Lamplight device and vehicle

Abstract

The invention provides a light device. 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 the propagation path of the light emitted by the second light emitting face and used for deflecting the light emitted by the light emitting face and then emitting the light towards the outside of the lamplight device. Wherein the first light distribution element is provided with a concave structure and a convex structure, and in the width direction of the lamplight device, the concave structure is in a first concave shape; in the second direction, the concave structure is in a second concave shape, and the end, away from the second light emitting face, of the concave structure is connected with the convex structure. The embodiment of the invention can be applied to an intelligent automobile or a new energy automobile, in the technical scheme, the concave structure and the convex structure are arranged on the light distribution element, so that the lighting device can present an annular lighting effect, and the uniqueness and the attractiveness of the automobile lamp can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle lamps, and more particularly, to a lighting device and a vehicle. Background Art

[0002] With the development of vehicle technology, in the case where vehicle lamps are required to meet lighting functions / indicating functions (such as turning and braking), vehicle manufacturers and users are increasingly concerned about the aesthetics and uniqueness of the shapes of vehicle lamps, and the shapes of vehicle lamps on the market are becoming more and more diverse.

[0003] The lighting effect of vehicle lamps is an important aspect for evaluating the aesthetics of vehicle lamps. At present, the structure of vehicle lamps is often designed mainly with the idea of meeting regulatory requirements and luminous uniformity, resulting in a single lighting effect of vehicle lamps, which is difficult to reflect brand characteristics and personalized needs. Even after being lit, the aesthetics of vehicle lamps may deteriorate. Summary of the Invention

[0004] The present application provides a lighting device and a vehicle. The lighting device can have a unique and beautiful lighting effect, and can improve the uniqueness and aesthetics of vehicle lamps.

[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 for emitting first light along a first direction, and the second light-emitting surface (212) is used for emitting second light 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 emitted from the second light-emitting surface (212), and is used for deflecting the second light emitted from the second light-emitting surface (212) and then emitting it along the first direction. Wherein, 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) presents a second concave shape, and one end of the concave structure (223) far from the second light-emitting surface (212) is connected to the convex structure (224).

[0006] In the present application, by providing the concave structure (223) and the convex structure (224) on the light distribution element (22), after the light beam emitted from the light-emitting surface (212) is deflected by the light distribution element (22), an annular lighting effect can be presented, which can improve the uniqueness and aesthetics of vehicle lamps.

[0007] In some possible implementation manners, within the range of the first region in the width direction of the lighting device (1), the first light distribution element (22) may include: a first reflection region formed by a convex structure (224) and a second reflection region formed by a concave structure (223). Among them, the first reflection region may be used for: deflecting a first part of the second light rays emitted from the second light-emitting surface (212) and emitting them along a first direction, and deflecting a second part of the second light rays emitted from the second light-emitting surface (212) and emitting them along a third direction. The second reflection region may be used for: deflecting the light rays emitted along the third direction after being deflected by the first reflection region and emitting them along the first direction.

[0008] In some possible implementation manners, within the range of the 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 for: deflecting a third part of the second light rays emitted from the second light-emitting surface (212) at least once and emitting them along the first direction.

[0009] In this application, based on the setting of the reflection regions within the first region range, the light rays emitted from the first reflection region and the second reflection region can respectively constitute the upper and lower two mutually separated parts in the annular lighting effect. Based on the setting of the reflection regions within the second region range, the light rays emitted after one to multiple reflections by the third reflection region can constitute the parts that are connected to each other in the second direction in the annular lighting effect.

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

[0011] In this application, by setting the curvatures of the concave structure and the convex structure, it is possible to avoid the situation where the lighting effect is not obvious due to excessive divergence of the light rays emitted from the second reflection region.

[0012] In some possible implementation manners, compared with the second region range, the first region range is closer to the middle part of the first concave.

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

[0014] In this application, in a cross-section perpendicular to the height direction of the lighting device, by setting the curvature of the first region range and the second region range, the hollow region of the annular lighting effect can be made more obvious, which is beneficial to improving the user's perception of the lighting effect and enhancing the aesthetics and uniqueness of the lighting effect.

[0015] In some possible implementation manners, 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 reflection region is less than or equal to 100 millimeters.

[0016] In an actual scenario, when the distance between the light-emitting surface (212) and the first reflection region 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 reflection region is less than or equal to 100 millimeters, which can ensure the clarity of the lighting effect of the lighting device (1) and is beneficial to improving the quality sense of the lighting effect.

[0017] In some possible implementation manners, the first light distribution element (22) can be 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 first reflection region at the end far from the second light-emitting surface (212) can be greater than the curvature of the first reflection region at the end close to the second light-emitting surface (212).

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

[0019] In some possible implementation manners, 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. Among them, 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, in a cross-section perpendicular to the width direction of the lighting device, by setting the curvature at the first position to the third position, the hollow area of the annular lighting effect can be made more obvious, which is beneficial to improving the user's perception of the lighting effect and enhancing the aesthetics and uniqueness of the lighting effect.

[0021] In some possible implementation manners, 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 have different colors, when the lighting device is not lit, it can also present a relatively unique and beautiful appearance under the action of natural light, which can improve the uniqueness and aesthetics of the vehicle lamp.

[0023] In some possible implementation manners, the first light distribution element (22) may include a first surface (221) and a second surface (222) arranged oppositely, and the first surface (221) may face the outside of the lighting device (1); a semi-transmissive and semi-reflective film may be provided on the first surface (221) or the second surface (222).

[0024] In this application, on the one hand, the reflection effect of the semi-transmissive and semi-reflective film can achieve the deflection effect of light; on the other hand, when other optical elements are provided behind the first light distribution element (22), the light emitted by 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-transmissive and semi-reflective film. By providing the semi-transmissive and semi-reflective film, both the annular lighting effect and the coupling with other lighting effects can be achieved.

[0025] In some possible implementation manners, the lighting device (1) may further include a light source module (45) and a second light distribution element (44). The light source module (45) is used to generate the third light; the first light distribution element (22) and the second light distribution element (43) may be arranged on the propagation path of the third light, and the second light distribution element (44) may be arranged 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 emitting surface (441) arranged oppositely in the light emitting direction of the lighting device (1); a plurality of protruding light emitting parts may be provided on the third light emitting surface (441), and the protruding light emitting parts may be polyhedron structures.

[0026] In this application, by providing the protruding light emitting parts, when an observer observes the lighting device from different perspectives, different light intensities can be felt as the perspective changes. That is to say, the effect of variable light intensity at multiple perspectives can be achieved in this way. In particular, when the lighting device can generate personalized patterns such as characters and starry skies, the variable light intensity effect can make the personalized pattern more vivid and improve the quality sense of the lighting device.

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

[0028] In the present application, by setting the light-shielding area and the light-transmitting area, the lighting device can generate personalized patterns such as characters and starry skies.

[0029] In some possible implementation manners, the light-transmitting area provided on the second surface (222) may form a character pattern; alternatively, the second surface (222) may include a plurality of light-transmitting areas, the plurality of light-transmitting areas are randomly distributed on the second surface (222), and the size of each light-transmitting area in the plurality of light-transmitting areas is less than or equal to a second threshold.

[0030] In the present application, when the light-transmitting area forms a character pattern, the lighting device can present a lit effect in the shape of characters; when the light-transmitting area includes a plurality of randomly distributed light-transmitting areas, the lighting device can present a lit effect in the shape of a starry sky.

[0031] In a second aspect, 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 configured to generate light; the third light distribution element (32) and the fourth light distribution element (33) are disposed on the light propagation path, 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-transmissive semi-reflective film, and the fourth light distribution element (33) is provided with a second semi-transmissive semi-reflective film.

[0032] In the present application, by respectively providing semi-transmissive semi-reflective films on the third light distribution element and the fourth light distribution element, the light emitted by the light source module can be reflected multiple times between the first semi-transmissive semi-reflective film and the second semi-transmissive semi-reflective film. Even if the distance between the two light distribution elements is small, a lit effect with a sense of depth can be generated. In particular, when the lighting device can generate personalized patterns such as characters and starry skies, the lit effect with a sense of depth can make the personalized pattern more vivid and can improve the quality sense of the lighting device.

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

[0034] If the exit angle when the light exits through the third surface is equal to the exit angle when the light exits through the fourth surface, the light intensity that the observer can perceive will be relatively small. In this application, the exit angle when the light exits through the first surface is different from the exit angle when the light exits through the second surface, which is beneficial to improving the quality of the depth-of-field lighting effect.

[0035] In some possible implementation manners, the first semi-transmissive semi-reflective film and the second semi-transmissive semi-reflective film can be arranged 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. Among them, 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 that the observer can perceive will be relatively small. In this application, by reasonably setting the angles between the first horizontal line and the third surface and the fourth surface, it is beneficial to improving the quality of the depth-of-field lighting effect.

