Lighting device and vehicle

Abstract

The application provides a light device and a vehicle. The light device comprises a light guide element and a first light distribution element; the light guide element comprises a first light emitting surface emitting light in a first direction and a second light emitting surface emitting light in a second direction; the first light distribution element is arranged on a propagation path of light emitted by the second light emitting surface and is used for deflecting the light emitted by the light emitting surface and emitting the light towards the outside of the light device. The first light distribution element is provided with a concave structure and a convex structure; in the width direction of the light device, the concave structure presents a first concave shape; in the second direction, the concave structure presents a second concave shape, and an end of the concave structure away from the second light emitting surface is connected with the convex structure. The application can be applied to intelligent vehicles or new energy vehicles; in the technical scheme, the concave structure and the convex structure are arranged on the light distribution element, so that the light device can present a ring lighting effect, and the uniqueness and the aesthetic appearance of the vehicle lamp can be improved.

Description

Technical Field

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

[0002] With the development of vehicle technology, in order to meet the requirements of vehicle lights to meet the functions of illumination / indication (such as turning and braking), vehicle manufacturers and users are paying more and more attention to the aesthetics and uniqueness of vehicle light designs, resulting in a greater diversity of vehicle light designs on the market.

[0003] The lighting effect of car headlights is an important aspect of evaluating their aesthetics. Currently, the design of car headlights often prioritizes meeting regulatory requirements and ensuring uniform light emission, resulting in a monotonous lighting effect that fails to reflect brand characteristics and individual needs. In some cases, the aesthetics of the headlights may even deteriorate after being illuminated. Utility Model Content

[0004] This application provides a lighting device and a vehicle that can have a unique and beautiful lighting effect, thereby enhancing the uniqueness and aesthetics of vehicle lights.

[0005] In a first aspect, a lighting device (1) is provided. The lighting device (1) includes a light guide element (21) and a first light distribution element (22). The light guide element (21) includes a first light emitting surface (211) and a second light emitting surface (212); the first light emitting surface (211) is used to emit a first light ray along a first direction, and the second light emitting surface (212) is used to emit a second light ray along a second direction. The first direction and the second direction are different, and the first direction faces the outside of the lighting device. The first light distribution element (22) is disposed on the propagation path of the second light ray emitted from the second light emitting surface (212) and is used to deflect the second light ray emitted from the second light emitting surface (212) and emit it along the first direction. The first light distribution element (22) is provided with a concave structure (223) and a convex structure (224); in the width direction of the light device (1), the concave structure (223) is a first concave shape; in the second direction, the concave structure (223) is a second concave shape, and the end of the concave structure (223) away from the second light-emitting surface (212) is connected to the convex structure (224).

[0006] In this application, by setting a concave structure (223) and a convex structure (224) on the light distribution element (22), the light beam emitted from the light-emitting surface (212) can present a ring-shaped lighting effect after being deflected by the light distribution element (22), which can enhance the uniqueness and aesthetics of the vehicle lamp.

[0007] In some possible implementations, within a first region in the width direction of the lighting device (1), the first light distribution element (22) may include: a first reflective region composed of a convex structure (224) and a second reflective region composed of a concave structure (223). The first reflective region may be used to: deflect a first portion of the second light ray emitted from the second light-emitting surface (212) and emit it along a first direction, and deflect a second portion of the second light ray emitted from the second light-emitting surface (212) and emit it along a third direction. The second reflective region may be used to: deflect the light ray emitted along a third direction after being deflected by the first reflective region and emit it along the first direction.

[0008] In some possible implementations, within a second region in the width direction of the lighting device (1), the first light distribution element (22) may include a third reflection region; the third reflection region may be used to: deflect a third portion of the second light emitted from the second light-emitting surface (212) at least once and then emit it along a first direction.

[0009] In this application, based on the setting of reflective areas within the first region, the light emitted from the first and second reflective areas can respectively constitute the upper and lower parts of the ring-shaped lighting effect. Based on the setting of reflective areas within the second region, the light emitted after one or more reflections by the third reflective area can constitute the part of the ring-shaped lighting effect that is connected in the second direction.

[0010] In some possible implementations, within a first region in the width direction of the lighting device (1), on a cross section perpendicular to the width direction of the lighting device (1), the maximum value of the curvature of the concave structure (223) can be greater than the minimum value of the curvature of the convex structure (224).

[0011] In this application, by setting the curvature of the concave and convex structures, the situation where the lighting effect is not obvious due to excessive divergence of light emitted from the second reflection area can be avoided.

[0012] In some possible implementations, the first region is closer to the middle of the first concave shape than the second region.

[0013] In some possible implementations, the curvature of the concave structure (223) in the second region can be greater than the curvature of the concave structure (223) in the first region in a cross section perpendicular to the height direction of the lighting device (1).

[0014] In this application, by setting the curvature of the first and second regions on the cross section perpendicular to the height of the lighting device, the hollow area of ​​the ring-shaped lighting effect can be made more obvious, which is beneficial to improving the user's perception of the lighting effect and enhancing its aesthetics and uniqueness.

[0015] In some possible implementations, the first light distribution element (22) is positioned below the light guide element (21). In the height direction of the lighting device (1), the distance between the second light-emitting surface (212) and the first reflective area is less than or equal to 100 mm.

[0016] In real-world scenarios, when the distance between the light-emitting surface (212) and the first reflective area is large, the lighting effect observed by the user will be relatively dim. In this application, the distance between the light-emitting surface (212) and the first reflective area is less than or equal to 100 mm, which can ensure the clarity of the lighting effect of the lighting device (1) and help improve the quality of the lighting effect.

[0017] In some possible implementations, the first light distribution element (22) may be positioned below the light guide element (21). In a cross section perpendicular to the width direction of the lighting device (1), the curvature of the first reflective area away from the second light-emitting surface (212) may be greater than the curvature of the first reflective area near the second light-emitting surface (212).

[0018] In this application, when the curvature of the end of the first reflective region away from the light-emitting surface (212) is greater than the curvature of the end of the first reflective region closer to the light-emitting surface (212), users / other traffic participants can observe the unique lighting effect of the lighting device even when they are far away from it. In this way, the observer's perception of the lighting effect can be improved.

[0019] In some possible implementations, the first light distribution element (22) is disposed below the light guide element (21). In a cross-section perpendicular to the width direction of the lighting device (1), the curvature of the concave structure (223) at the first position can be greater than the curvature of the concave structure (223) at the second position, and the curvature of the concave structure (223) at the first position can be greater than the curvature of the concave structure (223) at the third position. In the height direction of the lighting device (1), the distance between the first position and the second light-emitting surface (212) can be greater than the distance between the second position and the second light-emitting surface (212), and the distance between the first position and the second light-emitting surface (212) can be less than the distance between the third position and the second light-emitting surface (212).

[0020] In this application, by setting the curvature of the first to third positions on the cross section perpendicular to the width direction of the lighting device, the hollow area of ​​the ring-shaped lighting effect can be made more obvious, which is conducive to improving the user's perception of the lighting effect and enhancing the aesthetics and uniqueness of the lighting effect.

[0021] In some possible implementations, the color of the first light distribution element (22) may be different from the color of the light guide element (21).

[0022] In this application, when the light guide element and the light distribution element are of different colors, the lighting device can present a unique and beautiful appearance under the action of natural light source even when it is not lit, which can enhance the uniqueness and aesthetics of the vehicle lights.

[0023] In some possible implementations, the first light distribution element (22) may include a first surface (221) and a second surface (222) disposed opposite to each other, the first surface (221) being oriented toward the outside of the lighting device (1); the first surface (221) or the second surface (222) may be provided with a semi-transparent and semi-reflective film.

[0024] In this application, on the one hand, the reflective effect of the semi-transparent and semi-reflective film can achieve the deflection effect of light; on the other hand, when other optical elements are arranged behind the first light distribution element (22), the light emitted from these optical elements can pass through the first light distribution element (22) and be emitted to the outside of the lighting device (1) under the light transmission effect of the semi-transparent and semi-reflective film. By setting the semi-transparent and semi-reflective film, both the ring lighting effect and the coupling with other lighting effects can be achieved.

