CN222122941U - Lighting device and vehicle - Google Patents

Abstract

A lighting device and a means of transportation, wherein the lighting device includes a bracket, a light-transmitting cover plate, a light source assembly and a light scattering member. The light-transmitting cover plate is connected to the bracket so that a receiving cavity is formed between the light-transmitting cover plate and the bracket. The light source assembly is mounted on the bracket. The light scattering member is arranged in the receiving cavity, and a plurality of first zones and a plurality of second zones are arranged on the light scattering member, at least part of the first zones and at least part of the second zones are alternately distributed, and a single or a plurality of crystal particles for reflecting light in different directions are arranged in the first zone and the second zone, and the size of the crystal particles in the first zone is smaller than the size of the crystal particles in the second zone. The present application arranges the first zone and the second zone at different positions on the light scattering member, and arranges crystal particles of different sizes in the first zone and the second zone, so that different reflection effects can be presented through the reflection of light by the crystal particles in different zones, so that different visual effects of light and dark can be achieved when the lighting device is observed from different viewing angles.

Description

Lighting device and vehicle

Technical Field

The application relates to the technical field of illumination, in particular to an illumination device and a vehicle.

Background

Automotive headlamps are the most marked parts of a vehicle. Existing headlamps focus on high and low beam illumination and signaling surrounding pedestrian traffic during vehicle operation. The visual effect that the headlight was designed and was lighted is comparatively single, and the headlight is comparatively unanimous at the visual effect on different angles under operating condition, lacks the discernment degree.

Disclosure of utility model

In view of the above, the present application provides a lighting device and a vehicle to solve the problem that the existing automotive headlight has consistent visual effects and lacks recognition.

In a first aspect, an embodiment of the present application provides a lighting device, including a bracket, a light-transmitting cover plate, a light source assembly, and a light scattering member. The light-transmitting cover plate is connected to the support, so that a containing cavity is formed between the light-transmitting cover plate and the support. The light source component is arranged on the bracket and used for irradiating light beams into the accommodating cavity. The light scattering piece is arranged in the accommodating cavity, a plurality of first areas and a plurality of second areas are arranged on the light scattering piece, at least part of the first areas and at least part of the second areas are alternately distributed, single or a plurality of crystal particles are arranged in the first areas and the second areas, and the size of the crystal particles in the first areas is smaller than that of the crystal particles in the second areas. The crystal particles are provided with a plurality of first reflecting surfaces, and an included angle is formed between two adjacent first reflecting surfaces.

According to the lighting device provided by the embodiment of the application, the first area and the second area are arranged at different positions on the light scattering piece, and the crystal particles with different sizes are arranged in the first area and the second area, so that different reflection effects can be presented through the reflection effect of the crystal particles in different areas on light rays, and the visual effect of different brightness can be realized when the lighting device is observed at different visual angles.

In one possible implementation, the crystal particles are disposed on one side of the light scattering member along the light-emitting direction of the illumination device. In a specific embodiment, the crystal particles are disposed on the light scattering member and face one side of the light-transmitting cover plate, the light generated by the light source assembly can be incident into the light scattering member from the light scattering member and face one side of the light source assembly, and then can exit from the first reflecting surface of the crystal particles to the light-transmitting cover plate, and the directions of the first reflecting surfaces of the crystal particles are different, so that the light emitted from the light scattering member faces different directions and finally can exit to the outside of the lighting device through the light-transmitting cover plate, and the light and shade effects felt by a person when observing the lighting device in different directions are different.

In one possible implementation, the crystal grain has a first dimension in a first direction and a second dimension in a second direction, the first direction being perpendicular to the second direction, the second dimension being greater than or equal to the first dimension. The crystal particles include first particles and second particles, the first size of the second particles being larger than the second size of the first particles. Wherein the largest dimension on the first particles is smaller than the smallest dimension on the second particles, i.e. the overall size of the first particles is smaller than the overall size of the second particles, the first particles may be arranged in the first region and the second particles may be arranged in the second region, so that the lighting device has different light and shade effects at different viewing angles.

In one possible implementation, the first size of the first particles is between 1mm and 3mm, and the second size of the first particles is between 1mm and 4mm. By making the first size and the second size of the first particles within the above size range, the difference between the first size and the second size can be smaller, the overall shape of the first particles can be presented as particles, when a plurality of particles are reflected in different directions by corresponding first reflecting surfaces, a person can receive light rays reflected by different crystal particles when moving and observing the lighting device between different positions, so that the person can feel the change of light and shade, feel that the light emitted by the lighting device shines like stars, and be bright and attractive.

In one possible implementation, the first size of the second particles is 15mm to 20mm, and the second size of the second particles is 30mm to 40mm. By making the first size and the second size of the second particles within the above size ranges, the difference between the first size and the second size is smaller, the overall shape of the second particles can be in the form of particles, and the overall size of the second particles is larger than that of the first particles, so that the reflection effect of the second particles is different from that of the first particles, and the visual effect of different brightness can be obtained when the lighting device is observed in different directions.

