming surface 2212 is δ, 85°≤δ≤90°. For example, δ can be 85°, 88°, 90°, 93°, 95°, or any range thereof. Within the above angle range, the inclination angles of the second dimming surface 2212 and the first dimming surface 2211 are coordinated, so that the second dimming surface 2212 has a suitable inclination angle and more fully receives the light passing through the second reflective surface 250. At the same time, the relative inclination angle between the second dimming surface 2212 and the first dimming surface 2211 is suitable, so that the light can be received by the first dimming surface 2211 at a suitable angle after passing through the second dimming surface 2212, and then the light can be refracted by the first dimming surface 2211 and projected onto the light output 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 project it onto the light-emitting surface 210. This allows the light generated by the illuminated light source 310 to undergo a further light-homogenizing process at the first side surface 220, further blurring the light and shadow associated with the illuminated light source 310. The present application does not limit the type of the second microstructure; any microstructure known in the art that has a light-homogenizing effect can be used as the second microstructure for this application.

[0108] It should be noted that the light rays generated by the accompanying lighting source 310 in the embodiments of the present application are 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 rays to propagate in more directions. Furthermore, when the light rays pass through the connecting surface 212 and the arc-shaped light-emitting convex surface 211 of the light-emitting surface 210, they 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-dimming surface 2211 and the second light-dimming surface 2212 are inclined. Therefore, in the second direction Y, the first light-dimming surface 2211 and the second light-dimming surface 2212 will occupy a certain space. Optionally, the first light-dimming unit 221 is recessed into the first optical structure 200, that is, the connecting angle of the first light-dimming surface 2211 and the second light-dimming surface 2212 of the first light-dimming unit 221 faces the inside of the first optical structure 200. In this way, while using the first light-dimming unit 221 to change the propagation direction of the light rays 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-dimming unit 221 is recessed into the first optical structure 200, the height a1 of the first light-dimming unit 221 in the second direction Y needs to be controlled. Optionally, 0 mm < a1 ≤ 3 mm can be set to avoid the first light-dimming unit 221 affecting the main light rays passing through the inside of the first optical structure 200 (for example, the parallel or inclined main light rays generated by the lighting source 100 in the high-beam illumination mode and the low-beam illumination mode).

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

[0111] As described above, in the embodiments of the present application, after the light rays generated by the lighting light source 310 are changed in the propagation direction by a plurality of first dimming units 221 at the first side surface 220, most of the light rays are emitted from the light-emitting surface 210, and a part of the light rays are reflected by the first dimming surface 2211 and the second dimming surface 2212 into the first optical structure 200, and then deflected at other wall surfaces of the first optical structure 200. Among them, in the second direction Y, the first optical structure 200 has a second side surface 230 disposed opposite to the first side surface 220, and the light rays reflected by the first dimming surface 2211 and the second dimming surface 2212 are projected onto wall surfaces such as the second side surface 230 and the second reflecting surface 250. Since the second side surface 230 is disposed opposite to the first side surface 220 in the second direction Y, the second side surface 230 will receive more light rays reflected by the first dimming surface 2211 and the second dimming surface 2212, and the surface shape of the second side surface 230 can be designed so that the second side surface 230 cooperates with the first side surface 220 to adjust the propagation direction of the light rays generated by both the illumination light source 100 and the lighting light 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 reflecting surface, and the second side surface 230 directly reflects the projected light rays.

[0113] In some embodiments, the second side surface 230 includes a plurality of second dimming units 231, the plurality of second dimming units 231 are alternately connected along the 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 inclines from the fourth dimming surface 2312 toward the side where the light-emitting surface 210 is located, the fourth dimming surface 2312 inclines 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 rays. Similarly, the light rays passing through the third dimming surface 2311 enter between the third dimming surface 2311 and the fourth dimming surface 2312 and then pass through the fourth dimming surface 2312 to enter the first optical structure 200, or the light rays passing through the fourth dimming surface 2312 enter between the third dimming surface 2311 and the fourth dimming surface 2312 and then pass through the third dimming surface 2311 to enter the first optical structure 200. Thus, the light rays are refracted and reflected multiple times between the first side surface 220 and the second side surface 230, a part of the light rays are dissipated inside the first optical structure 200, and the other part of the light rays achieve the effect of uniform light and can be emitted from the light-emitting surface 210.