[0025] In some possible implementations, the lighting device (1) may also include a light source module (45) and a second light distribution element (44). The light source module (45) is used to generate a third light ray; the first light distribution element (22) and the second light distribution element (44) may be disposed on the propagation path of the third light ray, and the second light distribution element (44) may be disposed between the first light distribution element (22) and the light source module (45). The second light distribution element (44) may include a first light-incident surface (442) and a third light-exit surface (441) disposed opposite to each other in the light-exit direction of the lighting device (1); the third light-exit surface (441) may be provided with multiple protruding light-exiting parts, and the protruding light-exiting parts may be polyhedral structures.

[0026] In this application, by setting a protruding light-emitting part, when an observer views the lighting device from different angles, they can perceive different light intensities depending on the viewing angle. In other words, this method can achieve a multi-view angle-varying light intensity effect. In particular, when the lighting device can produce personalized patterns such as text or starry skies, the light intensity variation effect can make the personalized patterns more vivid and enhance the perceived quality of the lighting device.

[0027] In some possible implementations, the second surface (222) may be provided with a light-shielding area and a light-transmitting area.

[0028] In this application, by setting up light-blocking and light-transmitting areas, the lighting device is able to produce personalized patterns such as text and starry skies.

[0029] In some possible implementations, the light-transmitting areas set on the second surface (222) can form text graphics; or, the second surface (222) can include multiple light-transmitting areas, which are randomly distributed on the second surface (222), and the size of each light-transmitting area in the multiple light-transmitting areas is less than or equal to a second threshold.

[0030] In this application, when the light-transmitting area forms a text or graphic shape, the lighting device can present a text-shaped lighting effect; when the light-transmitting area includes multiple randomly distributed light-transmitting areas, the lighting device can present a starry sky-shaped lighting effect.

[0031] Secondly, a lighting device (2) is provided. The lighting device (2) includes a third light distribution element (32), a fourth light distribution element (33), and a light source module (35). The light source module (35) is used to generate light; the third light distribution element (32) and the fourth light distribution element (33) are disposed in the propagation path of the light, and the fourth light distribution element (33) is disposed between the third light distribution element (32) and the light source module (35). The third light distribution element (32) is provided with a first semi-transparent and semi-reflective film, and the fourth light distribution element (33) is provided with a second semi-transparent and semi-reflective film.

[0032] In this application, by setting semi-transparent and semi-reflective films on the third and fourth light distribution elements respectively, the light emitted from the light source module can undergo multiple reflections between the first and second semi-transparent and semi-reflective films. Even if the distance between these two light distribution elements is small, a depth-of-field lighting effect can be produced. In particular, when the lighting device can produce personalized patterns such as text and starry skies, the depth-of-field lighting effect can make the personalized patterns more vivid and enhance the quality of the lighting device.

[0033] In some possible implementations, the first semi-transparent and semi-reflective film can be disposed on the third surface (321, 322) of the third light distribution element (32), and the second semi-transparent and semi-reflective film can be disposed on the fourth surface (331, 332) of the fourth light distribution element (33). The first exit angle of the light when it exits through the third surface (321, 322) can be different from the second exit angle of the light when it exits through the fourth surface (331, 332).

[0034] If the angle of light exiting the third surface is equal to the angle of light exiting the fourth surface, the light intensity perceived by the observer will be relatively low. In this application, the angle of light exiting the first surface is different from the angle of light exiting the second surface, which helps to improve the quality of the depth lighting effect.

[0035] In some possible implementations, the first and second semi-transparent and semi-reflective films can be disposed within a first range in the width direction of the lighting device (2) and within a second range in the height direction of the lighting device (2). The angle between the third surface (321, 322) and the first horizontal line can be different from the angle between the fourth surface (331, 332) and the first horizontal line. In the width direction of the lighting device (2), the first horizontal line can be within the first range and parallel to the width direction; in the height direction of the lighting device (2), the first horizontal line can be within the second range.

[0036] If the angle between the first horizontal line and the third surface is equal to the angle between the first horizontal line and the fourth surface, the light intensity perceived by the observer will be relatively small. In this application, by reasonably setting the angles between the first horizontal line and the third and fourth surfaces, the quality of the depth lighting effect is improved.

[0037] In some possible implementations, the third light distribution element (32) may include a second light-incident surface (322) and a fourth light-exit surface (321) disposed opposite to each other in the light-exit direction of the lighting device (2), and the first semi-transparent and semi-reflective film may be disposed on the fourth light-exit surface (321) or the second light-incident surface (322). The fourth light distribution element (33) may include a third light-incident surface (332) and a fifth light-exit surface (331) disposed opposite to each other in the light-exit direction of the lighting device (2), and the second semi-transparent and semi-reflective film may be disposed on the fifth light-exit surface (331).

[0038] For example, the surface in which the first semi-transparent and semi-reflective film is disposed in the fourth light-emitting surface (321) and the second light-receiving surface (322) can correspond to the third surface mentioned above. As another example, when the second semi-transparent and semi-reflective film is disposed in the fifth light-emitting surface (331), the fifth light-emitting surface can correspond to the fourth surface mentioned above.

[0039] In some possible implementations, the third light-incident surface (332) of the fourth light-distributing element (33) may be provided with a light-shielding area and a light-transmitting area.

[0040] In this application, by setting up light-blocking and light-transmitting areas, the lighting device is able to produce personalized patterns such as text and starry skies.

[0041] In some possible implementations, the light-transmitting areas set on the third light-receiving surface (332) can form text graphics; or, the third light-receiving surface (332) includes multiple light-transmitting areas, which are randomly distributed on the third light-receiving surface (332), and the size of each light-transmitting area in the multiple light-transmitting areas is less than or equal to the second threshold.

[0042] In this application, when the light-transmitting area forms a text or graphic shape, the lighting device can present a text-shaped lighting effect; when the light-transmitting area includes multiple randomly distributed light-transmitting areas, the lighting device can present a starry sky-shaped lighting effect.

[0043] In some possible implementations, the lighting device (2) may also include a second light distribution element (44); the second light distribution element (44) may be disposed on the propagation path of light, and the second light distribution element (44) may be disposed between the fourth light distribution element (33) and the light source module (35). The second light distribution element (44) may include a first light-incident surface (442) and a third light-exiting surface (441) disposed opposite to each other in the light-exiting direction of the lighting device (2); the third light-exiting surface (441) may be provided with multiple protruding light-exiting parts, and the protruding light-exiting parts may be polyhedral structures.

[0044] In this application, by setting a protruding light-emitting part, when an observer views the lighting device from different angles, they can perceive different light intensities depending on the viewing angle. In other words, this method can achieve a multi-view angle-varying light intensity effect. In particular, when the lighting device can produce personalized patterns such as text or starry skies, the light intensity variation effect can make the personalized patterns more vivid and enhance the perceived quality of the lighting device.

[0045] Thirdly, a lighting device (4) is provided. The lighting device (4) includes a light guide element (51) and a first light distribution element (52). The light guide element (51) includes a first light emitting surface (511) and a second light emitting surface (512); the first light emitting surface (511) is used to emit a first light ray along a first direction, and the second light emitting surface (512) is used to emit a second light ray along a second direction. The first direction and the second direction are different, and the first direction faces the outside of the lighting device. The first light distribution element (52) is disposed on the propagation path of the second light ray emitted from the second light emitting surface (512) and is used to deflect the second light ray emitted from the second light emitting surface (512) and emit it along the first direction. The first light distribution element (52) is provided with a concave structure and a convex structure; in the width direction of the lighting device (4), the concave structure is a first concave shape; in the second direction, the concave structure is a second concave shape, and the end of the concave structure away from the second light emitting surface (512) is connected to the convex structure. The lighting device (4) further includes a light source module (55) and a fourth light distribution element (53). The light source module (55) is used to generate a third light ray; the first light distribution element (52) and the fourth light distribution element (53) are disposed on the propagation path of the third light ray, and the fourth light distribution element (53) is disposed between the first light distribution element (52) and the light source module (55). The first light distribution element (52) is provided with a first semi-transparent and semi-reflective film, and the fourth light distribution element (53) is provided with a second semi-transparent and semi-reflective film.

[0046] For example, regarding the first light-distributing element, reference can be made to the relevant descriptions in the first aspect and any possible implementation thereof. Regarding the fourth light-distributing element, reference can be made to the relevant descriptions in the second aspect and any possible implementation thereof.