In one possible implementation, the crystal particles are polyhedrons. When the crystal particles are regular polyhedrons, the crystal particles may be regular polyhedrons, such as cubes, cuboids, etc., and the first reflecting surface is regular in shape. When the crystal particles are irregular polyhedrons, the shape of the first reflecting surface is irregular. The crystal particles in the shape of polyhedrons can all realize the reflection of light towards different directions.

In one possible implementation manner, the crystal particles are disposed on a surface, facing away from the light source assembly, of the light scattering member, a plurality of optical structures are disposed on a surface, facing toward the light source assembly, of the light scattering member, at least two second reflecting surfaces are disposed on the optical structures, an included angle is formed between two adjacent second reflecting surfaces, and the plurality of optical structures are used for homogenizing light. Before entering the light scattering piece, at least part of light emitted by the light source assembly can be reflected to the corresponding direction by the second reflecting surface of the optical structure, the reflected light can be reflected by the inner surface of the support again, and the light can be uniformly diffused in the accommodating cavity repeatedly, so that the light can be uniformly diffused in a large area range through the optical structure only by adopting fewer light sources such as LEDs and the like, the quantity of the light sources is reduced, the structure of the lighting device is simplified, and the cost is saved.

In one possible implementation, the optical structure comprises a columnar pattern or a dermatoglyph. When the optical structure is a columnar pattern, the optical structure has a certain length, and the length may be between 4mm and 8mm and the corresponding width may be between 1mm and 2mm, for example. When the optical structure is the dermatoglyph, the dermatoglyph is not a regular structure, and the surface of the light scattering piece, which faces the light source component, can be rough to form fine grains. No matter the optical structure is columnar pattern or leather pattern or the combination of columnar pattern and leather pattern, the effect of uniform light can be realized.

In one possible implementation, the light scattering element is integrally formed. The light scattering piece can be directly molded into corresponding crystal particles and optical structures in the molding process, so that the reliability of the integral structure of the light scattering piece can be ensured, the production and the manufacturing are convenient, the process is simplified, and the cost is saved.

In one possible implementation manner, along the light emitting direction of the lighting device, a light-proof coating is arranged on the surface of the light-transmitting cover plate, and a plurality of hollowed-out parts for light beam transmission are arranged on the light-proof coating. The hollowed-out part can be an area which is not covered by the light-proof coating on the light-proof cover plate. In the specific forming process, the anti-light-transmission coating can be coated on the set area of the light-transmission cover plate through the processes of spraying and the like, then the anti-light-transmission coating can be removed at the set position of the anti-light-transmission coating through the laser etching process, so that the area from which the anti-light-transmission coating is removed forms a hollowed-out part, the light-transmission cover plate can be not covered by the anti-light-transmission coating, and light can be transmitted from the hollowed-out part.

In one possible implementation, the hollowed-out portion is formed by a laser engraving process. Through radium carving technology, can promote the precision of preventing light transmission coating and get rid of, can form the fretwork portion that has the preset pattern.

In one possible implementation, the light-blocking coating is a black coating. Illustratively, the light-transmitting-resistant coating may be a coating composed of a black polycarbonate material having light-impermeable properties. Under the condition that the light source component does not emit light, the black anti-light-transmission coating can enable the appearance surface of the lighting device to show a black-painted effect, has impact on the vision and improves the identification degree.

In one possible implementation, the side of the support facing the light scattering element is white. Illustratively, the holder may be made of a white polycarbonate material having microscopically countless particles capable of reflecting light. After the light emitted by the light source assembly irradiates the optical structure, at least part of the light can be reflected to the support, the light reflected by the optical structure can enter the support and can be reflected by particles in the support material towards different directions, so that the effect of uniform light can be realized, and therefore, only fewer light sources such as LEDs and the like are needed, the light can be uniformly diffused in a large area through the cooperation of the optical structure and the support, the quantity of the light sources is reduced, the structure of the lighting device is simplified, and the cost is saved.

In one possible implementation, the light scattering member is connected to the bracket, and a space is provided between a surface of the light scattering member facing away from the light source assembly and the light-transmitting cover plate. Therefore, light reflected by crystal particles on a larger area of the light scattering piece can be emitted from the hollowed-out part at the same point on the transparent cover plate, and the visual effect when the lighting device is observed from different angles can be enhanced.

In one possible implementation manner, the light source assembly includes a light source and a circuit board, the light source is electrically connected with the circuit board, and the circuit board is connected to one side of the support, which is away from the light-transmitting cover plate, so that the circuit board can be prevented from occupying a space of the accommodating cavity between the support and the light-transmitting cover plate, and meanwhile, the inner surface of the support, which is located in the accommodating cavity, can be used for homogenizing light, and light is not blocked by the circuit board.

In one possible implementation, the support is provided with an opening, and the light source is aligned with the opening, so that light generated by the light source can be irradiated into the accommodating cavity through the opening.