[0114] In the embodiments of the present application, the light generated by the accompanying lighting module 300 is emitted from the first side surface 220, enabling an external observer to observe the illuminated light-emitting surface 210 at a horizontal or downward viewing angle. At the same time, since the light generated by the illumination light source 100 is divergent in both the high-beam illumination mode and the low-beam illumination mode, after the light generated by the illumination light source 100 enters the first optical structure 200, some of the light is projected onto the wall surface of the first optical structure 200 and undergoes refraction and reflection to form stray light. By cooperating the first side surface 220 and the second side surface 230, for example, by providing a plurality of first dimming units 221 on the first side surface 220 and a plurality of second dimming units 231 on the second side surface 230, the plurality of first dimming units 221 and the plurality of second dimming units 231 can not only adjust the light generated by the accompanying lighting source 310, but also cause the stray light in the high-beam illumination mode and the low-beam illumination mode to be dissipated through multiple refractions and reflections between the first side surface 220 and the second side surface 230, improving the light-emitting effect in the high-beam illumination mode and the low-beam illumination mode.

[0115] When the first optical structure 200 adjusts the light in the high-beam illumination mode and the low-beam illumination mode, it is used to adjust the light to be emitted from the light-emitting surface 210 in a divergent shape. Among them, the divergent shape includes the light being divergent in the second direction Y and in the third direction Z. In the embodiments of the present application, through the surface shape design of the first reflecting surface 240 and the second reflecting surface 250, it is ensured that the light generated by the illumination light source 100 is emitted from the light-emitting surface 210 in a divergent shape.

[0116] In some embodiments, at least a part of the first reflecting surface 240 is an arc-shaped concave surface, so as to expand the light entering the first optical structure 200 and project it onto the second reflecting surface 250. Optionally, the entire first reflecting surface 240 is an arc-shaped concave surface. Optionally, the first reflecting surface 240 includes a plurality of first micro-arc-shaped concave surfaces, and the plurality of first micro-arc-shaped concave surfaces are arranged side by side along the first direction X.

[0117] In some embodiments, at least a part of the second reflecting surface 250 is an arc-shaped concave surface, so as to expand the light projected by the first reflecting surface 240 and project it onto the first side surface 220. Optionally, the entire second reflecting surface 250 is an arc-shaped concave surface. Optionally, the second reflecting surface 250 includes a plurality of second micro-arc-shaped concave surfaces, and the plurality of second micro-arc-shaped concave surfaces are arranged side by side along the first direction X.

[0118] In the embodiments of the present application, the radii of curvature of the arc-shaped concave portions of the first reflecting surface 240 and the second reflecting surface 250 can be designed so that the light rays emitted from the light-emitting surface 210 diverge in both the second direction Y and the third direction Z. Regarding the surface shapes of the first reflecting surface 240 and the second reflecting surface 250, the embodiments of the present application do not limit them. Any surface shape in the art that can be used to adjust the light rays generated by the lighting source 100 to diverge and emit from the light-emitting surface 210 is applicable to the present application. It should be noted that since the light rays generated by the accompanying lighting source 310 are homogenized by the homogenizing element 320 and then pass through the homogenizing element 320, the light rays passing through the homogenizing element 320 are projected onto the second reflecting surface 250 in a relatively disorderly direction. Therefore, even if the light rays are deflected by the second reflecting surface 250 when passing through the second reflecting surface 250, a continuous sheet-like effect of being illuminated by the accompanying lighting source 310 can be presented at the light-emitting surface 210.