[0047] In some possible implementations, the lighting device (4) may also include a second light distribution element (54), which may be disposed on the propagation path of the third light beam and between the fourth light distribution element (53) and the light source module (55). The second light distribution element (54) may include a first light-incident surface (542) and a third light-exiting surface (541) disposed opposite to each other in the light-exiting direction of the lighting device (4); the third light-exiting surface (541) may be provided with a plurality of protruding light-exiting portions, which may be polyhedral structures.

[0048] For example, regarding the second light distribution element, reference can be made to the relevant descriptions in the first or second aspect and any possible implementation thereof described above.

[0049] In some possible implementations, the fourth light distribution element (53) may include a third light-incident surface (532) and a fifth light-exit surface (531) disposed opposite to each other in the light-exit direction of the lighting device (4); the second semi-transparent and semi-reflective film may be disposed on the fifth light-exit surface (531), and the third light-incident surface (532) of the fourth light distribution element (53) may be provided with a light-blocking area and a light-transmitting area.

[0050] In some possible implementations, the light-transmitting area set on the third light-receiving surface (532) can form text graphics; or, the third light-receiving surface (532) can include multiple light-transmitting areas, which can be randomly distributed on the fourth light-receiving surface (442), and the size of each light-transmitting area in the multiple light-transmitting areas can be less than or equal to the second threshold.

[0051] Fourthly, a vehicle is provided that includes the lighting device described in the first to third aspects and any possible implementation thereof. Attached Figure Description

[0052] Figure 1 This is a schematic diagram of the structure of a lighting device provided in an embodiment of this application;

[0053] Figure 2 This is a schematic diagram of the structure of the light distribution element 22 provided in the embodiments of this application;

[0054] Figure 3 This is a schematic diagram of the lighting effect of the lighting device 1 provided in the embodiment of this application;

[0055] Figure 4 This is a schematic diagram of a light propagation path provided in an embodiment of this application;

[0056] Figure 5 This is a schematic diagram of the structure of the light distribution element 22 provided in the embodiments of this application;

[0057] Figure 6 This is a schematic diagram of another lighting device provided in an embodiment of this application;

[0058] Figure 7 This is a schematic diagram of the lighting effect of the lighting device 2 provided in the embodiment of this application;

[0059] Figure 8 This is a schematic diagram of the structure of the light distribution elements 32 and 33 provided in the embodiments of this application;

[0060] Figure 9 This is a schematic diagram of the light-shielding area and the light-transmitting area provided in the embodiments of this application;

[0061] Figure 10 This is a schematic diagram of another lighting device provided in an embodiment of this application;

[0062] Figure 11 This is a partial schematic diagram of the light-emitting surface 441 provided in an embodiment of this application;

[0063] Figure 12 This is a schematic diagram of another lighting device provided in an embodiment of this application. Detailed Implementation

[0064] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0065] The detailed description and accompanying drawings of the following embodiments are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application, that is, this application is not limited to the described embodiments.

[0066] Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and other forms such as the third-person singular "comprises" and the present participle "comprising" are interpreted as open and inclusive, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this application. The illustrative representations of the foregoing terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be included in any suitable manner in any of the embodiments or examples.

[0067] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0068] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structures in the embodiments of this application. It should also be noted in the description of the embodiments of this application that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0069] In this application, the term "embodiment" is used to mean that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. Those skilled in the art will explicitly and implicitly understand that the embodiments described in this application can be combined with other embodiments.

[0070] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0071] In addition, the use of “based on” implies openness and inclusivity, because a process, step, calculation or other action “based on” one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0072] The terms “about,” “approximately,” or “approximately” used in this application embodiment include the stated value and the average value within an acceptable deviation range of a particular value, wherein the acceptable deviation range is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the particular quantity, i.e., the limitations of the measurement system.

[0073] As mentioned above, with the development of vehicle technology, increasingly higher demands are being placed on the uniqueness and aesthetics of vehicle lights. Among these, the lighting effect of vehicle lights is an important aspect of evaluating their aesthetics. However, in the development of some vehicle lights, the design of the structure and lighting effect may be guided primarily by meeting regulatory requirements and ensuring uniform light emission. In such cases, the aesthetics of the vehicle lights may not be improved after being illuminated compared to when they are not illuminated, and may even deteriorate after being illuminated.

[0074] Therefore, embodiments of this application provide a lighting device that makes the lighting effect of vehicle lights more unique and beautiful, thereby enhancing the uniqueness and aesthetics of vehicle lights.

[0075] For example, Figure 1 This is a structural schematic diagram of a lighting device provided in an embodiment of this application. Figure 1 As shown, the lighting device 1 may include a light guide element 21 and a light distribution element 22. Figure 1 It can be understood as a certain cross section along the width direction of the lighting device 1.

[0076] The light guide element 21 can be an optical element with light guiding effect, such as a thick-walled component or a light guide strip.

[0077] The light guide element 21 may include a light-emitting surface 212 and a light-emitting surface 211. The light-emitting surface 211 can emit a first light beam along a first direction; the light-emitting surface 212 can emit a second light beam along a second direction. The first direction can be directed towards the outside of the lighting device 1, that is, the first direction can be the light-emitting direction of the lighting device 1. The second direction is different from the first direction.

[0078] For example, light entering the light guide element 21, after being guided by the light guide element 21, can be partially emitted from the light-emitting surface 211 and partially emitted from the light-emitting surface 212. In this case, the light emitted from the light-emitting surface 211 can be considered as an example of the first light ray; the light emitted from the light-emitting surface 212 can be considered as an example of the second light ray. The light entering the light guide element 21 can be light emitted by the light source module of the lighting device 1, or light emitted / reflected / scattered by a natural light source.

[0079] In one embodiment, such as Figure 1 As shown, the light-emitting surface 211 can be disposed at the end of the light guide element 21; the light emitted from the light-emitting surface 211 can be emitted to the outside of the lighting device 1. Figure 1 As shown, the light-emitting surface 212 can be disposed at the bottom of the light guide element 21; the light emitted from the light-emitting surface 212 can be emitted towards the light distribution element 22.

[0080] In another embodiment, the relative positional relationship between the light guide element 21 and the light distribution element 22 can be adjusted according to actual needs. In one example, unlike... Figure 1 The scheme shown allows the light distribution element 22 to be positioned above the light guide element 21.

[0081] The light distribution element 22 deflects light, for example, through reflection, refraction, or scattering. The light distribution element 22 can be positioned along the propagation path of the light emitted from the light-emitting surface 212. The light distribution element 22 can deflect the light emitted from the light-emitting surface 212 at least once before it is emitted along a first direction. For example, under the guiding action of the light guide element 21, multiple light rays can be emitted from the light-emitting surface 212, serving as examples of a second light ray. Furthermore, for some light rays, they can be deflected once on the light distribution element 22 before being emitted towards the outside of the lighting device 1; for others, they can be deflected multiple times on the light distribution element 22 before being emitted towards the outside of the lighting device 1.

[0082] The light distribution element 22 may include a concave structure 223 and a convex structure 224. The concave structure 223 and the convex structure 224 may be composed of curved surfaces. For the concave structure 223 and the convex structure 224, the curvature and / or the change in curvature may be different at different cross-sections.

[0083] For example, in the width direction of the lighting device, the concave structure 223 can be presented as a first concave shape; in the second direction, the concave structure 223 can be presented as a second concave shape. For example, in... Figure 1 In the cross-section shown, the concave structure 223 can be concave in one form, with its opening direction facing outwards from the lighting device 1. This concave shape can serve as an example of a first concave shape. Alternatively, assuming the second direction is parallel to or has a component of the height direction of the lighting device 1, in a cross-section perpendicular to the height direction of the lighting device 1, the concave structure 223 can be concave in another form, with its opening direction also facing outwards from the lighting device 1. That is, along the height direction of the lighting device 1, the middle portion of the concave structure 223 is recessed inwards from the edge portions on both sides of the concave structure 223; and along the width direction of the lighting device 1, the middle portion of the concave structure 223 is recessed inwards from the edge portions on both sides of the concave structure 223.

[0084] In one embodiment, the opening of the concave structure 223 faces the outside of the lighting device 1. When the concave structure 223 is viewed from the outside of the lighting device 1, it can appear as a valley / basin shape with a low center and high sides.

[0085] The concave structure 223 and the convex structure 224 can be arranged side by side along the second direction; in the second direction, the convex structure 224 can be located at the end away from the light-emitting surface 212, and the concave structure 223 can be located at the end closer to the light-emitting surface 212. For example, assuming the second direction is parallel to the height direction of the lighting device 1, in Figure 1In the cross-section shown, the concave structure 223 of the light distribution element 22 can be positioned above the convex structure 224.