[0037] In some possible implementation manners, the third light distribution element (32) can include a second light incident surface (322) and a fourth light exit surface (321) that are oppositely arranged in the light exit direction of the lighting device (2), and the first semi-transmissive semi-reflective film can be arranged on the fourth light exit surface (321) or the second light incident surface (322). The fourth light distribution element (33) can include a third light incident surface (332) and a fifth light exit surface (331) that are oppositely arranged in the light exit direction of the lighting device (2), and the second semi-transmissive semi-reflective film can be arranged on the fifth light exit surface (331).

[0038] For example, the surface with the first semi-transmissive semi-reflective film among the fourth light exit surface (321) and the second light incident surface (322) can correspond to the above-mentioned third surface. Another example is that when the second semi-transmissive semi-reflective film is arranged on the fifth light exit surface (331), the fifth light exit surface can correspond to the above-mentioned fourth surface.

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

[0040] In this application, through the arrangement of the light-shielding area and the light-transmitting area, the lighting device can generate personalized patterns such as characters and starry skies.

[0041] In some possible implementation manners, the light-transmitting regions disposed on the third light-incident surface (332) may form a text pattern; alternatively, the third light-incident surface (332) includes a plurality of light-transmitting regions randomly distributed on the third light-incident surface (332), and the size of each light-transmitting region among the plurality of light-transmitting regions is less than or equal to a second threshold value.

[0042] In this application, when the light-transmitting regions form a text pattern, the lighting device can present a text-like lighting effect; when the light-transmitting regions include a plurality of randomly distributed light-transmitting regions, the lighting device can present a starry sky-like lighting effect.

[0043] In some possible implementation manners, the lighting device (2) may further include a second light distribution element (44); the second light distribution element (44) may be disposed on the light propagation path, 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-emitting surface (441) oppositely disposed in the light-emitting direction of the lighting device (2); a plurality of protruding light-emitting portions may be disposed on the third light-emitting surface (441), and the protruding light-emitting portions may be polyhedral structures.

[0044] In this application, by providing the protruding light-emitting portions, when an observer observes the lighting device from different perspectives, different light intensities can be felt as the perspective changes. That is to say, the effect of variable light intensity at multiple perspectives can be achieved in this way. In particular, when the lighting device can generate personalized patterns such as text and starry sky, the effect of variable light intensity can make the personalized pattern more vivid and can improve the quality sense of the lighting device.

[0045] In a third aspect, 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 configured to emit first light rays in a first direction, and the second light-emitting surface (512) is configured to emit second light rays in a second direction, the first direction and the second direction being different, and the first direction facing the outside of the lighting device. The first light distribution element (52) is disposed on the propagation path of the second light rays emitted from the second light-emitting surface (512) and is configured to deflect the second light rays emitted from the second light-emitting surface (512) and then emit them in the first direction. Wherein, 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 presents as a first concave shape; in the second direction, the concave structure presents as a second concave shape, and one 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 configured to generate third light rays; the first light distribution element (52) and the fourth light distribution element (53) are disposed on the propagation path of the third light rays, 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-transmissive semi-reflective film, and the fourth light distribution element (53) is provided with a second semi-transmissive semi-reflective film.

[0046] Exemplarily, regarding the first light distribution element, reference may be made to the relevant descriptions in the above-mentioned first aspect and any possible implementation manners thereof. Regarding the fourth light distribution element, reference may be made to the relevant descriptions in the above-mentioned second aspect and any possible implementation manners thereof.

[0047] In some possible implementation manners, the lighting device (4) may further include a second light distribution element (54), the second light distribution element (54) may be disposed on the propagation path of the third light rays, and the second light distribution element (54) may be disposed 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-emitting surface (541) oppositely disposed in the light-emitting direction of the lighting device (4); the third light-emitting surface (541) may be provided with a plurality of protruding light-emitting portions, and the protruding light-emitting portions may be polyhedral structures.

[0048] Exemplarily, regarding the second light distribution element, reference may be made to the relevant descriptions in the above-mentioned first aspect or second aspect and any possible implementation manners thereof.

[0049] In some possible implementation manners, the fourth light distribution element (53) may include a third light incident surface (532) and a fifth light emitting surface (531) that are oppositely arranged in the light emitting direction of the lighting device (4); the second semi-transmissive and semi-reflective film may be disposed on the fifth light emitting surface (531), and a light shielding area and a light transmissive area may be provided on the third light incident surface (532) of the fourth light distribution element (53).

[0050] In some possible implementation manners, the light transmissive area provided on the third light incident surface (532) may form a character pattern; alternatively, the third light incident surface (532) may include a plurality of light transmissive areas, the plurality of light transmissive areas may be randomly distributed on the fourth light incident surface (442), and the size of each light transmissive area in the plurality of light transmissive areas may be less than or equal to a second threshold value.

[0051] In a fourth aspect, a control method is provided. The method includes: obtaining first information, where the first information is used to indicate the light emitting manner of the lighting device; and controlling the lighting device to emit light according to the first information.

[0052] The lighting device may be the lighting device of any one of the above first aspect to the third aspect and any of their possible implementation manners.

[0053] In a fifth aspect, a control device is provided. The device includes: a memory for storing a computer program; and a processor for executing the computer program stored in the memory so that the device executes the method in the above fourth aspect and any of its possible implementation manners.

[0054] In a sixth aspect, a control device is provided. The device includes: an obtaining unit for obtaining first information, where the first information is used to indicate the light emitting manner of the light source module; and a processing unit for controlling the light source module to emit light according to the first information

[0055] In a seventh aspect, a control system is provided. The control system includes the lighting device of any one of the above first aspect to the third aspect and any of their possible implementation manners, and a control device including any of the above fourth aspect or fifth aspect and any of their possible implementation manners.

[0056] In an eighth aspect, a vehicle is provided. The vehicle includes the lighting device of any one of the above first aspect to the third aspect and any of their possible implementation manners, or includes the control device of any of the above fourth aspect or fifth aspect and any of their possible implementation manners, or includes the control system of any of the above seventh aspect and any of their possible implementation manners.

[0057] In a ninth aspect, a computer program product is provided. The computer program product includes: computer program code, when the computer program code runs on a computer, causing the computer to execute the method in the above fourth aspect and any of its possible implementation manners.

[0058] In a tenth aspect, a computer-readable storage medium is provided. The computer-readable medium stores a computer program. When the computer program runs on a computer, the computer is caused to execute the method in the fourth aspect and any possible implementation manner thereof.

[0059] In an eleventh aspect, a chip is provided. The chip includes a circuit for executing the method in the fourth aspect and any possible implementation manner thereof. Description of the Drawings

[0060] Figure 1 is a schematic structural diagram of a lighting device provided by an embodiment of the present application;

[0061] Figure 2 is a schematic structural diagram of the light distribution element 22 provided by an embodiment of the present application;

[0062] Figure 3 is a schematic diagram of the lighting effect of the lighting device 1 provided by an embodiment of the present application;

[0063] Figure 4 is a schematic diagram of a light propagation path provided by an embodiment of the present application;

[0064] Figure 5 is a schematic structural diagram of the light distribution element 22 provided by an embodiment of the present application;

[0065] Figure 6 is a schematic structural diagram of another lighting device provided by an embodiment of the present application;

[0066] Figure 7 is a schematic diagram of the lighting effect of the lighting device 2 provided by an embodiment of the present application;

[0067] Figure 8 is a schematic structural diagram of the light distribution elements 32 and 33 provided by an embodiment of the present application;

[0068] Figure 9 is a schematic diagram of a light-shielding area and a light-transmitting area provided by an embodiment of the present application;

[0069] Figure 10 is a schematic structural diagram of another lighting device provided by an embodiment of the present application;

[0070] Figure 11 is a partial schematic diagram of the light-emitting surface 441 provided by an embodiment of the present application;

[0071] Figure 12 is a schematic structural diagram of another lighting device provided by an embodiment of the present application;

[0072] Figure 13It is a schematic flowchart of a control method provided by an embodiment of the present application;

[0073] Figure 14 It is a schematic diagram of a control device provided by an embodiment of the present application;

[0074] Figure 15 It is a schematic diagram of another control device provided by an embodiment of the present application. Detailed implementation manners

[0075] Next, the technical solutions in the present application will be described with reference to the accompanying drawings.

[0076] The detailed description and drawings of the following embodiments are used to exemplarily illustrate the principle of the present application, but cannot be used to limit the scope of the present application, that is, the present application is not limited to the described embodiments.