[0119] Please refer again to Figure 1 , the lighting module 10 further 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 rays generated by the lighting source 100, deflects the light rays, and projects them onto the first optical structure 200. That is, the second optical structure 400 and the first optical structure 200 cooperate to adjust the light rays generated by the lighting source 100 to meet the light-emitting requirements in the high-beam lighting mode and the low-beam lighting mode. In some embodiments, the light rays emitted by the lighting source 100 form parallel light rays after passing through the second optical structure 400. The parallel light rays enter the first optical structure 200 and are sequentially projected onto the first reflecting surface 240 and the second reflecting surface 250. Optionally, as Figure 12 shown, the first optical structure 200 includes a light-incident surface 410 and a reflecting bowl surface 420. The light-incident surface 410 is disposed facing the lighting source 100, and the light-incident surface 410 is a concave arc surface. The light rays generated by the lighting source 100 pass through the light-incident surface 410, are converged, and projected onto the reflecting bowl surface 420. After being reflected by the reflecting bowl surface 420, they are projected onto the first reflecting surface 240, and then are reflected by the first reflecting surface 240 and sequentially projected onto the second reflecting surface 250 and the first side surface 220, and then diverge and emit from the light-emitting surface 210.

[0120] In some embodiments, the second optical structure 400 and the first optical structure 200 are integrally provided so as to integrally form the second optical structure 400 and the first optical structure 200. Optionally, the lighting source 100 includes a plurality of second lamp beads 110 arranged side by side in the third direction Z. The second optical structure 400 may include a plurality of light-incident surfaces 410 and a plurality of reflecting bowl surfaces 420 that are arranged in one-to-one correspondence with the plurality of second lamp beads 110. The light rays reflected by the plurality of reflecting bowl surfaces 420 are all projected onto the first reflecting surface 240.

[0121] In some embodiments, the first optical structure 200 and the second optical structure 400 adopt a lens structure capable of transmitting light; alternatively, the first optical structure 200 adopts a lens structure capable of transmitting light, and the second optical structure 400 adopts a mirror capable of reflecting light.

[0122] In the embodiments of the present application, regarding the surface profiles of the light incident surface 410 and the reflecting bowl surface 420, the embodiments of the present application do not make any limitations thereto. Any light incident surface 410 and reflecting bowl surface 420 in the art that can meet the dimming requirements of the high beam illumination mode and the low beam illumination mode are applicable to the present application.

[0123] The embodiments of the present application do not make any limitations on the materials of the first optical structure 200 and the second optical structure 400. Any materials in the art that can meet the dimming requirements of the present application can be used for the first optical structure 200 and the second optical structure 400.

[0124] The embodiments of the present application further provide a vehicle lamp, which can be applied to a vehicle and can be used as at least one of the vehicle lamps with lighting functions such as the front vehicle lamp and the rear vehicle lamp of the vehicle. The vehicle lamp includes a signal lamp module and the lighting module 10 described above. Among them, the first direction X is the front-rear direction of the vehicle. When the vehicle lamp is used as the front vehicle lamp of the vehicle, the first horizontal direction H is the direction towards the front side of the vehicle. When the vehicle lamp is used as the rear vehicle lamp of the vehicle, the first horizontal direction H is the direction towards the rear side of the vehicle.

[0125] As Figure 13 shown, it is the light pattern diagram of the light emitted by the accompanying lighting module 300 of the lighting module 10 when the vehicle lamp of an embodiment of the present application adopts the lighting module 10. It can be seen from Figure 13 this that the light pattern has a large angle in both the horizontal direction and the vertical direction. Bright light can be seen from all angles, and it can well supplement the signal lamp regulations.