[0086] The convex structure 224 can be connected to the concave structure 223. For example, as Figure 1 As shown, the end of the concave structure 223 can be connected to the end of the convex structure 224, meaning that the concave structure 223 can directly transition to the convex structure 224. Alternatively, features such as planes or curved surfaces can be provided between the two for connection, enabling the transition from the concave structure 223 to the convex structure 224.

[0087] For example, the lighting device 1 may also include a lamp housing 11 and a lamp shade 12. The lamp housing 11 and the lamp shade 12 may be closed to form a receiving space. For example, a light guide element 21, a light distribution element 22, and a light source module may be disposed in this receiving space.

[0088] The lighting device 1 may also be provided with fixing / supporting structures for components such as a lampshade 12, a light guide element 21, and a light distribution element 22. For example, the lamp housing 11 can be fixedly connected to the lampshade 12 via a support structure 111. As another example, the light guide element 21 can be fixed via support structures 112 and 113. As yet another example, the light distribution element 22 can be fixed via support structures 113 and 114. One or more of the aforementioned support structures 111, 112, 113, and 114 can be coupled to the lamp housing 11, or they can be independent components.

[0089] The lampshade 12 can be positioned on the propagation path of the light emitted from the light-emitting surface 211. For example, the light emitted from the light-emitting surface 211 and the light-distributing element 22 can be emitted to the outside of the lighting device 1 through the lampshade 12.

[0090] In this embodiment, the light guide element 21 and the light distribution element 22 can be disposed in the accommodating space formed by the lamp housing 11 and the lamp shade 12; thereby, the lamp housing 11 and the lamp shade 12 can provide waterproof and dustproof protection for the light guide element 21 and the light distribution element 22 disposed in the accommodating space, thereby improving the reliability and service life of the lighting device 1.

[0091] In some possible implementations, the lighting device 1 may also include a component 13. For example, the component 13 may scatter / reflect light incident on its surface, guiding light that would not otherwise reach the lampshade 12 to the lampshade 12 through scattering / reflection, and then emitting it from the lampshade 12. This improves the utilization rate of light. Alternatively, the component 13 may be a decorative element, enhancing the aesthetics and uniqueness of the lighting device 1.

[0092] The following example uses a light distribution element 22 positioned below a light guide element 21. Figure 2The structures of concave structure 223 and convex structure 224 are illustrated by way of example.

[0093] For example, Figure 2 This is a schematic diagram of the structure of the light distribution element 22 provided in an embodiment of this application. Figure 2 In the middle, the positional relationship between the light guide element 21 and the light distribution element 22 is... Figure 1 The two are in the same position. The x, y, and z directions can represent the length, width, and height of the lighting device, respectively.

[0094] like Figure 2 As shown in (a), the surfaces 221 and 222 of the light distribution element 22 can be provided with a valley-shaped concave structure. Light emitted from the light-emitting surface 211 can be emitted to the outside of the lighting device 1 through the lampshade 12. Light emitted from the light-emitting surface 212, after being deflected by the light distribution element 22, can be emitted to the outside of the lighting device 1 through the lampshade 12.

[0095] The cross-sectional views of the light distribution element 22 at different sections (e.g., section AA, section CC) in the direction perpendicular to the width of the lighting device 1 can be as follows: Figure 2 As shown in (b) and (d) in the figure; the cross-sectional view of the light distribution element 22 at a certain section (e.g., section BB) in the direction perpendicular to the height of the lighting device 1 can be seen as follows. Figure 2 As shown in (c) in the figure.

[0096] In one embodiment, such as Figure 2 As shown in (b) of the figure, at different locations on the same cross section, the concave structure 223 can have different radii of curvature, such as radii of curvature R1 to R3; the convex structure 224 can also have different radii of curvature, such as radii of curvature R4 and R5.

[0097] In yet another embodiment, such as Figure 2 As shown in (b) and (d) in the figure, the curvature and / or curvature variation of the concave structure 223 / convex structure 224 may also be different on different cross sections.

[0098] In one embodiment, it is assumed that the projection direction of the light-emitting surface 211 onto the yz plane is rectangular, and that the projection of the light-emitting surface 212 onto the xy plane is also rectangular. In this case, the lighting effect of the lighting device 1 can be as follows: Figure 3 As shown in the figure. The light emitted from the light-emitting surface 211 can form the lighting effect shown in Figure A; the light emitted from the light-emitting surface 212, after being deflected by the light distribution element 22, can form the lighting effect shown in Figure B.

[0099] In this embodiment, by providing a concave structure 223 and a convex structure 224 on the light distribution element 22, the light beam emitted from the light-emitting surface 212 can present a ring-shaped lighting effect after being deflected by the light distribution element 22, which can enhance the uniqueness and aesthetics of the vehicle headlight.

[0100] In some possible implementations, the light guide element 21 and the light distribution element 22 can be different colors. For example, the light guide element 21 can have a bright color (such as red, orange, amber, etc.); the light distribution element 22 can be white, silver, etc. In this case, even if the lighting device 1 is not lit, under the influence of natural light, when a user observes the lighting device 1, they may still observe something like... Figure 3 The effect shown is different from when light device 1 is lit. The difference is that graphics A and B are dimmer and have lower brightness.

[0101] In this embodiment, when the light guide element and the light distribution element are of different colors, the lighting device can present a unique and beautiful appearance under the action of natural light source even when it is not lit, which can enhance the uniqueness and aesthetics of the vehicle lights.

[0102] In some possible implementations, within a first region in the width direction of the lighting device 1, the light distribution element 22 may include a first reflective region formed by a convex structure 224 and a second reflective region formed by a concave structure 223. The first reflective region can be used to deflect a first portion of the second light ray emitted from the light-emitting surface 212 and emit it along a first direction, and to deflect a second portion of the second light ray emitted from the light-emitting surface 212 and emit it along a third direction. The second reflective region can be used to deflect the light ray that has been deflected by the first reflective region and emitted along a third direction, and then emit it along the first direction. For example, in the width direction, the middle region of the light distribution element 22 (such as cross-section AA and its surrounding area) can be used as an example of the first region.

[0103] In some possible implementations, within a first region in the width direction of the lighting device 1, the light distribution element 22 may include a third reflective region. The third reflective region is used to deflect a third portion of the second light emitted from the light-emitting surface 212 at least once before it is emitted along the first direction.

[0104] For example, in the width direction of the lighting device 1, the first region may be closer to the middle part of the concave structure 223 than the second region.

[0105] by Figure 2 Sections AA and CC in the middle Figure 3 Taking graphic B as an example, the following is combined with... Figure 4The arrangement of the first reflection area, the second reflection area, and the third reflection area is illustrated by example.

[0106] For example, Figure 4 This is a schematic diagram of a light propagation path provided in an embodiment of this application.

[0107] like Figure 4 As shown in (a), since the reflecting area A is composed of a convex structure 224, the light emitted from the light-emitting surface 212, after being reflected by the reflecting area A, can be partially emitted directly to the outside of the lighting device 1, and partially emitted to the concave structure 223. The reflecting area B, composed of the concave structure 223, can reflect this portion of the light emitted from the reflecting area A, enabling this portion of the light to be emitted towards the outside of the lighting device 1. In this case, the reflecting area A can be considered as an example of a first reflecting area, and the reflecting area B can be considered as an example of a second reflecting area.

[0108] like Figure 4 As shown in (b), the light emitted from the light-emitting surface 212, after one or more reflections in the reflection area C, can be emitted to the outside of the lighting device 1. Since the cross-sections CC and AA are in different positions, the light emitted from the light-emitting surface 212 and incident on the reflection area A, and the light emitted from the light-emitting surface 212 and incident on the reflection area C, can be different parts corresponding to the second light ray.

[0109] In one embodiment, the reflective regions A / B / C may be formed by the surface 222 of the light distribution element 22. In this case, the light propagates within the light distribution element 22 (i.e., between surfaces 221 and 222) during its propagation.

[0110] In another embodiment, the reflective regions A / B / C can be formed by the surface 221 of the light distribution element 22. When the reflective regions A / B / C are formed by the surface 221, the light does not need to propagate within the light distribution element 22. This reduces the design complexity of the light distribution element 22.