[0077] Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and other forms such as the third-person singular form "comprises" and the present participle form "comprising" are interpreted as open and inclusive meanings, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" etc. are intended to indicate that the specific features, structures, materials or characteristics related to the embodiment or example are included in at least one embodiment or example of the present application. The schematic representations of the above terms do not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials or characteristics can be included in any one or more embodiments or examples in any appropriate manner.

[0078] Hereinafter, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present application, unless otherwise stated, the meaning of "a plurality" refers to two or more.

[0079] The directional terms used in the following description are all the directions shown in the figures, and do not limit the specific structure in the embodiments of the present application. In the description of the embodiments of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "install", "connect", and "couple" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0080] When referring to "embodiment" in the embodiments of the present application, it means that the specific features, structures, or characteristics described in combination with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described in the present application can be combined with other embodiments.

[0081] The term "and / or" in the present application is merely a description of the association relationship of the associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in the present application generally represents an "or" relationship between the associated objects before and after.

[0082] In addition, the use of "based on" means open and inclusive, because a process, step, calculation, or other action "based on" one or more of the stated conditions or values can, in practice, be based on additional conditions or values beyond the stated ones.

[0083] As used in the embodiments of the present application, "about", "substantially", or "approximately" includes the stated value and the average value within an acceptable deviation range of the specific value, where the acceptable deviation range is determined by those of ordinary skill in the art considering the measurement being discussed and the errors associated with the measurement of the specific quantity, i.e., the limitations of the measurement system.

[0084] As described above, with the development of vehicle technology, higher and higher requirements are put forward for the uniqueness and aesthetics of vehicle lights. Among them, the lighting effect of vehicle lights is an important aspect in evaluating the aesthetics of vehicle lights. However, in the development process of some vehicle lights, the design of the structure and lighting effect of the vehicle lights may be mainly guided by meeting regulatory requirements and luminous uniformity; in this case, after lighting, the aesthetics of the vehicle lights may not be improved compared to when they are not lit, and even may deteriorate after lighting.

[0085] In view of this, the embodiments of the present application provide a lighting device, which can make the lighting effect of the vehicle lamp more unique and beautiful, and can improve the uniqueness and beauty of the vehicle lamp.

[0086] Exemplarily, Figure 1 is a schematic structural diagram of a lighting device provided by an embodiment of the present application. As Figure 1 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.

[0087] The light guide element 21 may be an optical element with a light guiding effect, such as a thick-walled part or a light guide bar.

[0088] The light guide element 21 may include a light emitting surface 212 and may also include a light emitting surface 211. The light emitting surface 211 may emit the first light along the first direction; the light emitting surface 212 may emit the second light along the second direction. The first direction may face the outside of the lighting device 1, that is to say, the first direction may be the light emitting direction of the lighting device 1. The second direction is different from the first direction.

[0089] For example, for the light entering the light guide element 21, after the light guiding effect of the light guide element 21, part of the light may be emitted from the light emitting surface 211, and part of the light may be emitted from the light emitting surface 212. In this case, the light emitted from the light emitting surface 211 may be taken as an example of the first light; the light emitted from the light emitting surface 212 may be taken as an example of the second light. The light entering the light guide element 21 may be the light emitted by the light source module of the lighting device 1 or the light emitted / reflected / scattered by a natural light source.

[0090] In one embodiment, as Figure 1 shown, the light emitting surface 211 may be provided at the end of the light guide element 21; the light emitted from the light emitting surface 211 may be emitted to the outside of the lighting device 1. As Figure 1 shown, the light emitting surface 212 may be provided at the bottom of the light guide element 21; the light emitted from the light emitting surface 212 may be emitted to the light distribution element 22.

[0091] In another embodiment, the relative position relationship between the light guide element 21 and the light distribution element 22 may be adjusted according to actual needs. In one example, different from Figure 1 the scheme shown, the light distribution element 22 may be provided above the light guide element 21.

[0092] The light distribution element 22 deflects light rays, for example, deflects light rays through reflection, refraction, and scattering. The light distribution element 22 can be arranged on the propagation path of the light rays emitted from the light-emitting surface 212. The light distribution element 22 can deflect the light rays emitted from the light-emitting surface 212 at least once and then emit them along the first direction. For example, under the light guiding action of the light guiding element 21, multiple light rays can be emitted from the light-emitting surface 212, and the multiple light rays are examples of the second light rays. For another example, for some light rays, they can be emitted towards the outside of the lighting device 1 after being deflected once on the light distribution element 22; for some light rays, they can be emitted towards the outside of the lighting device 1 after being deflected multiple times on the light distribution element 22.

[0093] The light distribution element 22 can include a concave structure 223 and a convex structure 224. The concave structure 223 and the convex structure 224 can be composed of curved surfaces. For the concave structure 223 and the convex structure 224, in different cross-sections, the curvatures and / or the changes in curvatures presented by them can be different.

[0094] Exemplarily, 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 the cross-section as Figure 1 shown, the concave structure 223 can be presented as a concave shape, and its opening direction can face the outside of the lighting device 1, and this concave shape can be an example of the first concave shape. For another example, assuming that the second direction is parallel to the height direction of the lighting device 1 or has a component in the height direction, in the cross-section perpendicular to the height direction of the lighting device 1, the concave structure 223 can be presented as another concave shape, and its opening direction can also face the outside of the lighting device 1. That is to say, along the height direction of the lighting device 1, the middle part of the concave structure 223 is recessed towards the inside of the lighting device 1 compared with the edge parts on both sides of the concave structure 223; along the width direction of the lighting device 1, the middle part of the concave structure 223 is recessed towards the inside of the lighting device 1 compared with the edge parts on both sides of the concave structure 223.

[0095] In one embodiment, the opening direction of the concave structure 223 faces the outside of the lighting device 1. When observing the concave structure 223 from the outside of the lighting device 1, the concave structure 223 can be presented as a valley / basin shape with a lower middle and higher surroundings.

[0096] 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 at one end away from the light-emitting surface 212, and the concave structure 223 can be at one end close to the light-emitting surface 212. For example, assuming that 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 may be above the convex structure 224.

[0097] The convex structure 224 may be connected to the concave structure 223. For example, as Figure 1 shown, the end of the concave structure 223 may be joined to the end of the convex structure 224, that is, it may directly transition from the concave structure 223 to the convex structure 224. Alternatively, features such as a flat surface or a curved surface for connection may be provided between the two, enabling a transition from the concave structure 223 to the convex structure 224.

[0098] Exemplarily, the lighting device 1 may further include a lamp housing 11 and a lamp cover 12. The lamp housing 11 and the lamp cover 12 may enclose to form an accommodation space. For example, the light guide element 21, the light distribution element 22, the light source module, etc. may be disposed in the accommodation space.

[0099] The lighting device 1 may also be provided with a fixing / supporting structure for components such as the lamp cover 12, the light guide element 21, and the light distribution element 22. For example, the lamp housing 11 may be fixedly connected to the lamp cover 12 through a supporting structure 111. Alternatively, the light guide element 21 may be fixed through supporting structures 112 and 113. Alternatively, the light distribution element 22 may be fixed through supporting structures 113 and 114. One or more of the above-mentioned supporting structures 111, 112, 113, and 114 may be coupled to the lamp housing 11, or alternatively, they may be independent parts.

[0100] The lamp cover 12 may be disposed 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 emitted from the light distribution element 22 may be emitted to the outside of the lighting device 1 through the lamp cover 12.

[0101] In the embodiments of the present application, the light guide element 21 and the light distribution element 22 may be disposed in the accommodation space formed by the lamp housing 11 and the lamp cover 12; thus, the lamp housing 11 and the lamp cover 12 may play a role in waterproofing and dustproofing for the light guide element 21 and the light distribution element 22 disposed in the accommodation space, and can improve the reliability and service life of the lighting device 1.

[0102] In some possible implementation manners, the lighting device 1 may further include a component 13. For example, the component 13 may scatter / reflect the light incident on its surface, and guide the light that would not originally reach the lamp cover 12 to the lamp cover 12 through scattering / reflection and emit it from the lamp cover 12. In this way, the utilization rate of the light can be improved. Alternatively, the component 13 may be a decorative component, improving the aesthetics and uniqueness of the lighting device 1.

[0103] Hereinafter, taking the light distribution element 22 being disposed below the light guide element 21 as an example, in combination with Figure 2An exemplary description is given of the structures of the concave structure 223 and the convex structure 224.

[0104] Exemplarily, Figure 2 is a schematic structural diagram of the light distribution element 22 provided in an embodiment of the present application. In Figure 2 the positional relationship between the light guide element 21 and the light distribution element 22 is the same as that between the two in Figure 1 Among them, the x-direction, y-direction, and z-direction can respectively represent the length direction, width direction, and height direction of the lighting device.

