Light device and vehicle

Abstract

A light device and a vehicle. The light device (200) comprises light-emitting elements (210) and a light structural member (220); the light structural member (220) is provided with a slot (230); the light structural member (220) is configured to allow a first end of a vehicle window glass (100) to be embedded into the light device (200) by means of the slot (230); the light-emitting elements (210) are used for emitting light so as to excite a fluorescent substance to emit fluorescence; and the vehicle window glass (100) comprises a first surface (110) and a second surface (120) arranged opposite to each other in the thickness direction of the vehicle window glass (100), and a side portion (130) arranged at the first end, the side portion (130) is configured to allow light to enter the vehicle window glass (100), and at least one of the first surface (110) and the second surface (120) is used for arranging a fluorescent layer (111, 121) containing the fluorescent substance. The light device and the vehicle are applicable to intelligent vehicles or new energy vehicles, can excite a fluorescent pattern on the surface of the vehicle window glass when the light device is turned on, so as to improve the atmosphere in the vehicle, support the personalized design of a user for the fluorescent pattern, and can improve the interaction experience and interactivity between the user and the vehicle.

Description

Lighting installations and vehicles Technical Field

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

[0002] As vehicle technology advances, users have increasingly higher demands for their riding experience. Incorporating ambient lighting into vehicles to enhance the interior ambiance is a viable solution for improving the user's riding experience.

[0003] However, neither the strip-shaped ambient lights installed on the vehicle door trim, center console, or other parts, nor the "starry sky" style ambient lights, can support users to customize the patterns that the ambient lights will display when they are turned on. Summary of the Invention

[0004] This application provides a lighting device and a vehicle. The lighting device can excite a fluorescent pattern on the surface of the vehicle window when illuminated to improve the atmosphere inside the vehicle and supports the user's personalized design of the fluorescent pattern, thereby enhancing the user's interactive experience and interactivity with the vehicle.

[0005] In a first aspect, a lighting device is provided. The lighting device (200) includes a light-emitting element (210) and a lighting structure (220); the lighting structure (220) is provided with a groove (230) for embedding a first end of a vehicle window glass (100) into the lighting device (200) through the groove (230); the light-emitting element (210) is used to emit light to excite a fluorescent material to emit fluorescence. The vehicle window glass (100) includes a first surface (110) and a second surface (120) disposed opposite to each other along the thickness direction of the vehicle window glass (100), and a side portion (130) disposed at the first end for allowing light to enter the vehicle window glass (100); at least one of the first surface (110) and the second surface (120) is used to provide a fluorescent layer (111, 121) containing a fluorescent material.

[0006] In this application, the lighting device (200) can excite a fluorescent pattern on the surface of the window glass (100) when it is lit, and supports the user's personalized design of the fluorescent pattern, which can enhance the user's interactive experience and interactivity with the vehicle.

[0007] In some possible implementations, the light-emitting element (210) can be disposed in the groove (230), and the light-emitting surface (211) of the light-emitting element (210) can be disposed in the direction of the opening of the groove (230); the ratio of the width of the light-emitting surface (211) to the width of the groove (230) can be greater than or equal to 0.5.

[0008] In this application, the ratio of the width of the light-emitting surface (211) of the light-emitting element (210) to the width of the groove (230) is set above the corresponding threshold, which enables the light-emitting element (210) to illuminate the side 130 of the car window glass (100) to be close to the direct illumination condition, which can ensure that the light in the car window glass (100) is propagated by total internal reflection as much as possible, which is beneficial to reducing the possibility of light leakage and ensuring the normal light emission of the fluorescent layer.

[0009] In some possible implementations, the depth of the groove (230) can be greater than or equal to 5 cm.

[0010] In this application, the depth of the groove (230) is set above the corresponding threshold, which makes the illumination condition of the light-emitting element (210) on the side (130) closer to the direct illumination condition. Accordingly, the light will propagate as much as possible in the form of total internal reflection at the surface (110, 120) of the car window glass (100). In this way, the light leakage phenomenon can be reduced, and the user's perception of the light leakage phenomenon can be reduced, which is conducive to ensuring the normal light emission of the fluorescent pattern.

[0011] In some possible implementations, when the window glass (100) is embedded in the lighting device (200) through the groove (230), the distance between the light-emitting element (210) and the side (130) can be greater than or equal to 5 mm.

[0012] In this application, the distance between the window glass (100) and the light-emitting element (210) is set above the corresponding threshold, which can prevent the window glass (100) and the light-emitting element (210) from colliding due to vehicle vibration, and is beneficial to improving the service life of the lighting device (200).

[0013] In some possible implementations, the groove (230) may include a bottom (231) and a first side (232) and a second side (233) disposed opposite to each other; at least one of the bottom (231), the first side (232) and the second side (233) may be provided with a reflective layer.

[0014] In this application, by providing a reflective layer on the surface of the groove (230), the propagation path of light emitted from the light-emitting element (210) that cannot enter the window glass (100) through the side (130) can be changed, so that these light rays can enter the window glass (100) under the action of the reflective layer. This improves the utilization rate of light, allows the use of a smaller power light-emitting element, helps to reduce costs and miniaturize the lighting device, and also helps to reduce the temperature inside the groove so that the light-emitting element is in a suitable temperature range.