[0111] like Figure 4 As shown in (c), graphic B can be composed of multiple parts, such as graphics B-1 to B-4; wherein graphics B-1 and graphics B-2 are separated from each other in the height direction of the lighting device 1. For example, graphics B-1 and graphics B-2 can correspond to the first area; graphics B-3 and graphics B-4 can correspond to the second area.

[0112] In one embodiment, for cross section AA, the light rays emitted from the outside of the lighting device 1 after being reflected by the reflection area A can form pattern B-1; the light rays emitted from the outside of the lighting device 1 after being reflected by the reflection area B can be used to form pattern B-2.

[0113] In another embodiment, for cross section CC, the light rays emitted towards the outside of the lighting device 1 after one or more reflections by the reflecting area C can form pattern B-3. The formation method of pattern B-4 is similar to that of pattern B-3, and will not be described again here.

[0114] In this embodiment, based on the setting of the reflective areas within the first region, the light emitted from the first and second reflective areas can respectively constitute the upper and lower parts of the ring-shaped lighting effect. Based on the setting of the reflective areas within the second region, the light emitted after one or more reflections by the third reflective area can constitute the part of the ring-shaped lighting effect that is connected in the second direction.

[0115] In some possible implementations, the light distribution element 22 can be positioned below the light guide element 21. In the height direction of the lighting device, the distance between the light-emitting surface 212 and the first reflective area can be less than or equal to 100 mm. For example, as... Figure 5 As shown in (a), on section AA, the distance (denoted as D) between the light-emitting surface 212 and the reflecting area A can be 70 or 80 mm, or the distance can be any other value less than 100 mm.

[0116] In real-world scenarios, when the distance between the light-emitting surface 212 and the first reflective area is large, the lighting effect observed by the observer will be relatively dim. In this embodiment, the distance between the light-emitting surface 212 and the first reflective area is less than or equal to 100 mm, which ensures the clarity of the lighting effect of the lighting device 1 and helps to improve the quality of the lighting effect.

[0117] In some possible implementations, the light distribution element 22 can be positioned below the light guide element 21. In a cross-section perpendicular to the width of the lighting device, the curvature of the end of the first reflective region furthest from the light-emitting surface 212 can be greater than the curvature of the end of the first reflective region closest to the light-emitting surface 212. For example, as... Figure 5 As shown in (a), on section AA, the radius of curvature R4 can be greater than the radius of curvature R5; correspondingly, the curvature of the reflecting region A at the radius of curvature R5 is greater than its curvature at the radius of curvature R4.

[0118] In real-world scenarios, vehicle headlights are often positioned below eye level. Taking section AA as an example, if the radius of curvature R4 is less than or equal to the radius of curvature R5, the observer needs to be relatively close to the lighting device 1 to observe the ring-shaped lighting effect, thus reducing their perception of the lighting effect.

[0119] In this embodiment, when the curvature of the end of the first reflective region away from the light-emitting surface 212 is greater than the curvature of the end of the first reflective region closer to the light-emitting surface 212, users / other traffic participants can observe the unique lighting effect of the lighting device even when they are far away from it. This method enhances the observer's perception of the lighting effect.

[0120] In some possible implementations, within a first region in the width direction of the lighting device 1, on a cross section perpendicular to the width direction of the lighting device 1, the maximum value of the curvature of the concave structure 223 can be greater than the minimum value of the curvature of the convex structure 224.

[0121] For example, assuming that on section AA, the concave structure 223 has the largest curvature at the radius of curvature R2, and the convex structure 224 has the smallest curvature at the radius of curvature R4; in order to avoid excessive divergence of light emitted from the second reflection region, on this section, the curvature of the concave structure 223 at the radius of curvature R2 can be greater than the curvature of the convex structure 224 at the radius of curvature R4.

[0122] In the embodiments of this application, by setting the curvature of the concave and convex structures, the situation where the lighting effect is not obvious due to excessive dispersion of light emitted from the second reflection area can be avoided.

[0123] In some possible implementations, the light distribution element 22 can be positioned below the light guide element 21. In a cross-section along the width of the lighting device 1, the curvature of the concave structure 223 at the first position can be greater than the curvature of the concave structure 223 at the second position, and the curvature of the concave structure 223 at the first position can be greater than the curvature of the concave structure 223 at the third position. Furthermore, in the height direction of the lighting device, the distance between the first position and the light-emitting surface 212 can be greater than the distance between the second position and the light-emitting surface 212, and the distance between the first position and the light-emitting surface 212 can be less than the distance between the third position and the light-emitting surface 212.

[0124] For example, such as Figure 5As shown in (a), the radius of curvature R2 can be smaller than the radius of curvature R1, and the radius of curvature R2 can be smaller than the radius of curvature R3; correspondingly, the curvature at the position corresponding to R2 is greater than the curvature at the position corresponding to R1, and the curvature at the position corresponding to R2 is greater than the curvature at the position corresponding to R3. In this case, the position corresponding to R2 can be considered as an example of the first position, the position corresponding to R1 can be considered as an example of the second position, and the position corresponding to R3 can be considered as an example of the third position.

[0125] In real-world scenarios, when the radius of curvature R2 is less than or equal to R1 and R3, the distance between graphics B-1 and B-2 is relatively short. This results in a smaller hollow portion of the annular lighting effect, leading to lower perception of the hollow portion by users or other traffic participants, and potentially causing the annular pattern to be misidentified as a circular pattern. In this embodiment, by setting the curvature at the first to third positions on a cross-section perpendicular to the width of the lighting device, the hollow area of ​​the annular lighting effect can be made more prominent, improving user perception of the lighting effect and enhancing its aesthetics and uniqueness.

[0126] In some possible implementations, the curvature of the second concave shape in the second region can be greater than its curvature in the first region in the width direction of the lighting device 1. Alternatively, in a cross-section perpendicular to the height direction of the lighting device 1, the curvature of the concave structure 223 in the second region can be greater than its curvature in the first region.

[0127] In one embodiment, such as Figure 5 As shown in (b), region #1 can be used as an example of the first region, and regions #2 and #3 can be used as examples of the second region. The radii of curvature R6 and R7 can be used as examples of the radii of curvature at a certain location within the first and second regions, respectively. For example, the radius of curvature R6 can be greater than R7; correspondingly, on this cross section BB, the curvature of the concave structure 223 at R6 can be less than its curvature at R7.

[0128] In real-world scenarios, when the radius of curvature R6 is less than or equal to R7, the distance between graphics B-3 and B-4 is relatively short. This results in a smaller hollow portion of the annular pattern in the ring-shaped lighting effect, leading to lower perception of the hollow portion by users / other traffic participants, and potentially causing them to misidentify the annular pattern as a circular pattern. In this embodiment, by setting the curvature of the first and second regions on a cross-section perpendicular to the height of the lighting device, the hollow region of the annular lighting effect can be made more prominent, improving user perception of the lighting effect and enhancing its aesthetics and uniqueness.

[0129] For example, the lighting device 1 can be a type of vehicle light or light signaling device such as fog lights, side marker lights, front / rear position lights, reversing lights, parking lights, turn signals, and brake lights. When the lighting device 1 is a different type of vehicle light, it needs to emit a specified color of light when illuminated to meet regulatory requirements. For example, when the lighting device 1 is a brake light, symbols 1 and 2 can appear red; when it appears as... Figure 2 When illuminated as shown, it can indicate to other road users that the vehicle is braking. For example, when lighting device 1 is a turn signal, graphics 1 and 2 can be displayed in amber; when displayed as... Figure 2 When the illumination effect is displayed, it can indicate to other road users that the vehicle is about to / is turning.

[0130] In some possible implementations, the light distribution element 22 may have a semi-transparent and semi-reflective film on surface 221 or surface 222. For example, the reflectivity of the semi-transparent and semi-reflective film may be 40% to 60%, and the transmittance may be 40% to 60%. Alternatively, optical elements such as a light source module or other light distribution elements may be disposed behind the light distribution element 22 (e.g., in the space between surface 222 and lamp housing 11). By providing the semi-transparent and semi-reflective film, light emitted from these optical elements can be allowed to pass through the light distribution element 22.

[0131] In some embodiments, semi-transparent and semi-reflective films with other reflectivities / transmittances may also be used.