[0105] As Figure 2 shown in (a) of

[0106] the surfaces 221 and 222 of the light distribution element 22 can be provided with valley-shaped concave structures. The light emitted from the light exit surface 211 can be emitted to the outside of the lighting device 1 through the lamp cover 12. The light emitted from the light exit surface 212 can be emitted to the outside of the lighting device 1 through the lamp cover 12 after being deflected by the light distribution element 22. Figure 2 The sectional views of the light distribution element 22 at different cross-sections (for example, cross-section A-A, cross-section C-C) perpendicular to the width direction of the lighting device 1 can be as shown in (b) and (d) of Figure 2 The sectional view of the light distribution element 22 at a certain cross-section (for example, cross-section B-B) perpendicular to the height direction of the lighting device 1 can be as shown in (c) of

[0107] In one embodiment, as Figure 2 shown in (b) of

[0108] at different positions in 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. Figure 2 In another embodiment, as shown in (b) and (d) of

[0109] the curvatures and / or curvature change conditions of the concave structure 223 / convex structure 224 on different cross-sections can also be different. Figure 3

[0110] In one embodiment, assuming that the projection direction of the light exit surface 211 on the y-z plane is rectangular, and assuming that the projection of the light exit surface 212 on the x-y plane is also rectangular. In this case, the lighting effect of the lighting device 1 can be as shown in Figure 3 Among them, the light emitted from the light exit surface 211 can form the lighting effect shown in Pattern A; the light emitted from the light exit surface 212 can form the lighting effect shown in Pattern B after being deflected by the light distribution element 22.

[0110] In the embodiments of the present application, by providing a concave structure 223 and a convex structure 224 on the light distribution element 22, after the light beam emitted from the light exit surface 212 is deflected by the light distribution element 22, an annular lighting effect can be presented, which can enhance the uniqueness and aesthetics of the vehicle lamp.

[0111] In some possible implementation manners, the light guide element 21 and the light distribution element 22 may have different colors. For example, the light guide element 21 may have relatively bright colors (such as red, orange, amber, etc.); the light distribution element 22 may be presented in colors such as white, silver, etc. In this case, even when the lighting device 1 is not lit, under the action of natural light sources, when a user observes the lighting device 1, the effect as shown in Figure 3 may still be observed. The difference from when the lighting device 1 is lit is that the graphics A and B are relatively dim and have a lower brightness.

[0112] In the embodiments of the present application, when the light guide element and the light distribution element have different colors, when the lighting device is not lit, it can also present a relatively unique and beautiful appearance under the action of natural light sources, which can enhance the uniqueness and aesthetics of the vehicle lamp.

[0113] In some possible implementation manners, within the first region range in the width direction of the lighting device 1, the light distribution element 22 may include a first reflection region formed by the convex structure 224 and a second reflection region formed by the concave structure 223. Among them, the first reflection region can be used to deflect a first part of the second light rays emitted from the light exit surface 212 and emit them along the first direction, and deflect a second part of the second light rays emitted from the light exit surface 212 and emit them along the third direction. The second reflection region can be used to deflect the light rays emitted along the third direction after being deflected by the first reflection region and emit them along the first direction. For example, in the width direction, the middle region of the light distribution element 22 (such as the cross-section A-A and its peripheral regions) can be taken as an example of the first region range.

[0114] In some possible implementation manners, within the first region range in the width direction of the lighting device 1, the light distribution element 22 may include a third reflection region. The third reflection region is used to deflect at least once a third part of the second light rays emitted from the light exit surface 212 and emit them along the first direction.

[0115] Exemplarily, in the width direction of the lighting device 1, the first region range may be closer to the middle part of the concave structure 223 compared to the second region range.

[0116] Taking Figure 2 the cross-section A-A, the cross-section C-C in Figure 3 and the graphic B in Figure 4, an exemplary description is given of the arrangement manners of the first reflection region, the second reflection region, and the third reflection region.

[0117] Exemplarily, Figure 4 is a schematic diagram of a light propagation path provided by an embodiment of the present application.

[0118] As Figure 4 shown in (a) of [reference], since the reflection region A is composed of the convex structure 224, after the light rays emitted from the light-emitting surface 212 are reflected by the reflection region A, a part of them can be directly emitted to the outside of the lighting device 1, and the other part can be emitted to the concave structure 223. The reflection region B composed of the concave structure 224 can reflect this part of the light rays emitted from the reflection region A, and can make this part of the light rays be emitted towards the outside of the lighting device 1. In this case, the reflection region A can be taken as an example of the first reflection region, and the reflection region B can be taken as an example of the second reflection region.

[0119] As Figure 4 shown in (b) of [reference], after the light rays emitted from the light-emitting surface 212 are reflected one or more times by the reflection region C, they can be emitted to the outside of the lighting device 1. Since the cross-section C-C and the cross-section A-A are in different positions, the light rays emitted from the light-emitting surface 212 and incident on the reflection region A, and the light rays emitted from the light-emitting surface 212 and incident on the reflection region C, can be different parts corresponding to the second light rays.

[0120] In one embodiment, the reflection region A / B / C can be formed by the surface 222 of the light distribution element 22. In this case, during the propagation of the light rays, they will propagate inside the light distribution element 22 (i.e., between the surface 221 and the surface 222).

[0121] In another embodiment, the reflection region A / B / C can be formed by the surface 221 of the light distribution element 22. When the reflection region A / B / C is formed by the surface 221, the light rays do not need to propagate inside the light distribution element 22. Thus, the design difficulty of the light distribution element 22 can be reduced.

[0122] As Figure 4 shown in (c) of [reference], the pattern B can be composed of multiple parts, such as from pattern B-1 to B-4; among them, pattern B-1 and pattern B-2 are separated from each other in the height direction of the lighting device 1. For example, pattern B-1 and pattern B-2 can correspond to the first region range; pattern B-3 and pattern B-4 can correspond to the second region range.

[0123] In one embodiment, for the cross-section A-A, the light rays emitted to the outside of the lighting device 1 after being reflected by the reflection area A can form a pattern B-1; the light rays emitted to the outside of the lighting device 1 after being reflected by the reflection area B can be used to form a pattern B-2.

[0124] In another embodiment, for the cross-section C-C, the light rays emitted to the outside of the lighting device 1 after being reflected by the reflection area C one or more times can form a pattern B-3. The formation method of the pattern B-4 is similar to that of the pattern B-3, and will not be elaborated here.

[0125] In the embodiments of the present application, based on the setting of the reflection areas within the first area, the light rays emitted from the first reflection area and the second reflection area can respectively constitute the upper and lower two mutually separated parts in the annular lighting effect. Based on the setting of the reflection areas within the second area, the light rays emitted after one to multiple reflections by the third reflection area can constitute the parts that are connected to each other in the second direction in the annular lighting effect.

[0126] In some possible implementation manners, the light distribution element 22 can be arranged 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 reflection area can be less than or equal to 100 millimeters. For example, as Figure 5 shown in (a) of, in the cross-section A-A, the distance (denoted as D) between the light-emitting surface 212 and the reflection area A can be 70 or 80 millimeters, or this distance can also be other values less than 100 millimeters.

[0127] In an actual scenario, when the distance between the light-emitting surface 212 and the first reflection area is large, the observed lighting effect by the observer will be relatively dim. In the embodiments of the present application, the distance between the light-emitting surface 212 and the first reflection area is less than or equal to 100 millimeters, which can ensure the clarity of the lighting effect of the lighting device 1 and is beneficial to improving the quality sense of the lighting effect.

[0128] In some possible implementation manners, the light distribution element 22 can be arranged below the light guide element 21. In the cross-section perpendicular to the width direction of the lighting device, the curvature of the end of the first reflection area far from the light-emitting surface 212 can be greater than the curvature of the end of the first reflection area close to the light-emitting surface 212. For example, as Figure 5 shown in (a) of, in the cross-section A-A, the radius of curvature R4 can be greater than the radius of curvature R5; correspondingly, the curvature of the reflection area A at the radius of curvature R5 is greater than its curvature at the radius of curvature R4.

[0129] In an actual scenario, the installation position of the vehicle lamp is often lower than the height of the human eye. Taking the cross-section A-A as an example, if the curvature radius R4 is less than or equal to the curvature radius R5, the observer needs to be relatively close to the lighting device 1 to observe the annular lighting effect, resulting in a decrease in the perception of this lighting effect.

[0130] In the embodiment of the present application, when the curvature of the end of the first reflection area far from the light-emitting surface 212 is greater than the curvature of the end of the first reflection area close to the light-emitting surface 212, users / other traffic participants can observe the unique lighting effect of this lighting device when they are at a relatively far distance from this lighting device. In this way, the perception of the observer for this lighting effect can be improved.

[0131] In some possible implementation manners, within the range of the first area in the width direction of the lighting device 1, on the 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.