[0015] In some possible implementations, the lighting device (200) may also include a wiring harness (240) and a cable chain (250); the cable chain (250) may include a fixed end and a movable end, and the cable chain (250) may be provided with a wiring harness track; the wiring harness (240) may be provided in the wiring harness track, and one end of the wiring harness (240) extending from the movable end may be connected to the light-emitting element (210).

[0016] In this application, by placing the wiring harness (240) on the wiring harness track of the cable chain (250), it is possible to prevent the wiring harness (240) from being twisted / knotted / damaged due to the movement of the lighting device (200) with the window glass (100), which is beneficial to improving the service life of the wiring harness (240).

[0017] In some possible implementations, the window glass (100) can be a rear windshield, a sunroof, or a door glass.

[0018] In some possible implementations, the fluorescent layer (111, 121) may include a pattern drawn with a fluorescent pen containing fluorescent material, and / or a sticker containing fluorescent material.

[0019] In some possible implementations, the curvature of the first surface (110) and the second surface (120) can be less than or equal to 10 degrees.

[0020] In this application, the curvature of the car window glass is set to within 10 degrees, which is beneficial to make the light propagate in the car window glass as much as possible by total internal reflection.

[0021] In some possible implementations, the lighting device (200) can be used to hold the window glass (100) at the first end via a groove (230).

[0022] In this application, the lighting device (200) is laminated with the window glass (100) through the groove (230), which simplifies the structure and installation process of the lighting device.

[0023] In some possible implementations, the portion of the light structure (220) located at the opening of the groove (230) can be made of silicone.

[0024] In this application, since the car window glass is embedded in the lighting device through a groove, and the opening of the groove is made of flexible materials such as silicone, it can prevent knocking noises caused by vehicle vibration between the lighting structure and the car window glass.

[0025] In some possible implementations, the window glass (100) may include a visible portion (101) and an invisible portion (102); wherein, the visible portion (101) may include the portion of the window glass (100) exposed to the user's field of vision when it is installed in the vehicle, and the invisible portion (102) may include the portion of the window glass (100) other than the visible portion (101). The first end of the window glass (100) may belong to the invisible portion (102).

[0026] In this application, by placing the lighting device (200) in the invisible part (102) of the window glass (100), it is possible to avoid the lighting device (200) affecting the shape of the vehicle.

[0027] In a second aspect, an intelligent driving device is provided, which may include the lighting device described in the first aspect and any possible implementation thereof. For example, the intelligent driving device may be a vehicle. Attached Figure Description

[0028] Figure 1 is a schematic diagram of a lighting device provided in an embodiment of this application;

[0029] Figure 2 is a schematic diagram of the scenario where incident light enters an optically less dense medium from an optically denser medium at different incident angles, according to an embodiment of this application.

[0030] Figure 3 is a schematic diagram of the evanescent wave phenomenon under total internal reflection conditions provided in the embodiments of this application;

[0031] Figure 4 is a schematic diagram of a working scenario of the lighting device 200 provided in an embodiment of this application;

[0032] Figure 5 is a schematic diagram of several structural forms of the groove 230 provided in the embodiments of this application;

[0033] Figure 6 is a schematic diagram of another working scenario of the lighting device 200 provided in the embodiment of this application;

[0034] Figure 7 is a schematic diagram of a lighting device 200 provided in an embodiment of this application;

[0035] Figure 8 is a schematic diagram of one arrangement of the lighting device 200 provided in an embodiment of this application;

[0036] Figure 9 is a schematic diagram of the visible portion 101 and the invisible portion 102 of the vehicle window glass 100 provided in the embodiment of this application. Detailed Implementation

[0037] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0038] The following detailed description and accompanying drawings of the embodiments are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application, that is, this application is not limited to the described embodiments.

[0039] Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and other forms such as the third-person singular "comprises" and the present participle "comprising" are interpreted as open and inclusive, meaning "including, but not limited to." In the description, terms such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this application. The illustrative representations of the foregoing terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be included in any suitable manner in any of the embodiments or examples.

[0040] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0041] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structures in the embodiments of this application. It should also be noted in the description of the embodiments of this application that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0042] In this application, the term "embodiment" is used to mean that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. Those skilled in the art will explicitly and implicitly understand that the embodiments described in this application can be combined with other embodiments.

[0043] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0044] In addition, the use of “based on” implies openness and inclusivity, because a process, step, calculation or other action “based on” one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0045] The terms “about,” “approximately,” or “approximately” used in this application embodiment include the stated value and the average value within an acceptable deviation range of a particular value, wherein the acceptable deviation range is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the particular quantity, i.e., the limitations of the measurement system.

[0046] As mentioned above, with the development of vehicle technology, users have increasingly higher demands for the riding experience. Installing ambient lighting in vehicles to improve the interior ambiance is a viable solution for enhancing the user's riding experience.

[0047] For example, some ambient lighting can be in the form of strips and can be installed on the dashboard, door trim, and center console of a vehicle to improve the atmosphere inside the car and enhance the user's riding experience. When lit, these ambient lights can display a single color or multiple colors, and the lighting effect can even change dynamically to enhance the user's visual enjoyment.