[0132] In this embodiment, on the one hand, the reflective effect of the semi-transparent and semi-reflective film can achieve the deflection effect of light; on the other hand, when optical elements are arranged behind the light distribution element 22, the light emitted from these optical elements can be emitted to the outside of the lighting device 1 through the light distribution element 22 under the light transmission effect of the semi-transparent and semi-reflective film. By setting the semi-transparent and semi-reflective film, both a ring lighting effect and the superposition / coupling with other lighting effects can be achieved.

[0133] The above combination Figures 1 to 5 This section introduces a lighting device that can create a ring-shaped lighting effect. The following section combines... Figures 6 to 9 This section introduces lighting installations that can create alternative lighting effects. Different lighting effects can be implemented individually or in combination.

[0134] For example, Figure 6 This is a schematic diagram of another lighting device provided in an embodiment of this application. For example... Figure 6 As shown, the lighting device 2 may include a light distribution element 32, a light distribution element 33, and a light source module 35.

[0135] The light source module 35 can generate light. For example, the light source module 35 can be provided with one or more light-emitting elements 351 (such as LED beads). For another example, the light source module 35 can also include a reflective surface 352, which can scatter / reflect light incident on the reflective surface, guiding light that would not originally reach the light distribution element 33 to the light distribution element 33 through the scattering / reflection of the reflective surface 352, thereby improving the utilization rate of light.

[0136] Light distribution element 32 and light distribution element 33 can be disposed in the propagation path of light, and light distribution element 33 can be disposed between light distribution element 32 and light source module 35. For example, light emitted from light source module 35 can propagate to light distribution element 32 through light distribution element 33.

[0137] For example, both light distribution element 32 and light distribution element 33 may be provided with a semi-transparent and semi-reflective film. For ease of distinction, the semi-transparent and semi-reflective film provided on light distribution element 32 may be referred to as the first semi-transparent and semi-reflective film, and the semi-transparent and semi-reflective film provided on light distribution element 33 may be referred to as the second semi-transparent and semi-reflective film.

[0138] For example, a semi-transparent and semi-reflective film is provided on the light-incident surface 322 or the light-exiting surface 321 of the light-distributing element 32. As another example, a semi-transparent and semi-reflective film is provided on the light-incident surface 332 or the light-exiting surface 331 of the light-distributing element 33.

[0139] Assuming a semi-transparent and semi-reflective film is provided on surface 331 of light distribution element 33, and assuming a semi-transparent and semi-reflective film is provided on surface 321 of light distribution element 32, the following combines... Figure 7 Introduce the lighting effect of lighting device 2.

[0140] like Figure 7 As shown, for object A, virtual image 1 can be generated under the reflection of light-emitting surface 321; virtual image 1 can generate virtual image 2 under the reflection of light-emitting surface 331; virtual image 2 can generate virtual image 3 under the reflection of light-emitting surface 321; virtual image 3 can generate virtual image 4 under the reflection of light-emitting surface 331, and so on.

[0141] When an observer observes object A, what they perceive may be a virtual image of object A. That is, the light emitted from object A, after multiple reflections between the two reflecting surfaces, can produce a depth effect. Similarly, the light emitted from the light source module 35, after passing through the light distribution element 33, can be reflected multiple times between the two reflecting surfaces, producing a depth effect.

[0142] In this embodiment, by providing semi-transparent and semi-reflective films on the light distribution elements 32 and 33 respectively, the light emitted from the light source module 35 can undergo multiple reflections between the first and second semi-transparent and semi-reflective films. Even if the distance between the light distribution elements 32 and 33 is small, a depth-of-field lighting effect can still be produced. In particular, when the lighting device 2 can produce personalized patterns such as text and starry skies, the depth-of-field lighting effect can make the personalized pattern more vivid and enhance the quality of the lighting device.

[0143] For example, the surface of the light distribution element 32 where the first semi-reflective and semi-transparent film is disposed can be referred to as the third surface, and the surface of the light distribution element 33 where the second semi-reflective and semi-transparent film is disposed can be referred to as the fourth surface. For example, the third surface can be surface 321 or surface 322; the fourth surface can be surface 331 or surface 332.

[0144] In some possible implementations, the exit angle of light rays exiting the third surface can be different from the exit angle of light rays exiting the fourth surface. For example, by adjusting the curvature of the surface on which the semi-transparent and semi-reflective film is located, it is possible to achieve a different exit angle of light rays exiting the third surface from the exit angle of light rays exiting the fourth surface.

[0145] In one embodiment, it is assumed that a semi-transparent and semi-reflective film is provided on surface 331 of light distribution element 33, and a semi-transparent and semi-reflective film is provided on surface 321 of light distribution element 32. For example, when one of surface 331 and surface 321 is curved and the other is planar, the angle between the ray emitted from surface 331 and the normal of surface 331 may be different from the angle between the ray emitted from surface 321 and the normal of surface 321. As another example, when both surface 331 and surface 321 are curved, the emission angle of any ray emitted from surface 331 may be different from the emission angle of the ray emitted from surface 321 when their curvatures are different. As yet another example, when both surface 331 and surface 321 are curved, a point with a certain curvature on surface 331 and a point with a corresponding curvature on surface 321 may be misaligned in the height or width direction, thereby enabling the two emission angles to be different.

[0146] If the angle of light exiting the third surface is equal to the angle of light exiting the fourth surface, the light intensity perceived by the observer will be relatively small. In this embodiment, the angle of light exiting the first surface is different from the angle of light exiting the second surface, which helps to improve the quality of the depth lighting effect.

[0147] In some possible implementations, the first semi-transparent and semi-reflective film and the second semi-transparent and semi-reflective film are disposed within a first range in the width direction of the lighting device 2 and within a second range in the height direction of the lighting device 2. The angle between the first surface and the first horizontal line may be different from the angle between the second surface and the first horizontal line. Specifically, in the width direction of the lighting device 2, the first horizontal line is within the first range and parallel to the width direction, and the height of the first horizontal line is within the second range.

[0148] The following combination Figure 8 An example is provided to illustrate the angle between the third / fourth surface and the first horizontal line.

[0149] Assume that surfaces 331 and 321 are each provided with a semi-transparent, semi-reflective film. For example... Figure 8 As shown, the area occupied by the semi-transparent and semi-reflective film disposed on surface 331 in the height direction can be range #1 or exceed range #1; similarly, the area occupied by the semi-transparent and semi-reflective film disposed on surface 321 in the height direction can be range #1 or exceed range #1. This range #1 can correspond to the first range.

[0150] Horizontal line #1 can be any horizontal line within range #1, and this horizontal line can pass through the two semi-transparent and semi-reflective films respectively disposed on surfaces 331 and 321. The angle formed by horizontal line #1 and surface 331 can be different from the angle formed by horizontal line #1 and surface 321. For example, if surface 331 is obtained by replicating the shape of surface 321 (i.e., the two have the same shape), surface 331 can be misaligned relative to surface 321 in the width or height direction, so that the angle formed by horizontal line #1 and surface 331 can be different from the angle formed by horizontal line #1 and surface 321. As another example, when one of surfaces 331 and 321 is a plane and the other is a curved surface, the angle formed by horizontal line #1 and surface 331 can be different from the angle formed by horizontal line #1 and surface 321.

[0151] If the angle between the first horizontal line and the third surface is equal to the angle between the first horizontal line and the fourth surface, the light intensity perceived by the observer will be relatively small. In this embodiment, by reasonably setting the angles between the first horizontal line and the third and fourth surfaces, the quality of the depth lighting effect can be improved.

[0152] In some possible implementations, the light distribution element 33 may have a light-blocking area and a light-transmitting area on its light-incident surface 332, such as... Figure 9As shown. Light emitted from the light source module 35, when passing through the light-transmitting area of ​​the light-incident surface 332, can propagate through the light-distributing element 33 to the light-distributing element 32. Light emitted from the light source module 35, when illuminating the light-shielding area of ​​the light-incident surface 332, will be blocked by the light-shielding area and cannot propagate to the light-distributing element 32. For example, the aforementioned light-shielding area and light-transmitting area can be achieved through processes such as laser engraving, spray painting, and film application.

[0153] In one embodiment, when a personalized graphic is formed in the light-transmitting area, the lighting device 2 will present a personalized graphic with a sense of depth when illuminated. For example, when the light-transmitting area forms a text pattern, it will present text with a sense of depth. As another example, when the light-receiving surface 322 is provided with multiple randomly distributed light-transmitting areas, if the size of each light-transmitting area is less than a certain threshold (e.g., 0.5mm, 1mm, etc.), the lighting device will be able to present a starry sky effect with a sense of depth when illuminated.