[0132] For example, assume that on the cross-section A-A, the curvature of the concave structure 223 is the largest at the curvature radius R2, and the curvature of the convex structure 224 is the smallest at the curvature radius R4; to avoid excessive divergence of the light rays emitted from the second reflection area, on this cross-section, the curvature of the concave structure 223 at the curvature radius R2 can be greater than the curvature of the convex structure 224 at the curvature radius R4.

[0133] In the embodiment of the present application, by setting the curvatures of the concave structure and the convex structure, the situation where the lighting effect is not obvious caused by excessive divergence of the light rays emitted from the second reflection area can be avoided.

[0134] In some possible implementation manners, the light distribution element 22 can be arranged below the light guide element 21. On the cross-section in 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. Among them, 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.

[0135] For example, as Figure 5As shown in (a) therein, the radius of curvature R2 can be less than the radius of curvature R1, and the radius of curvature R2 can be less than the radius of curvature R3; correspondingly, the curvature at the position corresponding to R2 is greater than the curvature at the position where R1 is located, and the curvature at the position corresponding to R2 is greater than the curvature at the position where R3 is located. In this case, the position corresponding to R2 can be taken as an example of the first position, the position corresponding to R1 can be taken as an example of the second position, and the position corresponding to R3 can be taken as an example of the third position.

[0136] In an actual scenario, when the radius of curvature R2 is less than or equal to R1 and R3, the distance between the graphic B-1 and the graphic B-2 is relatively close, and the hollow part of the circular pattern in the circular lighting effect will be relatively small, resulting in a low perception of the hollow part by the user / other traffic participants, and even possibly misidentifying the circular pattern as a circular pattern. In the embodiments of the present application, in the cross-section perpendicular to the width direction of the lighting device, by setting the curvature at the first position to the third position, the hollow area of the circular lighting effect can be made more obvious, which is beneficial to improving the user's perception of the lighting effect and enhancing the aesthetics and uniqueness of the lighting effect.

[0137] In some possible implementation manners, in the width direction of the lighting device 1, the curvature of the second concave shape in the second region range can be greater than its curvature in the first region range. Or rather, in the cross-section perpendicular to the height direction of the lighting device 1, the curvature of the concave structure 223 in the second region range can be greater than the curvature in the first region range.

[0138] In one embodiment, as Figure 5 shown in (b) therein, the region range #1 can be taken as an example of the first region range, and the region ranges #2 and #3 can be taken as examples of the second region range. The radii of curvature R6 and R7 can be taken as examples of the radii of curvature at a certain position in the first region range and the second region range respectively. For example, the radius of curvature R6 can be greater than R7; correspondingly, in the cross-section B-B, the curvature of the concave structure 223 at R6 can be less than its curvature at R7.

[0139] In an actual scenario, when the radius of curvature R6 is less than or equal to R7, the distance between the graphic B-3 and the graphic B-4 is relatively close, and the hollow part of the circular pattern in the circular lighting effect will be relatively small, resulting in a low perception of the hollow part by the user / other traffic participants, and even possibly misidentifying the circular pattern as a circular pattern. In the embodiments of the present application, in the cross-section perpendicular to the height direction of the lighting device, by setting the curvature of the first region range and the second region range, the hollow area of the circular lighting effect can be made more obvious, which is beneficial to improving the user's perception of the lighting effect and enhancing the aesthetics and uniqueness of the lighting effect.

[0140] For example, the lighting device 1 can be a fog lamp, a clearance lamp, a front / rear position lamp, a reversing lamp, a parking lamp, a turn signal lamp, a brake lamp, or other types of vehicle lamps or light signal devices. When the lighting device 1 is a different type of vehicle lamp, in order to meet regulatory requirements, it needs to emit light of a specified color when it is turned on. For example, when the lighting device 1 is a brake lamp, the graphics 1 and 2 can be displayed in red; when displayed as Figure 2 When the lighting effect shown is on, it can indicate to other road users that the current vehicle is braking. For another example, when the lighting device 1 is a turn signal light, the graphics 1 and 2 can be amber; when the lighting effect is shown as Figure 2 When the lighting effect shown is on, it can indicate to other road users that the current vehicle is about to / is turning.

[0141] In some possible implementations, the light distribution element 22 may be provided with a semi-transparent and semi-reflective film on the surface 221 or the 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%. For another example, optical elements such as a light source module and other light distribution elements may be provided behind the light distribution element 22 (such as in the space between the surface 222 and the lamp housing 11). By providing a semi-transparent and semi-reflective film, light emitted by these optical elements may be allowed to pass through the light distribution element 22.

[0142] In some embodiments, semi-transparent and semi-reflective films with other reflectivity / transmittance may also be used.

[0143] In the embodiment of the present application, on the one hand, the reflection effect of the semi-transparent and semi-reflective film can achieve the deflection effect of the light; on the other hand, when an optical element is arranged behind the light distribution element 22, the light emitted by 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 arranging the semi-transparent and semi-reflective film, both the annular lighting effect and the superposition / coupling with other lighting effects can be achieved.

[0144] The above combination Figures 1 to 5 The following describes a lighting device that can present a circular lighting effect. Figures 6 to 9 Introducing a lighting device that can present another lighting effect. The schemes of different lighting effects can be implemented separately or in combination with each other.

[0145] For example, Figure 6 Schematic diagram of another lighting device provided in an embodiment of the present application. 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 .

[0146] 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 lamp beads). For another example, the light source module 35 can further include a reflective surface 352, which can scatter / reflect the light incident on the reflective surface, and guide the 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, improving the utilization rate of light.

[0147] The light distribution element 32 and the light distribution element 33 can be arranged on the light propagation path, and the light distribution element 33 can be arranged between the light distribution element 32 and the light source module 35. For example, the light emitted from the light source module 35 can propagate to the light distribution element 32 through the light distribution element 33.

[0148] Exemplarily, both the light distribution element 32 and the light distribution element 33 can be provided with a semi-transmissive and semi-reflective film. For the convenience of distinction, the semi-transmissive and semi-reflective film provided on the light distribution element 32 can be referred to as the first semi-transmissive and semi-reflective film, and the semi-transmissive and semi-reflective film provided on the light distribution element 33 can be referred to as the second semi-transmissive and semi-reflective film.

[0149] For example, a semi-transmissive and semi-reflective film is provided on the incident surface 322 or the exit surface 321 of the light distribution element 32. For another example, a semi-transmissive and semi-reflective film is provided on the incident surface 332 or the exit surface 331 of the light distribution element 33.

[0150] Assume that a semi-transmissive and semi-reflective film is provided on the surface 331 of the light distribution element 33, and assume that a semi-transmissive and semi-reflective film is provided on the surface 321 of the light distribution element 32. The following will introduce the lighting effect of the lighting device 2 in combination with Figure 7 introduce the lighting effect of the lighting device 2.

[0151] As Figure 7 shown, for the object A, a virtual image 1 can be generated under the reflection of the exit surface 321; the virtual image 1 can generate a virtual image 2 under the reflection of the exit surface 331; the virtual image 2 can generate a virtual image 3 under the reflection of the exit surface 321; the virtual image 3 can generate a virtual image 4 under the reflection of the exit surface 331, and so on.

[0152] When the observer observes the object A, what may be perceived is the virtual image of the object A. That is to say, the light emitted by the object A can produce a depth effect through multiple reflections between the two reflective surfaces. Similarly, the light emitted from the light source module 35 can produce a depth effect through multiple reflections between the two reflective surfaces after passing through the light distribution element 33.

[0153] In the embodiments of the present application, by respectively providing semi-transparent and semi-reflective films on the light distribution elements 32 and 33, the light emitted from the light source module 35 can be reflected multiple times between the first semi-transparent and semi-reflective film and the second semi-transparent and semi-reflective film. Even when the distance between the light distribution element 32 and the light distribution element 33 is small, a lighting effect with a sense of depth can be generated. In particular, when the lighting device 2 can generate personalized patterns such as characters and starry skies, the lighting effect with a sense of depth can make the personalized pattern more vivid and improve the quality of the lighting device.

[0154] Exemplarily, the surface of the light distribution element 32 provided with the first semi-reflective and semi-transparent film can be referred to as the third surface, and the surface of the light distribution element 33 provided with the second semi-reflective and semi-transparent film 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.

[0155] In some possible implementation manners, the exit angle of the light when exiting through the third surface can be different from the exit angle of the light when exiting through the fourth surface. For example, by adjusting the curvature of the surface where the semi-transparent and semi-reflective film is located, it is possible to achieve that the exit angle of the light when exiting through the third surface is different from the exit angle of the light when exiting through the fourth surface.