[0048] For example, some car models may feature LED lights arranged in a "starry sky" pattern on the ceiling. When lit, each LED light forms a "star" within the "sky," creating a starry effect and a romantic, luxurious atmosphere. This type of ambient lighting can also be called a "starry sky ceiling" design.

[0049] However, neither the strip-shaped ambient lights installed on the vehicle door trim, center console, or other parts, nor the "starry sky" style ambient lights, can support users to customize the patterns that the ambient lights will display when they are turned on.

[0050] Furthermore, while users can apply a film with laser-engraved patterns to the sunroof and install lights around it to display the corresponding pattern when the lights are illuminated, vehicle manufacturers typically do not offer this feature on sunroofs due to varying user preferences and the high cost of laser engraving. In other words, this type of ambient lighting solution is usually found in aftermarket modifications and is only suitable for the vehicle's aftermarket. Moreover, even if a user designs their own laser-engraved pattern on the film, changing the pattern displayed when the ambient lights are on after the film is applied requires replacing the entire film, leading to excessive cost and inconvenience.

[0051] In view of this, embodiments of this application provide a lighting device and a vehicle. The lighting device can excite a fluorescent pattern on the surface of the vehicle window when illuminated, and supports personalized design of the fluorescent pattern by the user, thereby enhancing the user's interactive experience and interactivity with the vehicle.

[0052] For example, FIG1 is a schematic diagram of a lighting device provided in an embodiment of the present application.

[0053] In Figure 1, for the window glass 100, direction 1 can represent the thickness direction of the window glass, direction 2 can represent the length direction of the window glass, and direction 3 can represent the width direction of the window glass. For the lighting device 200, direction 1 can represent the width direction of the lighting device, direction 2 can represent the length direction of the lighting device, and direction 3 can represent the width direction of the lighting device. This is a general explanation here and will not be described separately later.

[0054] Referring to Figure 1, the vehicle window glass 100 may include surfaces 110 and 120 disposed opposite to each other along its thickness direction. Surfaces 110 and / or 120 may be used to provide a fluorescent layer; for example, surface 110 may be used to provide a fluorescent layer 111, and / or surface 120 may be used to provide a fluorescent layer 111. The fluorescent layers (111, 121) may contain a fluorescent material; when excited, the fluorescent layers will emit fluorescence.

[0055] Referring to Figure 1, the vehicle window glass 100 may also include a left end, a right end, a front end, and a rear end. For example, from the perspective of Figure 1, surfaces 110 and 120 may be the upper and lower surfaces of the vehicle window glass 100, respectively; in addition to the upper and lower surfaces, the vehicle window glass 100 may also include a side portion at the left end, a side portion at the right end, a side portion at the front end, and a side portion at the rear end.

[0056] A single side portion may include at least one side surface. For example, in the view of FIG1, the left side, right side, front side, and rear side surface of the vehicle window glass 100 may constitute its left end, right end, front end, and rear end side portion, respectively.

[0057] The lighting device 200 may include a light-emitting element 210 and a lighting structure 220 (also referred to as a lamp structure 220). The lighting structure 220 may be provided with a groove 230, which allows the first end of the vehicle window glass 100 to be embedded into the lighting device 200. The light-emitting element 210 may be used to emit light to excite a fluorescent material to emit fluorescence.

[0058] The first end can be any end of the window glass 100. For example, in Figure 1, the left end of the window glass 100 can correspond to the first end; in other implementations, the first end can also be the right end, front end, or rear end of the window glass 100, and this application embodiment does not limit this. For ease of explanation, the side of the first end is referred to as side 130; side 130 allows light to enter the window glass 100.

[0059] For example, referring to FIG1, the side portion 130 of the first end of the vehicle window glass 100 can be disposed in the groove 230, so that the vehicle window glass 100 is embedded in the lighting device 200. When the light-emitting element 210 emits light, the light emitted by the light-emitting element 210 will enter the vehicle window glass 100 through the side portion 130; correspondingly, the fluorescent layer (111, 121) disposed on the surface (110, 120) of the vehicle window glass 100 will emit fluorescence when excited by these lights. When the vehicle window glass 100 is embedded in the lighting device 200 as shown in FIG1, if the length of the lighting device 200 is less than the length of the vehicle window glass 100, due to the limitation of the length of the lighting device 200, a part of the side portion 130 can be located in the groove 230, while another part of the side portion will be outside the groove 230.

[0060] For example, when the lighting device 200 is embedded in the window glass 100, the fixing between the window glass 100 and the lighting device 200 can be achieved by the structure of the lighting device 200 itself, or by providing corresponding parts for fixing the two.

[0061] For example, the lighting structure 220 may have a clamping function in the groove 230 (e.g., the opening of the groove 230 can provide clamping force through deformation); in this case, the lighting device 200 can clamp the window glass 100 through the groove 230, keeping it fixed to the window glass 100. Alternatively, the window glass 100 can be embedded in the lighting device 200 as shown in Figure 1, and the lighting device 200 can be fixed to the window glass 100 using tape.