[0154] In this embodiment, by setting up light-blocking and light-transmitting areas, personalized graphics such as text and starry skies can be formed. Because this lighting device can produce a depth-of-field lighting effect, it makes personalized patterns such as starry skies and text more vivid, further enhancing the uniqueness and aesthetics of the lighting device.

[0155] The above combination Figures 6 to 9 This section introduces lighting installations that can create a sense of depth through illumination. The following section combines... Figure 10 and Figure 11 This section introduces a lighting device that can produce an alternative lighting effect. The different lighting effects described above can be implemented individually or in combination.

[0156] For example, Figure 10 This is a schematic diagram of another lighting device provided in an embodiment of this application. For example... Figure 7 As shown, the lighting device 3 may include a light distribution element 44 and a light source module 45.

[0157] Similar to light source module 35, light source module 45 can generate light. Light source module 45 may include a light-emitting element 451 and a reflective surface 452.

[0158] The light distribution element 44 can be disposed in the path of light propagation. In the light emission direction of the lighting device 3, the light distribution element 44 may include an incident light surface 442 and an emitting light surface 441 disposed opposite to each other. The emitting light surface 441 may be provided with a protruding emitting light portion, which has a polyhedral structure.

[0159] In one embodiment, views of the light-distributing element 44 at different angles can be as follows: Figure 11 As shown in (a) of the diagram.

[0160] In yet another embodiment, such as Figure 11 As shown in (b), multiple light-emitting parts of random size and position can be provided on the light-emitting surface 441.

[0161] In this embodiment, by providing a protruding light-emitting part, when an observer views the lighting device from different angles, they can perceive different light intensities depending on the viewing angle. In other words, this method can achieve a multi-view angle-varying light intensity effect. In particular, when the lighting device 3 can produce personalized patterns such as text or starry skies, the light intensity variation effect can make the personalized patterns more vivid and enhance the perceived quality of the lighting device.

[0162] In some possible implementations, the lighting device 3 may further include a light distribution element 43, and a light distribution element 44 may be disposed between the light distribution element 43 and the light source 45. In the light emission direction of the lighting device 3, the light distribution element 43 may include an incident light surface 432 or an exit light surface 431 disposed opposite to each other. The incident light surface 432 or the exit light surface 431 may be provided with a light-blocking area and a light-transmitting area, such as... Figure 9 As shown.

[0163] In one embodiment, when personalized graphics such as text and starry sky are formed in the light-transmitting area, the lighting device can produce a multi-view light intensity effect, which can make the personalized patterns such as starry sky and text more vivid, and further enhance the uniqueness and aesthetics of the lighting device.

[0164] The above combination Figures 1 to 11 Different lighting devices with different lighting effects were introduced. The following provides an example of how different lighting effects can be combined.

[0165] In one embodiment, the lighting effect of the lighting device 1 can be coupled with the lighting effect of the lighting device 3. For example, a light source 45 and a light distribution element 44 can be provided in the lighting device 1; in this case, a semi-transparent and semi-reflective film can also be provided on the surfaces 221 and 222 of the light distribution element 22. For another example, when personalized graphics such as text or starry skies are required, a semi-transparent and semi-reflective film can be provided on surface 221, and a light-blocking area and a light-transmitting area can be provided on surface 222. Thus, it is unnecessary to provide a light distribution element 43 containing both a light-blocking area and a light-transmitting area in the lighting device 1, thereby achieving cost savings.

[0166] In another embodiment, the lighting effect of the lighting device 2 can be coupled with the lighting effect of the lighting device 3. For example, a light distribution element 44 can be provided in the lighting device 2, and the light distribution element 44 can be positioned between the light distribution element 33 and the light source module 35. For another example, when it is necessary to generate personalized graphics such as text or starry skies, a semi-transparent and semi-reflective film can be provided on the surface 331, and a light-blocking area and a light-transmitting area can be provided on the surface 332.

[0167] In another embodiment, the lighting effect of lighting device 1 can be coupled with the lighting effect of lighting device 2. For example, a light source module 35 and a light distribution element 33 can be added to lighting device 1, and the light distribution element 33 can be disposed between the light distribution element 22 and the light source module 35; correspondingly, a semi-transparent and semi-reflective film can be provided on the surface 221 / 222 of the light distribution element 22. In this case, the light distribution element 22 can correspond to the light distribution element 32, which helps to reduce the number of parts in the lighting device and achieves the effect of cost saving.

[0168] The following combination Figure 12 The following is an example illustrating the combination of the three lighting effects described above.

[0169] For example, Figure 12 This is a schematic diagram of another lighting device provided in an embodiment of this application. For example... Figure 12 As shown in (a), the lighting device 4 may include a light guide element 51, a light distribution element 52, a light distribution element 53, a light distribution element 54 and a light source module 55.

[0170] The light guide element 51 can correspond to the light guide element 21 and can have light emitting surfaces 511 and 512.

[0171] In one embodiment, the light distribution element 52 may correspond to the light distribution element 22 and may be positioned on the propagation path of the light emitted from the light-emitting surface 511. The light distribution element 52 may have a concave structure and a patterned structure, and in combination with the light guide element 51, it can provide a ring-shaped lighting effect.

[0172] In another embodiment, light distribution element 52 can correspond to light distribution element 32, and a semi-transparent and semi-reflective film can be provided on the light-emitting surface 521 or the light-incident surface 522. Correspondingly, light distribution element 53 can correspond to light distribution element 33, and a semi-transparent and semi-reflective film can be provided on its surface 531. Thus, a lighting effect with a sense of depth can be presented.

[0173] The light distribution element 54 can correspond to the light distribution element 44, and can have a protruding light-emitting part provided on the light-emitting surface 541 to provide a lighting effect with variable light intensity from multiple viewing angles. For example, the light distribution element 53 can also correspond to the light distribution element 43, and can have a light-blocking area and a light-transmitting area provided on the light-incident surface 532.

[0174] Light source module 55 can correspond to light source module 35 and / or 45.

[0175] For example, similar to lighting device 1, lighting device 4 may also include a lamp housing 11 and a lampshade 12. In one example, Figure 12 (b) shows an exploded view of some components of the lighting device 4.

[0176] The lighting effect of the aforementioned lighting device 4 can be understood as a combination of ring-shaped lighting, depth-sensing lighting, and multi-view adjustable brightness lighting. For example, when the light distribution element 54 is removed, the lighting effect of the lighting device 4 will only couple the ring-shaped lighting and depth-sensing lighting effects. Similarly, when the light distribution element 53 is removed, the lighting effect of the lighting device 4 will only couple the ring-shaped lighting and multi-view adjustable brightness lighting effects. And again, when the light guide element 51 is removed, the lighting effect of the lighting device 4 will only couple the depth-sensing lighting and multi-view adjustable brightness lighting effects.

[0177] The above examples illustrate the structure of the lighting devices (1, 2, 3, 4) in different application scenarios.

[0178] For example, a lighting device may include multiple light-emitting elements, which may be distributed in different areas of the lighting device. The lighting device may include one or more light-emitting methods. For example, one or more of the following: a light-emitting method preset at the factory, a light-emitting method set by the user, or a light-emitting method indicated by the user.

[0179] In one embodiment, in light emission mode #1, at least one of the plurality of light-emitting elements is capable of continuously emitting light in a corresponding order and at corresponding times.

[0180] In another embodiment, in light emission mode #2, at least one of the plurality of light-emitting elements is able to flash at a certain frequency in a corresponding order at a corresponding time.

[0181] In another embodiment, in light emission mode #3, at least one of the plurality of light-emitting elements can be lit sequentially in a corresponding order.

[0182] The above-mentioned light emission methods #1 to #3 are just examples. There are other light emission methods, which will not be listed here.

[0183] For example, for the lighting device 2, when the light-transmitting area of ​​the light-distributing element 33 can form personalized patterns such as text or starry sky, the lighting device can be controlled to emit light in different ways to provide a richer and more vivid lighting effect.

[0184] This application also provides a vehicle that includes any of the above-described possible lighting devices.