[0156] In one embodiment, it is assumed that a semi-transparent and semi-reflective film is provided on the surface 331 of the light distribution element 33, and it is assumed that a semi-transparent and semi-reflective film is provided on the surface 321 of the light distribution element 32. For example, when one of the surface 331 and the surface 321 is a curved surface and the other is a flat surface, the angle between the light and the normal of the surface 331 when any light exits through the surface 331 can be different from the angle between the light and the normal of the surface 321 when the light exits through the surface 321. Another example is that when both the surface 331 and the surface 321 are curved surfaces, when their curvatures are different, the exit angle of any light when exiting through the surface 331 can be different from the exit angle of the light when exiting through the surface 321. Another example is that when both the surface 331 and the surface 321 are curved surfaces, the points with a certain curvature on the surface 331 and the points with the corresponding curvature on the surface 321 can be misaligned in the height direction or the width direction, so that the above two exit angles can be different.

[0157] If the exit angle of the light when exiting through the third surface is equal to the exit angle of the light when exiting through the fourth surface, the light intensity that the observer can feel will be relatively small. In the embodiments of the present application, the exit angle of the light when exiting through the first surface is different from the exit angle of the light when exiting through the second surface, which is beneficial to improving the quality of the lighting effect with a sense of depth.

[0158] In some possible implementation manners, the first semi-transmissive and semi-reflective film and the second semi-transmissive 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. Among them, 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.

[0159] The following will exemplify Figure 8 the angle between the third surface / fourth surface and the first horizontal line.

[0160] Assume that semi-transmissive and semi-reflective films are respectively disposed on the surface 331 and the surface 321. As Figure 8 shown, the range occupied by the semi-transmissive and semi-reflective film disposed on the surface 331 in the height direction may be the range #1 or exceed the range #1; similarly, the range occupied by the semi-transmissive and semi-reflective film disposed on the surface 321 in the height direction may be the range #1 or exceed the range #1. The range #1 may correspond to the first range.

[0161] The horizontal line #1 may be any horizontal line within the range #1, and this horizontal line may pass through the two semi-transmissive and semi-reflective films respectively disposed on the surfaces 331 and 321. The angle formed by the horizontal line #1 and the surface 331 may be different from the angle formed by the horizontal line #1 and the surface 321. For example, if the surface 331 is obtained by copying the shape of the surface 321 (i.e., they are the same), the surface 331 may have a certain displacement in the width direction or the height direction relative to the surface 321, so that the angle formed by the horizontal line #1 and the surface 331 can be different from the angle formed by the horizontal line #1 and the surface 321. Another example is that when one of the surfaces 331 and 321 is a plane and the other is a curved surface, the angle formed by the horizontal line #1 and the surface 331 can be different from the angle formed by the horizontal line #1 and the surface 321.

[0162] When 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 that the observer can feel will be relatively small. In the embodiments of the present application, by reasonably setting the angles between the first horizontal line and the third surface and the fourth surface, it is beneficial to improve the quality of the depth-of-field lighting effect.

[0163] In some possible implementation manners, the light distribution element 33 may be provided with a light-shielding area and a light-transmitting area on the light-incident surface 332, as Figure 9As shown, when the light emitted by the light source module 35 passes through the light-transmitting area of the light-incident surface 332, it can pass through the light distribution element 33 and propagate towards the light distribution element 32. When the light emitted by the light source module 35 irradiates the light-blocking area of the light-incident surface 332, it will be blocked by the light-blocking area and cannot propagate towards the light distribution element 32. For example, the above-mentioned light-blocking area and light-transmitting area can be realized by processes such as laser engraving and painting, and film sticking.

[0164] In one embodiment, when forming a personalized pattern in the light-transmitting area, when the lighting device 2 is in the lit state, a personalized pattern with a sense of depth will be presented. For example, when the light-transmitting area forms a text pattern, text with a sense of depth will be presented. Another example is that when there are multiple randomly distributed light-transmitting areas on the light-incident surface 322, if the size of each light-transmitting area is less than a certain threshold (such as 0.5 mm, 1 mm, etc.), when the lighting device is lit, a starry sky effect with a sense of depth will be presented.

[0165] In the embodiment of the present application, by setting the light-blocking area and the light-transmitting area, personalized patterns such as text and starry sky can be formed. Since the lighting device can produce a lit effect with a sense of depth, it can make personalized patterns such as starry sky and text more vivid, further enhancing the uniqueness and beauty of the lighting device.

[0166] The above combination Figures 6 to 9 introduces a lighting device that can present a lit effect with a sense of depth. The following will introduce a lighting device that can present another lit effect in combination with Figure 10 and Figure 11 The above solutions with different lit effects can be implemented separately, or they can also be combined with each other.

[0167] Exemplarily, Figure 10 is a schematic structural diagram of another lighting device provided by the embodiment of the present application. As Figure 7 shown, the lighting device 3 can include a light distribution element 44 and a light source module 45.

[0168] Similar to the light source module 35, the light source module 45 can generate light. The light source module 45 can include a light-emitting element 451 and can also include a reflecting surface 452.

[0169] The light distribution element 44 can be arranged on the light propagation path. In the light-emitting direction of the lighting device 3, the light distribution element 44 can include a relatively arranged light-incident surface 442 and a light-emitting surface 441. A protruding light-emitting portion can be arranged on the light-emitting surface 441, and the protruding light-emitting portion is a polyhedron structure.

[0170] In one embodiment, the views of the light distribution element 44 at different angles can be as shown in (a) in Figure 11 .

[0171] In another embodiment, asFigure 11 As shown in (b), a plurality of light-emitting portions with randomly distributed sizes and positions may be provided on the light-emitting surface 441.

[0172] In the embodiment of the present application, by providing the protruding light-emitting portions, when an observer observes the lighting device from different perspectives, different light intensities can be felt as the perspective changes. That is to say, the effect of variable light intensity from multiple perspectives can be achieved in this way. In particular, when the lighting device 3 can generate personalized patterns such as characters and starry skies, the effect of variable light intensity can make the personalized pattern more vivid and improve the quality sense of the lighting device.

[0173] In some possible implementation manners, the lighting device 3 may further include a light distribution element 43, and the light distribution element 44 may be disposed between the light distribution element 43 and the light source 45. In the light-emitting direction of the lighting device 3, the light distribution element 43 may include an incident light surface 432 or an outgoing light surface 431 which are oppositely arranged. The incident light surface 432 or the outgoing light surface 431 may be provided with a light-shielding area and a light-transmitting area, as Figure 9 shown.

[0174] In one embodiment, when forming personalized graphics such as characters and starry skies in the light-transmitting area, since the lighting device can produce the effect of variable light intensity from multiple perspectives, it can make personalized patterns such as starry skies and characters more vivid and further improve the uniqueness and aesthetics of the lighting device.

[0175] The above Figures 1 to 11 respectively introduce lighting devices with different lighting effects. The following is an exemplary description of the combination methods of different lighting effects.

[0176] In one embodiment, the lighting effect of the lighting device 1 may be coupled with the lighting effect of the lighting device 3. For example, a light source 45 and a light distribution element 44 may be provided in the lighting device 1; in this case, a semi-transparent and semi-reflective film may also be provided on the surfaces 221 and 222 of the light distribution element 22. For another example, when it is necessary to generate personalized graphics such as characters and starry skies, the semi-transparent and semi-reflective film may be provided on the surface 221, and a light-shielding area and a light-transmitting area may be provided on the surface 222. Thus, it is possible to save costs by not providing a light distribution element 43 including a light-shielding area and a light-transmitting area in the lighting device 1.

[0177] In another embodiment, the lighting effect of the lighting device 2 may be coupled with the lighting effect of the lighting device 3. For example, a light distribution element 44 may be provided in the lighting device 2, and the light distribution element 44 may be disposed 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 characters and starry skies, the semi-transparent and semi-reflective film may be provided on the surface 331, and a light-shielding area and a light-transmitting area may be provided on the surface 332.

[0178] In another embodiment, the lighting effect of the lighting device 1 can be coupled with the lighting effect of the lighting device 2. For example, a light source module 35 and a light distribution element 33 can be added to the 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-transmissive and semi-reflective film can be disposed 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 is beneficial to reducing the number of parts of the lighting device and achieving the effect of cost savings.

[0179] The following will give an exemplary description of the combination scheme of the above three lighting effects in conjunction with Figure 12 .

[0180] Exemplarily, Figure 12 is a schematic structural diagram of another lighting device provided by an embodiment of the present application. As shown in (a) of Figure 12 , the lighting device 4 can 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.

[0181] The light guide element 51 can correspond to the light guide element 21 and can have light-emitting surfaces 511 and 512.