[0062] Assume that a fluorescent layer 121 is provided on the surface 120 of the vehicle window glass 100; assume that the fluorescent layer 121 has an "A" shaped pattern, and that the pattern is colorless and transparent when not activated. The following, with reference to Figure 1, provides an exemplary description of the appearance of the front and rear vehicle windows 100 when the lighting device 200 is illuminated.

[0063] Referring to Figure 1, when the light-emitting element 210 is not emitting light, the fluorescent layer 121 is not activated. Since the "A"-shaped pattern is colorless and transparent, the window glass 100 will not display the pattern at this time, and correspondingly, the appearance of the window glass 100 will be similar to that when the fluorescent layer 121 is not provided. When the light-emitting element 210 emits light, the light emitted from the light-emitting element 210 will enter the window glass 100 through the side portion 130. During the propagation of this light within the window glass 100, it will excite the fluorescent layer 121 on the surface 120. When the fluorescent layer 121 is excited and emits fluorescence, the window glass 100 will display the "A"-shaped pattern.

[0064] In some embodiments, the vehicle manufactured by the OEM may include a window glass 100 and a lighting device 200, and one end of the window glass 100 may be embedded into the lighting device 200 through a groove 230; when the vehicle leaves the factory, the surface of the window glass 100 may not have any fluorescent layer (111, 121). When the user uses the vehicle, the user may set a fluorescent pattern on the surface of the window glass 100 (110, 120) according to their personal preferences.

[0065] In one example, a user can use a highlighter to draw a pattern on the surface 110 of a car window 100, and the pattern drawn on the surface 110 will contain a fluorescent material; furthermore, the user can also change the pattern drawn on the surface 110 using the highlighter. In this example, the pattern drawn with the highlighter can correspond to a fluorescent layer 111.

[0066] In another example, a user can attach a sticker containing fluorescent material to surface 110, which may correspond to fluorescent layer 111.

[0067] In this embodiment, the lighting device 200 can excite a fluorescent pattern on the surface of the vehicle window glass 100 when it is lit, and supports the user's personalized design of the fluorescent pattern, which can enhance the user's interactive experience and interactivity with the vehicle.

[0068] The above description, in conjunction with Figure 1, illustrates the appearance of the lighting device 200 illuminating the front and rear window glass 100. The following description, in conjunction with Figures 2 to 4, illustrates the operation of the lighting device 200.

[0069] For example, Figure 2 is a schematic diagram of a scenario in which incident light rays enter an optically less dense medium from an optically denser medium at different incident angles, according to an embodiment of this application.

[0070] When light travels from a denser medium (i.e., a medium with a higher refractive index) to a less dense medium (i.e., a medium with a lower refractive index), if the angle of incidence is greater than the critical angle, the refracted light will disappear, and all incident light will be reflected and not enter the less dense medium; this is known as total internal reflection. The following example, illustrating the propagation process of incident light A and B in Figure 2, serves as a case study.

[0071] Referring to Figure 2, for incident light A, since its angle of incidence is less than the critical angle, refraction will occur when incident light A enters the optically less dense medium from the optically denser medium; correspondingly, after entering the optically less dense medium, the light ray will propagate in the optically less dense medium as refracted light A. For incident light B, since its angle of incidence is greater than the critical angle, total internal reflection will occur when incident light B enters the optically less dense medium from the optically denser medium; that is, the light ray will not enter the optically less dense medium, but will continue to propagate in the optically denser medium as reflected light B.

[0072] In practical use, the area surrounding the car window glass 100 (especially on both sides of surfaces 110 and 120) is often filled with air. Compared to the air surrounding the car window glass 100, the car window glass 100 can have a higher refractive index. That is to say, the car window glass 100 can act as an optically denser medium, and the air surrounding the car window glass 100 can act as an optically less dense medium.

[0073] Accordingly, the scene shown in Figure 2 can be understood as the scene when light propagating inside the car window glass 100 enters the surrounding air at different incident angles through the surfaces 110 and 120.

[0074] For example, Figure 3 is a schematic diagram of the evanescent wave phenomenon under total internal reflection conditions provided in the embodiments of this application.

[0075] When light travels from an optically denser medium to an optically less dense medium, total internal reflection will occur if the angle of incidence exceeds the critical angle. In total internal reflection, although the light wave does not pass through the interface between the two media, it will propagate parallel to the interface. The complex amplitudes of its electric and magnetic fields will decay exponentially in the direction perpendicular to the interface, a phenomenon known as evanescent wave propagation.

[0076] If fluorescent material is placed in the area where the evanescent phenomenon occurs (i.e., the evanescent region shown in Figure 3), the fluorescent material in the area will emit fluorescence after being excited by these lights.

[0077] The total internal reflection phenomenon and the evanescent wave phenomenon have been illustrated above with reference to Figure 2. The operation of the lighting device 200 will be illustrated below with reference to Figure 4.

[0078] For example, Figure 4 is a schematic diagram of a working scenario of the lighting device 200 provided in an embodiment of this application.

[0079] When the lighting device 200 is turned on, the light-emitting element 210 emits light in multiple directions toward the side portion 130; for example, light rays 1 to 7 arranged clockwise in Figure 4 will be emitted from the light-emitting surface 211 of the light-emitting element 210. The light-emitting element 210 can be disposed in the recess 230, and the light-emitting surface 211 can face the opening direction of the recess 230. The light emitted from the light-emitting element 210 can enter the vehicle window glass 100 through the side portion 130.