[0185] The vehicles involved in this application embodiment are vehicles in a broad sense, which can be means of transportation (such as commercial vehicles, passenger cars, motorcycles, flying cars, trains, etc.), industrial vehicles (such as forklifts, trailers, tractors, etc.), engineering vehicles (such as excavators, bulldozers, cranes, etc.), agricultural equipment (such as lawnmowers, harvesters, etc.), amusement equipment, toy vehicles, etc. This application embodiment does not specifically limit the type of vehicle. For example, the vehicles in this application can include pure electric vehicles (pure EV / battery EV), hybrid electric vehicles (HEV), range-extended electric vehicles (REEV), plug-in hybrid electric vehicles (PHEV), or new energy vehicles (NEV), etc.

[0186] In the several embodiments provided in this application, it should be understood that the embodiments described above are merely illustrative. For example, the division of modules is only a logical functional division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.

[0187] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A lighting device (1), characterized in that, include: Light guide element (21) and first light distribution element (22). The light guide element (21) includes a first light-emitting surface (211) and a second light-emitting surface (212). The first light-emitting surface (211) is used to emit a first light beam along a first direction, and the second light-emitting surface (212) is used to emit a second light beam along a second direction. The first direction and the second direction are different, and the first direction faces the outside of the lighting device. The first light distribution element (22) is disposed on the propagation path of the second light ray emitted from the second light emitting surface (212), and is used to deflect the second light ray emitted from the second light emitting surface (212) and emit it along the first direction. The first light distribution element (22) is provided with a concave structure (223) and a convex structure (224). In the width direction of the lighting device (1), the concave structure (223) presents a first concave shape; In the second direction, the concave structure (223) is a second concave shape, and the end of the concave structure (223) away from the second light-emitting surface (212) is connected to the convex structure (224).

2. The lighting device (1) according to claim 1, characterized in that, Within a first region in the width direction of the lighting device (1), the first light distribution element (22) includes a first reflective region formed by the convex structure (224) and a second reflective region formed by the concave structure (223). The first reflective area is used to: deflect a first portion of the second light ray emitted from the second light-emitting surface (212) and emit it along the first direction, and deflect a second portion of the second light ray emitted from the second light-emitting surface (212) and emit it along a third direction; The second reflective area is used to deflect light rays that have been deflected by the first reflective area and emitted along the third direction, so that the light rays are emitted along the first direction.

3. The lighting device (1) according to claim 2, characterized in that, Within a second region in the width direction of the lighting device (1), the first light distribution element (22) includes a third reflective region. The third reflection region is used to: deflect a third portion of the second light ray emitted from the second light-emitting surface (212) at least once and then emit it along the first direction.

4. The lighting device (1) according to claim 3, characterized in that, Compared to the second region, the first region is closer to the middle part of the first concave shape.

5. The lighting device (1) according to claim 3 or 4, characterized in that, In a cross section perpendicular to the height direction of the lighting device (1), the curvature of the concave structure (223) in the second region is greater than the curvature of the concave structure (223) in the first region.

6. The lighting device (1) according to any one of claims 2 to 4, characterized in that, Within a first region in the width direction of the lighting device (1), on a cross section perpendicular to the width direction of the lighting device (1), the maximum value of the curvature of the concave structure (223) is greater than the minimum value of the curvature of the convex structure (224).

7. The lighting device (1) according to any one of claims 2 to 4, characterized in that, The first light distribution element (22) is disposed below the light guide element (21). In the height direction of the lighting device (1), the distance between the second light-emitting surface (212) and the first reflective area is less than or equal to 100 mm.

8. The lighting device (1) according to any one of claims 2 to 4, characterized in that, The first light distribution element (22) is disposed below the light guide element (21). On the cross section perpendicular to the width direction of the light device (1), the curvature of the first reflective area away from the second light-emitting surface (212) is greater than the curvature of the first reflective area near the second light-emitting surface (212).

9. The lighting device (1) according to any one of claims 2 to 4, characterized in that, The first light distribution element (22) is disposed below the light guide element (21). In a cross section perpendicular to the width direction of the lighting device (1), the curvature of the concave structure (223) at the first position is greater than the curvature of the concave structure (223) at the second position, and the curvature of the concave structure (223) at the first position is greater than the curvature of the concave structure (223) at the third position. In the height direction of the lighting device (1), the distance between the first position and the second light-emitting surface (212) is greater than the distance between the second position and the second light-emitting surface (212), and the distance between the first position and the second light-emitting surface (212) is less than the distance between the third position and the second light-emitting surface (212).

10. The lighting device (1) according to any one of claims 1 to 4, characterized in that, The color of the first light distribution element (22) is different from the color of the light guide element (21).

11. The lighting device (1) according to any one of claims 1 to 4, characterized in that, The first light distribution element (22) includes a first surface (221) and a second surface (222) disposed opposite to each other. The first surface (221) faces the outside of the light device (1), and the first surface (221) or the second surface (222) is provided with a semi-transparent and semi-reflective film.

12. The lighting device (1) according to any one of claims 1 to 4, characterized in that, The lighting device (1) also includes a light source module (45) and a second light distribution element (44). The light source module (45) is used to generate a third ray; The first light distribution element (22) and the second light distribution element (44) are disposed on the propagation path of the third light ray, and the second light distribution element (44) is disposed between the first light distribution element (22) and the light source module (45); The second light distribution element (44) includes a first light-incident surface (442) and a third light-outceasing surface (441) arranged opposite to each other in the light-outceasing direction of the light device (1). The third light-outceasing surface (441) is provided with a plurality of protruding light-outceasing portions, and the protruding light-outceasing portions are polyhedral structures.

13. The lighting device (1) according to claim 11, characterized in that, The second surface (222) is provided with a light-shielding area and a light-transmitting area.

14. The lighting device (1) according to claim 13, characterized in that, The light-transmitting area disposed on the second surface (222) constitutes text or graphics; or, The second surface (222) includes a plurality of light-transmitting areas, which are randomly distributed on the second surface (222), and the size of each of the plurality of light-transmitting areas is less than or equal to a second threshold.

15. A lighting device, characterized in that, include: Light guide element and first light distribution element, The light guide element includes a first light-emitting surface and a second light-emitting surface. The first light-emitting surface is used to emit a first light beam along a first direction, and the second light-emitting surface is used to emit a second light beam along a second direction. The first direction and the second direction are different, and the first direction faces the outside of the lighting device. The first light distribution element is disposed on the propagation path of the second light emitted from the second light emitting surface, and is used to deflect the second light emitted from the second light emitting surface and emit it along the first direction; The first light distribution element is provided with a concave structure and a convex structure; In the width direction of the lighting device, the concave structure presents a first concave shape; in the second direction, the concave structure presents a second concave shape, and the end of the concave structure away from the second light-emitting surface is connected to the convex structure. The lighting device also includes: a light source module and a fourth light distribution element. The light source module is used to generate a third ray; The first light distribution element and the fourth light distribution element are disposed on the propagation path of the third light ray, and the fourth light distribution element is disposed between the first light distribution element and the light source module; The first light distribution element is provided with a first semi-transparent and semi-reflective film, and the fourth light distribution element is provided with a second semi-transparent and semi-reflective film.

16. The lighting device according to claim 15, characterized in that, The lighting device also includes a second light distribution element. The second light distribution element is disposed on the propagation path of the third light ray, and the second light distribution element is disposed between the fourth light distribution element and the light source module; The second light distribution element includes a first light-incident surface and a third light-emitting surface arranged opposite to each other in the light-emitting direction of the lighting device. The third light-emitting surface is provided with a plurality of protruding light-emitting portions, and the protruding light-emitting portions are polyhedral structures.

17. The lighting device according to claim 15 or 16, characterized in that, The fourth light distribution element includes a third light-incident surface and a fifth light-exit surface disposed opposite to each other in the light-exit direction of the lighting device. The second semi-transparent and semi-reflective film is disposed on the fifth light-exit surface. The third light-incident surface of the fourth light distribution element is provided with a light-blocking area and a light-transmitting area.

18. The lighting device according to claim 17, characterized in that, The light-transmitting area set on the third light-incident surface constitutes text or graphics; or, The third light-incident surface includes multiple light-transmitting areas, which are randomly distributed on the third light-incident surface, and the size of each of the multiple light-transmitting areas is less than or equal to the second threshold.

19. A vehicle, characterized in that, Includes the lighting device as described in any one of claims 1 to 18.

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