[0182] In one embodiment, the light distribution element 52 can correspond to the light distribution element 22 and can be disposed on the propagation path of the light emitted from the light-emitting surface 511. The light distribution element 52 can have a concave structure and a graphic structure, and in combination with the light guide element 51, can provide an annular lighting effect.

[0183] In another embodiment, the light distribution element 52 can correspond to the light distribution element 32, and a semi-transmissive and semi-reflective film can be disposed on the light-emitting surface 521 or the light-incident surface 522. Correspondingly, the light distribution element 53 can correspond to the light distribution element 33, and a semi-transmissive and semi-reflective film can be disposed on the surface 531. Thus, a lighting effect with a sense of depth can be presented.

[0184] The light distribution element 54 can correspond to the light distribution element 44, and a protruding light-emitting portion can be disposed on the light-emitting surface 541 to provide a lighting effect with variable light intensity at multiple viewing angles. For example, the light distribution element 53 can also correspond to the light distribution element 43, and a light-shielding region and a light-transmitting region can be disposed on the light-incident surface 532.

[0185] The light source module 55 can correspond to the light source module 35 and / or 45.

[0186] Exemplarily, similar to the lighting device 1, the lighting device 4 can also include a lamp housing 11 and a lamp cover 12. In one example, Figure 12 (b) in shows an exploded view of some components in the lighting device 4.

[0187] The lighting effect of the above-mentioned lighting device 4 can be understood as a combination of a ring lighting effect, a sense of depth lighting effect, and a multi-view variable light intensity lighting effect. For example, when the light distribution element 54 is cancelled, the lighting effect of the lighting device 4 will only couple the ring lighting effect and the sense of depth lighting effect. Another example is that when the light distribution element 53 is cancelled, the lighting effect of the lighting device 4 will only couple the ring lighting effect and the multi-view variable light intensity lighting effect. Another example is that when the light guide element 51 is cancelled, the lighting effect of the lighting device 4 will only couple the sense of depth lighting effect and the multi-view variable light intensity lighting effect.

[0188] The structures of the lighting devices (1, 2, 3, 4) have been exemplarily described above in combination with different application scenarios. The following Figure 13 introduces a control method that cooperates with the lighting device.

[0189] Exemplarily, Figure 13 is a schematic flowchart of a control method provided by an embodiment of the present application. Figure 13 The method 100 shown can be used in cooperation with any of the above lighting devices.

[0190] S110, obtain first information, where the first information is used to indicate the light-emitting mode of the lighting device.

[0191] Exemplarily, the lighting device may include a plurality of light-emitting elements, and the plurality of light-emitting elements may be distributed in different areas of the lighting device. For example, the light-emitting mode indicated by the first information may include any one of the light-emitting modes preset when the lighting device leaves the factory, the light-emitting mode set by the user himself, and the light-emitting mode indicated by the user.

[0192] In one embodiment, in the light-emitting mode #1, at least one of the plurality of light-emitting elements can continuously emit light in a corresponding order at a corresponding time.

[0193] In another embodiment, in the light-emitting mode #2, at least one of the plurality of light-emitting elements can flash at a certain frequency in a corresponding order at a corresponding time.

[0194] In another embodiment, in the light-emitting mode #3, at least one of the plurality of light-emitting elements can be sequentially lit in a corresponding order.

[0195] The above light-emitting modes #1 to #3 are only examples, and there may be other light-emitting modes, which will not be elaborated here one by one.

[0196] S120, control the lighting device to emit light according to the first information.

[0197] Exemplarily, for the lighting device 2, when the light-transmitting area of the light distribution element 33 can form personalized patterns such as characters and starry skies, by controlling the lighting device to emit light in different ways, a more abundant and vivid lighting effect can be provided.

[0198] The embodiments of the present application also provide a device for implementing the above control method. For example, a control device is provided, which includes units for implementing each step performed by the lighting device in any of the above methods.

[0199] For example, please refer to Figure 14 , which is a schematic structural diagram of a control device provided by an embodiment of the present application. The control device 200 (abbreviated as device 200) may include an acquisition unit 210 and a processing unit 220.

[0200] Among them, the acquisition unit 210 can be used to acquire first information, and the first information can be used to indicate the light-emitting mode of the lighting device. The processing unit 220 can be used to control the lighting device to emit light according to the first information.

[0201] The division of each unit in the above device is only a logical function division. In actual implementation, it can be fully or partially integrated into a physical entity, or physically separated. All units of the above device can be all implemented in the form of software called by a processor, or all implemented in the form of hardware circuits, or part implemented in the form of software called by a processor, and the remaining part implemented in the form of hardware circuits.

[0202] In the specific implementation process, the above acquisition unit 210 can be implemented by at least one transceiver or transceiver-related circuit, and the processing unit 220 can be implemented by at least one processor or processor-related circuit. In one example, one or more processors can control at least one light-emitting element in the lighting device to emit light according to the first information.

[0203] Exemplarily, in the specific implementation process, the above device 200 can be a control module of the lighting device (1, 2, 3, 4), or can be a control device of the lighting device (1, 2, 3, 4), or can be a control system provided with the lighting device (1, 2, 3, 4), or can be a vehicle provided with the lighting device (1, 2, 3, 4), or can be a computing platform of the vehicle, or can also be a chip or processor of the above control module, control device, control system or computing platform.

[0204] Exemplarily, Figure 15It is a schematic block diagram of another control device provided by an embodiment of the present application. The control device 300 (abbreviated as device 300) may include: a processor 310, an interface circuit 320, and a memory 330. Among them, the processor 310, the interface circuit 320, and the memory 330 are connected through an internal connection path. The memory 330 is used to store instructions, and the processor 310 is used to execute the instructions stored in the memory 330 to receive / send some parameters through the interface circuit 320. Optionally, the memory 330 can be coupled to the processor 310 through an interface or integrated with the processor 310.

[0205] It should be noted that the above interface circuit 320 may include, but is not limited to, transceiver devices such as input / output interfaces, to implement communication between the device 300 and other devices or communication networks. For example, the first information can be obtained through the interface circuit 320. For another example, the lighting device can be controlled to emit light through the interface circuit 320.

[0206] An embodiment of the present application also provides a computer program product, which includes: computer program code. When the computer program code runs on a computer, it causes the computer to execute any possible implementation manner of the above method 100.

[0207] An embodiment of the present application also provides a chip, including a circuit for executing the method 100 and any possible implementation manner thereof in the embodiment of the present application.

[0208] An embodiment of the present application also provides a control system, which may include any of the above possible lighting devices, and the control device 200 or 300.

[0209] An embodiment of the present application also provides a vehicle, which includes any of the above possible lighting devices, or includes the above control system.

[0210] In the embodiments of the present application, the vehicle involved is a vehicle in a broad sense, which may be a means of transportation (such as commercial vehicles, passenger vehicles, motorcycles, flying vehicles, trains, etc.), industrial vehicles (such as forklifts, trailers, tractors, etc.), engineering vehicles (such as excavators, bulldozers, cranes, etc.), agricultural equipment (such as lawn mowers, harvesters, etc.), amusement equipment, toy vehicles, etc. The embodiments of the present application do not make specific limitations on the type of vehicle. For example, the vehicle in the present application may include pure electric vehicles (pureelectric vehicle / battery electric vehicle, pure EV / battery EV), hybrid electric vehicles (hybrid electric vehicle, HEV), range extended electric vehicles (range extended electric vehicle, REEV), plug-in hybrid electric vehicles (plug-in hybrid electric vehicle, PHEV) or new energy vehicles (new energy vehicle, NEV), etc.

[0211] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or by a combination of computer software and electronic hardware. Whether these functions are executed in hardware or software depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered to exceed the scope of the present application.

[0212] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0213] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces, and the indirect couplings or communication connections of the devices or units can be in electrical, mechanical or other forms.

[0214] The unit described as a separation component may or may not be physically separated. The component shown as a unit may or may not be a physical unit, that is, it may be located in one place or distributed across multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0215] In addition, in each embodiment of the present application, each functional unit may be integrated in a processing unit, may exist separately as individual physical units, or two or more units may be integrated in one unit.

[0216] If the described function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories, random access memories, magnetic disks, or optical discs.

[0217] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claimed rights.

Claims

1. A lighting device (1), characterized in that: include: A light guide element (21) and a first light distribution element (22), The light-guiding element (21) comprises a first light-emitting surface (211) and a second light-emitting surface (212), the first light-emitting surface (211) being used to emit a first light along a first direction, and the second light-emitting surface (212) being used to emit a second light along a second direction, the first direction and the second direction being different, and the first direction being directed toward the outside of the lighting device; The first light distribution element (22) is arranged on a propagation path of the second light emitted from the second light emitting surface (212), and is used for deflecting the second light emitted from the second light emitting surface (212) and emitting it along the first direction. Wherein, 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) presents a second concave shape, and one 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 of the width direction of the lighting device (1), the first light distribution element (22) comprises a first reflection region formed by the convex structure (224) and a second reflection region formed by the concave structure (223), The first reflection area is used to: deflect a first part of the second light emitted from the second light emitting surface (212) and emit it along the first direction, and deflect a second part of the second light emitted from the second light emitting surface (212) and emit it along a third direction; The second reflection area is used to deflect the light emitted along the third direction after being deflected by the first reflection area, and emit it along the first direction after being deflected.