[0080] The following uses the propagation process of light 2 as an example to illustrate the luminescence of the fluorescent layers (111, 121) when the lighting device 200 is lit. It should be understood that Figure 4 only shows the propagation of light 2 in the car window glass 100; the propagation of other light rays (such as light 1 and light rays 3 to 7) in the car window glass 100 is not shown in Figure 4.

[0081] For example, since the lighting device 200 clamps the window glass 100 at the first end through the groove 230, the light 2 emitted from the light-emitting element 210 will enter the window glass 100 through the side wall 130; correspondingly, during its propagation within the window glass 100, total internal reflection will occur when the incident angle of the light 2 at surfaces 110 and 120 is large. Furthermore, a luminous wave phenomenon will exist at the total internal reflection positions of surfaces 110 and 120.

[0082] In one example, assume that surface 110 is provided with a fluorescent layer 111, which may include regions 1111 and 1112. Referring to Figure 4, light 2 will undergo total internal reflection at the location corresponding to region 1111 on surface 110, where evanescent wave phenomenon will also occur; correspondingly, the fluorescent material in region 1111 will be excited by the evanescent wave and emit fluorescence. Similarly, light will also undergo total internal reflection at the location corresponding to region 1112 on surface 110; the fluorescent material in region 1112 will also emit fluorescence under the excitation of the evanescent wave.

[0083] In another example, suppose surface 120 is provided with a fluorescent layer 121, which may include regions 1211 and 1212. Referring to Figure 4, light 2 will undergo total internal reflection at a position on surface 120 corresponding to region 1211, where an evanescent wave will also be present. The fluorescent material in region 1211 will emit fluorescence under the excitation of the evanescent wave. Similarly, another position of total internal reflection of light 2 on surface 120 may correspond to region 1212; correspondingly, the fluorescent material in region 1212 will emit fluorescence under the excitation of the evanescent wave.

[0084] Since the light-emitting element 210 emits light towards the side portion 130 in multiple directions, different light rays can enter the window glass 100 from the side portion 130 at different incident angles. Consequently, these light rays will have different propagation paths during their propagation within the window glass 100, causing total internal reflection to occur at different positions on the surfaces 110 and 120. This excites fluorescent substances in different areas of the fluorescent layers (111, 121). Therefore, from the user's visual perspective, the entire fluorescent layer (111, 121) will fluoresce and display corresponding patterns when the lighting device 200 emits light.

[0085] It is understood that the shapes of the vehicle window glass 100, the lighting device 200, and their components shown in Figure 1 are merely examples. In actual implementations, the vehicle window glass 100, the lighting device 200, and their components may adopt other shapes and structures.

[0086] In some embodiments, the surfaces 110 and 120 of the window glass 100 may be curved, rather than flat as shown in FIG1. ​​For example, the window glass 100 may have a curvature of up to 10 degrees.

[0087] In some other embodiments, unlike the scheme shown in FIG1, the lighting structure 220 may be composed of multiple parts.

[0088] In some other embodiments, the window glass 100 may be laminated glass, which will have a multi-layered structure in its thickness direction; correspondingly, the side portion 130 may include a plurality of side surfaces disposed along the thickness direction of the window glass; in this case, light will be deflected when it propagates in the window glass 100 from surface 110 to surface 120 (or in the opposite direction).

[0089] In other embodiments, unlike the scheme shown in FIG1, the lighting device 200 may employ other shapes, or may employ more or fewer light-emitting elements 210. For example, the lighting device 200 may employ strip-shaped light-emitting elements that extend along the length of the lighting device. Another example is that the light-emitting surface of the light-emitting element 210 may be curved. Yet another example is that in the scheme shown in FIG1, the lighting device 200 uses LED beads as light-emitting elements and has six LED beads; in specific implementations, depending on the light distribution requirements, the lighting device 200 may have more or fewer LED beads, such as three, ten, etc.

[0090] In some embodiments, unlike the square groove shown in FIG1, the groove 230 may have other regular or irregular shapes. For example, the sides of the groove 230 may be curved to match the curvature of the window glass 100. As another example, the light structure 220 may be provided with bosses or grooves to mount / fix the light-emitting element 210. The following description, in conjunction with FIG5, provides examples.

[0091] For example, FIG5 is a schematic diagram of several shapes of the groove 230 provided in the embodiments of this application.

[0092] As shown in Figure 5, the groove 230 may include a bottom 231 and opposing sides 232 and 233. In Figure 5, it is assumed that the sides 232 and 233 of the groove 230 are planar, and that the bottom 231 of the groove 230 is planar in areas other than the boss / recess.

[0093] For example, the bottom of the groove 230 can be a flat surface, as shown in Method 1 in Figure 5; Figure 1 uses Method 1 to set its groove 230.

[0094] For example, on the side where the groove 230 is located, the light structure 220 can be provided with a boss; as shown in mode 2 of FIG5, the boss can be provided at the bottom of the groove 230, and the light-emitting element 210 can be provided at the boss. In this case, the outer surface of the boss and the planar portion of the area surrounding the boss can together form the bottom 231 of the groove 230.