[0126] In some embodiments, the lighting module 10 and the signal lamp module are arranged side by side, and the accompanying lighting module 300 is configured to generate light synchronously with the signal lamp module. Among them, the signal lamp module can be a daytime lamp module, a turn signal lamp module, etc. When the signal lamp module is lit, the lighting light source 100 can be controlled to generate light to light up the light output surface 210. When the lighting light source 100 does not generate light, the accompanying lighting module 300 can be controlled to generate light to light up the light output surface 210, preventing a visual sense of emptiness caused by the light output 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 the present application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and cannot be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0128] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A lighting module, characterized in that, Comprising: A lighting light source; A first optical structure, spaced apart from the lighting light source along a first direction, the first optical structure having a light-emitting surface facing away from the lighting light source, and having a first reflecting surface and a second reflecting surface oppositely arranged along a second direction, the second direction being perpendicular to the first direction, the light generated by the lighting light source enters the first optical structure and is sequentially reflected by the first reflecting surface and the second reflecting surface, and exits from the light-emitting surface; the first optical structure also has a first side surface located between the first reflecting surface and the light-emitting surface in the first direction; and An accompanying lighting module, disposed on one side of the lighting light source in the second direction and facing the second reflecting surface, the second reflecting surface being a semi-reflecting surface, the light generated by the accompanying lighting module passes through the second reflecting surface and enters the first optical structure and is projected onto the first side surface, and is reflected by the first side surface and exits from the light-emitting surface.

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

3. The lighting module according to claim 2, wherein The accompanying lighting light source includes a plurality of first lamp beads arranged at intervals and at least one light homogenizing element, the light generated by the plurality of first lamp beads is homogenized by the same light homogenizing element and then projected onto the second reflecting surface; Along the direction perpendicular to the first direction, the distance between two adjacent first lamp beads is L1, along the light-emitting direction of the accompanying lighting light source, the distance between the first lamp bead and the light homogenizing element is L2, and 1.0 ≤ L2 / L1 ≤ 2.

0.

4. The lighting module according to claim 2, wherein Along the first horizontal direction in which the accompanying lighting module faces the light-emitting surface, both the first reflecting surface and the second reflecting 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 homogenizing element is a light homogenizing plate, the light-emitting direction of the accompanying lighting light source is parallel to the normal direction of the light homogenizing plate, and the angle between the light-emitting direction of the accompanying lighting light source and the horizontal direction is α, 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 alternately connected along a third direction, the first direction, the second direction, and the third direction are perpendicular to each other in pairs; Along the second horizontal direction parallel to the third direction, the distances between the plurality of arc-shaped light-emitting convex surfaces gradually decrease in the first direction to the distance from the accompanying lighting light source, and the plurality of arc-shaped light-emitting convex surfaces have a common focal position; The connecting surface is arranged at an angle with the third direction.

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

7. The lighting module according to claim 5, characterized in that, The connecting surface has a plurality of first microstructures, and part of the light inside the first optical structure is deflected by the plurality of first microstructures and then emitted in a form of diffuse scattering.

8. The lighting module according to claim 1, wherein the first side surface has a plurality of first dimming units alternately connected along the first direction, each of the first dimming units includes a first dimming surface and a second dimming surface, the first dimming surface is inclined from the second dimming surface toward the side where the light-emitting surface is located, and the second dimming surface is inclined from the first dimming surface toward the side away from the light-emitting surface; The light entering the first optical structure through the second reflecting surface is projected onto the plurality of first dimming units, and is reflected by the plurality of first dimming units and then emitted from the light-emitting surface.

9. The lighting module according to claim 8, wherein at least one of the first dimming surface and the second dimming surface has a plurality of second microstructures to project the light projected onto the first side surface onto the light-emitting surface after diffuse reflection; and / or, the included angle between the first dimming surface and the second direction is γ, and 45° ≤ γ ≤ 80°; and / or, the included angle between the first dimming surface and the second dimming surface is δ, and 85° ≤ δ ≤ 95°.

10. The lighting module according to claim 1, wherein at least part of the first reflecting surface is in an arc-shaped concave surface to expand the light entering the first optical structure and then project it onto the second reflecting surface; and / or, at least part of the second reflecting surface is in an arc-shaped concave surface to expand the light projected by the first reflecting surface and then 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 light source, and the second optical structure is integrally provided with the first optical structure; The light emitted by the lighting light source is deflected by the second optical structure and then sequentially projected onto the first reflecting surface and the second reflecting surface.

12. A vehicle lamp, characterized in that, Comprising: a signal lamp module; and the lighting module according to any one of claims 1-11, and the accompanying lighting module is configured to be able to generate light synchronously with the signal lamp module.

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