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

4. The lighting device (1) according to claim 3, characterized in that: Compared with the second area range, the first area range is close 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) within the second region is greater than the curvature of the concave structure (223) within the first region.

6. The lighting device (1) according to any one of claims 2 to 5, 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 6, characterized in that: The first light distribution element (22) is arranged below the light guide element (21), and in the height direction of the lighting device (1), the distance between the second light emitting surface (212) and the first reflection area is less than or equal to 100 millimeters.

8. The lighting device (1) according to any one of claims 2 to 7, characterized in that: The first light distribution element (22) is arranged below the light guide element (21), and in a cross section perpendicular to the width direction of the lighting device (1), the curvature of the first reflection area at an end away from the second light emitting surface (212) is greater than the curvature of the first reflection area at an end close to the second light emitting surface (212).

9. The lighting device (1) according to any one of claims 2 to 8, characterized in that: The first light distribution element (22) is arranged 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 a first position is greater than the curvature of the concave structure (223) at a 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 a third position; Wherein, 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 9, 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 10, characterized in that: The first light distribution element (22) comprises a first surface (221) and a second surface (222) which are arranged opposite to each other, the first surface (221) faces the outside of the lighting 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 11, characterized in that: The lighting device (1) further comprises a light source module (45) and a second light distribution element (44). The light source module (45) is used to generate a third light; The first light distribution element (22) and the second light distribution element (43) are arranged on a propagation path of the third light, and the second light distribution element (44) is arranged between the first light distribution element (22) and the light source module (45); The second light distribution element (44) comprises a first light incident surface (442) and a third light emitting surface (441) which are arranged opposite to each other in the light emitting direction of the lighting device (1); the third light emitting surface (441) is provided with a plurality of protruding light emitting portions, and the protruding light emitting portions are polyhedral structures.

13. The lighting device (1) according to claim 12, 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 arranged on the second surface (222) forms a text pattern; or, The second surface (222) includes a plurality of light-transmitting areas, the plurality of light-transmitting areas 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 (2), characterized in that: include: 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 arranged on the propagation path of the light, and the fourth light distribution element (33) is arranged 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-transmissive and semi-reflective film, and the fourth light distribution element (33) is provided with a second semi-transmissive and semi-reflective film.

16. The lighting device (2) according to claim 15, characterized in that The first semi-transmissive and semi-reflective film is arranged on a third surface (321, 322) of the third light distribution element (32), and the second semi-transmissive and semi-reflective film is arranged on a fourth surface (331, 332) of the fourth light distribution element (33). A first emission angle of the light when it is emitted through the third surface (321, 322) is different from a second emission angle of the light when it is emitted through the fourth surface (331, 332).

17. The lighting device (2) according to claim 15 or 16, characterized in that: The first semi-transmissive and semi-reflective films and the second semi-transmissive and semi-reflective films are arranged within a first range in a width direction of the lighting device (2) and within a second range in a height direction of the lighting device (2). The angle between the third surface (321, 322) and the first horizontal line is different from the angle between the fourth surface (331, 332) and the first horizontal line, Wherein, in the width direction of the lighting device (2), the first horizontal line is within the first range and is parallel to the width direction; and in the height direction of the lighting device (2), the first horizontal line is within the second range.

18. The lighting device (2) according to any one of claims 15 to 17, characterized in that: The third light distribution element (32) comprises a second light incident surface (322) and a fourth light emitting surface (321) which are arranged opposite to each other in the light emitting direction of the lighting device (2), and the first semi-transmissive and semi-reflective film is arranged on the fourth light emitting surface (321) or the second light incident surface (322); The fourth light distribution element (33) comprises a third light incident surface (332) and a fifth light emitting surface (331) which are arranged opposite to each other in the light emitting direction of the lighting device (2), and the second semi-transmissive and semi-reflective film is arranged on the fifth light emitting surface (331).

19. The lighting device (2) according to any one of claims 15 to 18, characterized in that: The third light incident surface (332) of the fourth light distribution element (33) is provided with a light shielding area and a light transmitting area.

20. The lighting device (2) according to claim 19, characterized in that The light-transmitting area arranged on the third light-incident surface (332) forms a text pattern; or, The third light incident surface (332) comprises a plurality of light-transmitting areas, the plurality of light-transmitting areas are randomly distributed on the third light incident surface (332), and the size of each of the plurality of light-transmitting areas is less than or equal to a second threshold.

21. The lighting device (2) according to any one of claims 15 to 20, characterized in that: The lighting device (2) further comprises a second light distribution element (44), The second light distribution element (44) is arranged on the propagation path of the light, and the second light distribution element (44) is arranged between the fourth light distribution element (33) and the light source module (35); The second light distribution element (44) comprises a first light incident surface (442) and a third light emitting surface (441) which are arranged opposite to each other in the light emitting direction of the lighting device (2); the third light emitting surface (441) is provided with a plurality of protruding light emitting portions, and the protruding light emitting portions are polyhedral structures.

22. A lighting device (4), characterized in that: include: A light guide element (51) and a first light distribution element (52), The light-guiding element (51) comprises a first light-emitting surface (511) and a second light-emitting surface (512), the first light-emitting surface (511) being used to emit a first light along a first direction, and the second light-emitting surface (512) being used to emit a second light along a second direction, the first direction and the second direction being different, and the first direction being toward the outside of the lighting device; The first light distribution element (52) is arranged on a propagation path of the second light emitted from the second light emitting surface (512), and is used for deflecting the second light emitted from the second light emitting surface (512) and emitting it along the first direction; Wherein, 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 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 (512) is connected to the convex structure; The lighting device (4) further comprises: a light source module (55) and a fourth light distribution element (53), The light source module (55) is used to generate a third light; The first light distribution element (52) and the fourth light distribution element (53) are arranged on a propagation path of the third light, and the fourth light distribution element (53) is arranged 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-transmissive and semi-reflective film, and the fourth light distribution element (53) is provided with a second semi-transmissive and semi-reflective film.

23. The lighting device (4) according to claim 22, characterized in that The lighting device (4) further comprises a second light distribution element (54), The second light distribution element (54) is arranged on the propagation path of the third light, and the second light distribution element (54) is arranged between the fourth light distribution element (53) and the light source module (55); The second light distribution element (54) comprises a first light incident surface (542) and a third light emitting surface (541) which are arranged opposite to each other in the light emitting direction of the lighting device (4); the third light emitting surface (541) is provided with a plurality of protruding light emitting portions, and the protruding light emitting portions are polyhedral structures.

24. The lighting device (4) according to claim 22 or 23, characterized in that: The fourth light distribution element (53) comprises a third light incident surface (532) and a fifth light emitting surface (531) which are arranged opposite to each other in the light emitting direction of the lighting device (4); the second semi-transparent and semi-reflective film is arranged on the fifth light emitting surface (531); and the third light incident surface (532) of the fourth light distribution element (53) is provided with a light shielding area and a light transmitting area.

25. The lighting device (4) according to claim 24, characterized in that The light-transmitting area arranged on the third light-incident surface (532) forms a text pattern; or, The third light incident surface (532) includes a plurality of light-transmitting areas, the plurality of light-transmitting areas are randomly distributed on the fourth light incident surface (442), and a size of each of the plurality of light-transmitting areas is less than or equal to a second threshold.

26. A control method, characterized in that: include: Acquire first information, where the first information is used to indicate a light emitting mode of the light emitting device; According to the first information, the lighting device is controlled to emit light, wherein the lighting device comprises the lighting device as claimed in any one of claims 1 to 25.

27. A control device, characterized in that: include: Memory for storing computer programs; A processor, configured to execute the computer program stored in the memory so that the apparatus performs the method according to claim 26.

28. A control system, characterized in that: It comprises the control device as claimed in claim 27, and it comprises the lighting device as claimed in any one of claims 1 to 25.

29. A vehicle, characterized in that: Comprising the lighting device according to any one of claims 1 to 25, or comprising the control system according to claim 28, or comprising the control device according to claim 27.

30. A computer-readable storage medium, characterized in that: Instructions are stored thereon, and when the instructions are executed by a processor, the processor is caused to implement the method as claimed in claim 26.

31. A chip, characterized in that: The chip comprises a circuit for performing the method of claim 26 .

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