[0095] For example, the light structure 220 may have a recess on the side where the groove 230 is located; the light-emitting element 210 may be placed in this recess, as shown in mode 3 in Figure 5. In this case, the outer surface of the recess and the planar portion of the area surrounding the recess may together form the bottom 231 of the groove 230.

[0096] In some possible implementations, to improve light utilization, a reflective layer can be provided on at least one surface of the groove 230. The following description, in conjunction with Figure 6, illustrates an exemplary method for setting the reflective layer.

[0097] For example, Figure 6 is a schematic diagram of another working scenario of the lighting device 200 provided in the embodiments of this application.

[0098] In Figure 6, it is assumed that the sides 232 and 233 of the groove 230 are provided with reflective layers 2321 and 2331 respectively, and the bottom 231 is not provided with a reflective layer.

[0099] Referring to Figure 6, for light 8, when no reflective layer 2321 is provided on the side 232 of the groove 230, light 8 will be absorbed or diffusely reflected by the side 232, making it difficult for the light to enter the window glass 100 from the side 130. However, when a reflective layer 2321 is provided on the side 232, light 8 will be reflected by the reflective layer 2321, and thus can enter the window glass 100 through the side 130; furthermore, the light 8 can undergo total internal reflection within the window glass 100.

[0100] In some possible implementations, a reflective layer may also be provided on the bottom surface 231 to further improve the utilization of light.

[0101] In this embodiment, by providing a reflective layer on the surface of the groove 230, the propagation path of light emitted from the light-emitting element 210 that could not pass through the side 130 and enter the window glass can be changed, so that these light rays can enter the window glass 100 under the action of the reflective layer. This improves the utilization rate of light, allows the use of a smaller power light-emitting element, helps reduce costs and miniaturize the lighting device, and also helps reduce the temperature inside the groove so that the light-emitting element is within a suitable temperature range.

[0102] In real-world scenarios, if the design of the window glass 100, the lighting device 200, and their relative positions is inappropriate, light entering the window glass 100 via the side 130 may subsequently escape through surfaces 110 and 120 into the surrounding air during its propagation within the window glass 100. On one hand, this light emanating from surfaces 110 and 120 may enter the user's field of vision, causing them to perceive light leakage at the window, leading to complaints about vehicle quality. On the other hand, if the light exits through surfaces 110 and 120, certain areas of the window glass may lack luminescence, preventing the fluorescent material in those areas from being excited and emitting fluorescence. This will affect the luminescence of the fluorescent pattern on the surface of the window glass 100. For example, if light 2 in Figure 4 does not undergo total internal reflection near region 1111, but instead exits from surface 110 into the air, then light 2 will not propagate to the vicinity of region 1112, which will cause the fluorescent material in region 1112 to fail to emit fluorescence when the lighting device 200 is turned on.

[0103] For example, FIG7 is a schematic diagram of a lighting device provided in an embodiment of this application.

[0104] In Figure 7, it is assumed that the light-emitting surface 211 of the light-emitting element 210 is a plane, and that the shape of the groove 230 is the same as that in Method 1 of Figure 5. In Figure 7, distance A can represent the width of the light-emitting surface 211; distance B can represent the width of the groove 230; distance C can represent the distance between the window glass 100 and the light-emitting element 210 when the window glass 100 is embedded in the lighting device 200; and distance D can represent the depth of the groove 230.

[0105] For example, in the scenario shown in Figure 7, when the light-emitting element 210 illuminates the side 130, the closer the illumination conditions are to direct illumination conditions, the smaller the angle of incidence will be when the light enters the window glass 100 through the side 130; correspondingly, during the propagation of the light in the window glass 100, the angle of incidence will be larger at the surfaces 110 and 120, and the probability of the light escaping from the surfaces 110 and 120 into the surrounding air will be smaller.

[0106] In one example, with the widths of the groove 230 and the window glass 100 remaining unchanged, by increasing the width of the light-emitting surface 211 (i.e., the distance A), the illumination conditions of the light-emitting element 210 on the side 130 can be made closer to direct illumination conditions, so that the light can propagate at the surfaces 110 and 120 as much as possible by total internal reflection.

[0107] In another example, with the width of the groove 230 and the window glass 100 remaining unchanged, since the light-emitting element 210 is disposed in the groove 230, by increasing the depth of the groove 230 (i.e., the distance D), the illumination conditions of the light-emitting element 210 on the side 130 can be closer to the direct illumination conditions, so that the light can propagate at the surfaces 110 and 120 as much as possible in the manner of total internal reflection.

[0108] In some possible implementations, the ratio of the width of the light-emitting surface 211 of the light-emitting element 210 to the width of the groove 230 (e.g., the ratio of distance A to distance B in Figure 7) can be greater than or equal to a certain threshold. For example, the first threshold can be 0.75 or 0.6; if the depth of the groove 230 exceeds its width, the first threshold can also be reduced to 0.5.

[0109] In this embodiment, the ratio of the width of the light-emitting surface 211 of the light-emitting element 210 to the width of the groove 230 is set above the corresponding threshold. This allows the illumination of the side portion 130 by the light-emitting element 210 to be close to the direct illumination condition, ensuring that the light propagates in the window glass 100 as much as possible by total internal reflection. This helps to reduce the possibility of light leakage and ensures that the fluorescent layer emits light normally.

[0110] In some possible implementations, the depth of the groove 230 (such as the distance D in Figure 7) can be greater than or equal to a certain threshold. For example, this threshold can be 8 cm or 7 cm; if the groove has a small curvature, the threshold can also be reduced to 5 cm. For another example, in the scenario shown in Figure 7, the distance D can be greater than or equal to 5 cm and less than 8 cm.

[0111] In one example, when no reflective layer is provided on the surface (231, 232, 233) of the groove 230, part of the light emitted by the light-emitting element 210 will illuminate the surface of the groove and be absorbed by the surface of the groove; the other part will illuminate the side 130 and enter the window glass. When the groove has a large depth, the illumination conditions of this part of the light on the side 130 are closer to the direct illumination conditions, so that it can propagate in the window glass by total internal reflection.

[0112] In another example, when a reflective layer is provided on the surface of the groove, the light emitted by the light-emitting element 210 that illuminates the surface of the groove can enter the window glass under the action of the reflective layer. Some of these rays may have a small angle of incidence at surfaces 110 and 120 when propagating in the window glass and thus exit into the surrounding air. When the groove has a large depth, these rays will undergo multiple reflections from the light-emitting element until they exit the surface 110 and 120 of the window glass 100. The reflection of light inevitably results in a loss of light intensity, causing the light emitted from surfaces 110 and 120 to have a lower light intensity, which can also reduce the user's perception of light leakage.

[0113] In this embodiment, the depth of the groove 230 is set above the corresponding threshold, which makes the illumination conditions of the light-emitting element 210 on the side 130 closer to the direct illumination conditions. Accordingly, the light will propagate as much as possible in the form of total internal reflection at the surfaces 110 and 120 of the car window glass 100, which can reduce light leakage and reduce the user's perception of light leakage, thus ensuring the normal light emission of the fluorescent pattern.

[0114] In some possible implementations, when the lighting device 200 is embedded in the window glass 100, the distance between the window glass 100 and the light-emitting element 210 (such as distance C in Figure 7) can be greater than or equal to a certain threshold. For example, the threshold can be 1 cm or 0.8 cm; considering the vibration amplitude of the window glass 100 on the vehicle, the threshold can be reduced to 0.5 cm.

[0115] In this embodiment of the application, by limiting the distance between the window glass 100 and the light-emitting element 210, it is possible to avoid collisions between the window glass and the light-emitting element caused by vehicle vibration, which is beneficial to improving the service life of the lighting device.

[0116] In some possible implementations, the part of the light structure 220 that contacts the window glass can be made of a flexible material, such as silicone.

[0117] In this embodiment, the contact area between the lighting structure 220 and the window glass 100 is made of a flexible material, which can reduce the impact on the lighting structure 220.

[0118] For example, the window glass 100 can be located on the top, side, or rear of the vehicle. For instance, the window glass 100 can be a sunroof. Another example is that the window glass 100 can be a side window, which can be located in a door; that is, the window glass 100 can be a door window. Yet another example is that the window glass 100 can be a rear windshield. In some possible implementations, the window glass 100 can also be other glass located on the vehicle, such as the rear quarter window. This application embodiment does not limit the arrangement position of the window glass on the vehicle.

[0119] The arrangement of the lighting device 200 will be illustrated below with reference to Figures 8 and 9, taking the window glass 100 as the door glass as an example.

[0120] Referring to Figure 8, the vehicle door may include glass lifting brackets 310 and 320; the vehicle window glass 100 may be mounted on the glass lifting brackets 310 and 320, which can drive the vehicle window glass to rise or fall in direction 3. In the scenario of Figure 8, direction 3 can be the height direction of the vehicle.

[0121] The lighting device 200 can be clipped to the lower end of the vehicle window glass 100. The lighting device 200 may also include a wiring harness 240; one end of the wiring harness 240 can be connected to the light-emitting element 210, and the other end can be connected to the vehicle's power supply through the vehicle's power supply line.

[0122] In some possible implementations, the lighting device 200 may also include a cable chain 250. For example, referring to FIG8, the cable chain 250 may include a fixed end and a movable end; a wiring harness 240 may be disposed in the wiring harness track of the cable chain 250, with one end of the wiring harness 240 extending from the movable end of the cable chain 250 being connected to the light-emitting element 210, and the other end extending from the fixed end being connected to the vehicle's power supply.

[0123] Referring to Figure 9, when installed in a vehicle, the window glass 100 may include a visible portion 101 and an invisible portion 102. For example, when installed in a vehicle, the visible portion of the window glass 100 may be exposed within the user's field of vision; the invisible portion 102 may be obscured by the vehicle's sheet metal parts, interior trim parts, or other components, making it difficult for the user to directly observe the invisible portion 102 of the window glass 100.

[0124] For example, for a car door glass, its invisible part can be below the waterline of the vehicle, and its visible part can be above the waterline; in Figure 9, the dashed line in the window glass 100 can be understood as the dividing line between the visible part 101 and the invisible part 102.

[0125] As shown in Figure 9, the first end of the window glass 100 can be located in the invisible portion 102. For example, the lighting device 200 can hold the window glass in the invisible portion 102 of the window glass 100.

[0126] In this embodiment of the application, by placing the lighting device 200 in the invisible part 102 of the window glass 100, it is possible to avoid the lighting device 200 affecting the shape of the vehicle.

[0127] In the above embodiment, the window glass 100 is the door glass; for other types of window glass such as sunroof glass and rear windshield glass, these window glass can also include visible and invisible parts.

[0128] For example, the window glass 100 can be tempered glass or laminated glass.

[0129] In some possible implementations, the curvature of the car window glass 100 can be less than or equal to a certain threshold. For example, the curvature of the car window glass can be less than or equal to 10 degrees, so that light can propagate in the car window glass in a manner that maximizes total internal reflection.

[0130] The lighting device provided in the embodiments of this application has been described above with reference to Figures 1 to 9.

[0131] This application also provides an intelligent driving device, which may include any one of the lighting devices 200 shown in Figures 1 to 9. For example, the intelligent driving device may be a vehicle.

[0132] The term "vehicle" in this application refers to vehicles in a broad sense, including transportation vehicles (such as commercial vehicles, passenger cars, motorcycles, flying cars, trains, etc.), industrial vehicles (such as forklifts, trailers, tractors, etc.), engineering vehicles (such as excavators, bulldozers, cranes, etc.), agricultural equipment (such as lawnmowers, harvesters, etc.), amusement equipment, toy vehicles, etc. For example, vehicles in this application may include pure electric vehicles (pure electric vehicles / battery electric vehicles, pure EVs / battery EVs), hybrid electric vehicles (HEVs), range-extended electric vehicles (REEVs), plug-in hybrid electric vehicles (PHEVs), or new energy vehicles (NEVs), etc.

[0133] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0134] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0135] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0136] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0137] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0138] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A lighting device (200), characterized in that, The lighting device (200) includes a light-emitting element (210) and a lighting structure (220); The lighting structure (220) is provided with a groove (230), and the lighting structure (220) is used to embed the first end of the window glass (100) into the lighting device (200) through the groove (230); The light-emitting element (210) is used to emit light to excite the fluorescent material to emit fluorescence; The vehicle window glass (100) includes a first surface (110) and a second surface (120) disposed opposite to each other along the thickness direction of the vehicle window glass (100), and a side portion (130) disposed at the first end. The side portion (130) is used to allow the light to enter the vehicle window glass (100). At least one of the first surface (110) and the second surface (120) is used to provide a fluorescent layer (111, 121) containing the fluorescent material.

2. The lighting device (200) according to claim 1, characterized in that, The light-emitting element (210) is disposed in the groove (230), and the light-emitting surface (211) of the light-emitting element (210) is disposed facing the opening direction of the groove (230); The ratio of the width of the light-emitting surface (211) to the width of the groove (230) is greater than or equal to 0.

5.

3. The lighting device (200) according to claim 1 or 2, characterized in that, The depth of the groove (230) is greater than or equal to 5 cm.

4. The lighting device (200) according to any one of claims 1 to 3, characterized in that, When the lighting device (200) engages with the window glass (100) through the groove (230), the distance between the light-emitting element (210) and the side portion (130) is greater than or equal to 5 mm.

5. The lighting device (200) according to any one of claims 1 to 4, characterized in that, The groove (230) includes a bottom (231), and a first side (232) and a second side (233) disposed opposite to each other; At least one of the bottom (231), the first side (232), and the second side (233) is provided with a reflective layer.

6. The lighting device (200) according to any one of claims 1 to 5, characterized in that, The lighting device (200) also includes a wiring harness (240) and a cable chain (250); The cable chain (250) includes a fixed end and a movable end, and the cable chain (250) is provided with a wire harness track; The wire harness (240) is disposed in the wire harness track, and one end of the wire harness (240) extending from the movable end is connected to the light-emitting element (210).

7. The lighting device (200) according to any one of claims 1 to 6, characterized in that, The window glass (100) is a rear windshield, sunroof, or door glass.

8. The lighting device (200) according to any one of claims 1 to 7, characterized in that, The fluorescent layers (111, 121) include patterns drawn with a fluorescent pen containing fluorescent material, and / or stickers containing fluorescent material.

9. The lighting device (200) according to any one of claims 1 to 8, characterized in that, The curvature of the first surface (110) and the second surface (120) is less than or equal to 10°.

10. The lighting device (200) according to any one of claims 1 to 9, characterized in that, The lighting device (200) is used to clamp the window glass (100) at the first end via the groove (230).

11. The lighting device (200) according to claim 10, characterized in that, The portion of the light structure (220) in the groove that comes into contact with the window glass is made of silicone.

12. The lighting device (200) according to any one of claims 1 to 11, characterized in that, The vehicle window glass (100) includes a visible portion (101) and an invisible portion (102). The visible portion (101) includes the portion of the vehicle window glass (100) that is exposed to the user's field of vision when the vehicle window glass (100) is installed in the vehicle. The invisible portion (102) includes the portion of the vehicle window glass (100) other than the visible portion (101). The first end belongs to the invisible portion (102).

13. A vehicle, characterized in that, Includes the lighting device (200) as described in any one of claims 1 to 12.

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