In a second aspect, the present application also provides a vehicle, including the lighting device provided in the first aspect of the present application. The vehicle has similar technical effects as the lighting device, and is not described herein.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front view of a vehicle provided in an embodiment of the present application;

fig. 2 is a front view of an illumination device according to an embodiment of the present application;

FIG. 3 is a cross-sectional view at A-A of FIG. 2;

FIG. 4 is a front view of a bracket according to an embodiment of the present application;

FIG. 5 is a front view of a light source assembly according to an embodiment of the present application;

FIG. 6 is a schematic view of a light source assembly according to an embodiment of the present application mounted to a bracket;

FIG. 7 is a schematic view of a light scattering member according to an embodiment of the present application mounted to a bracket;

FIG. 8 is an enlarged view of FIG. 7 at B;

FIG. 9 is a cross-sectional view of a crystalline particle provided in one embodiment of the present application;

FIG. 10 is a cross-sectional view of a crystal grain according to another embodiment of the present application;

FIG. 11 is a side view of a light diffuser provided in an embodiment of the present application;

FIG. 12 is a schematic illustration of an anti-light-transmission coating according to an embodiment of the present application;

fig. 13 is a schematic view of an anti-light-transmitting coating provided by an embodiment of the application disposed on a light-transmitting cover plate.

Reference numerals:

1-a bracket;

11-opening;

12-a receiving cavity;

2-a light-transmitting cover plate;

21-a light-transmission-preventing coating;

211-hollowed-out parts;

3-a light source assembly;

31-a light source;

32-a circuit board;

4-a light scattering member;

41-crystal particles;

411-a first reflective surface;

42-optical structure;

421-a second reflective surface;

alpha-angle;

beta-angle;

10-an illumination device;

x-a first direction;

Y-a second direction;

z-light exit direction;

h1—a first dimension;

H2-second dimension;

C1-a first region;

C2-second region.

Detailed Description

For a better understanding of the technical solution of the present application, the following detailed description of the embodiments of the present application refers to the accompanying drawings.

It should be understood that the described embodiments are merely some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or b, and may mean that a single first exists while a single first and a single second exist. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the description of the present application, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying any particular importance unless otherwise expressly specified or stated, the term "plurality" is intended to be broadly construed, such as "connected" or "fixed" in either a fixed or removable or integral or electrical connection, or may be directly or indirectly connected via an intervening medium. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

Automotive headlamps are the most marked parts of a vehicle. Existing headlamps focus on high and low beam illumination and signaling of surrounding pedestrians during vehicle operation, such as cornering, braking, etc. The visual effect that the headlight was designed and was lighted is comparatively single, and the headlight is comparatively unanimous at the visual effect on different angles under operating condition, lacks the discernment degree.

Fig. 1 is a front view of a vehicle according to an embodiment of the present application, fig. 2 is a front view of a lighting device according to an embodiment of the present application, and referring to fig. 1 and 2, an embodiment of the present application provides a lighting device 10, where the lighting device 10 may be applied to an automobile, a ship, a motorcycle lamp, or an automotive interior, such as an atmosphere lamp. In addition, the lighting device 10 can be applied to house decoration, and the embodiment of the application is not limited. The embodiment of the present application will be described by taking the example in which the lighting device 10 shown in fig. 1 is applied to a headlight of an automobile.

Fig. 3 is a cross-sectional view at A-A of fig. 2, and referring to fig. 3, the lighting device includes a bracket 1, a light-transmitting cover plate 2, a light source assembly 3, and a light scattering member 4. The light-transmitting cover plate 2 has a light-transmitting property, so that a light beam can be irradiated from one side of the light-transmitting cover plate 2 to the other side. When the lighting device is applied to vehicles such as automobiles, the outer surface of the light-transmitting cover plate 2 is exposed outside the automobiles, so that light transmission can be realized, and other parts inside the lighting device can be protected.

Fig. 4 is a front view of a bracket 1 according to an embodiment of the present application, referring to fig. 4, the bracket 1 is a main framework of a lighting device, and is used for supporting a plurality of parts in the lighting device, so that the reliability of the overall structure of the lighting device can be ensured, and meanwhile, the bracket 1 can facilitate the overall installation and fixation of the lighting device on an automobile, so as to ensure the installation reliability of the lighting device on the automobile. Wherein, the shape of support 1 can be bowl shape, and printing opacity apron 2 is connected in support 1, makes between printing opacity apron 2 and the support 1 can form and hold chamber 12.

Fig. 5 is a front view of a light source assembly 3 according to an embodiment of the present application, and referring to fig. 5, the light source assembly 3 can generate a light beam, and the generated light beam can penetrate through a transparent cover plate 2, so that an automobile can provide light to the outside through a lighting device. In one embodiment, the light source assembly 3 includes a light source 31 and a circuit board 32, the light source 31 being electrically connected to the circuit board 32. The Light source 31 may be a Light-Emitting Diode (LED), and a plurality of LEDs may be included and may form an LED array. The circuit board 32 may be a printed circuit board 32 (Printed Circuit Board, PCB), in which a wiring layer is provided in the circuit board 32, and the wiring layer can be electrically connected with the light source 31 through a corresponding port to supply electric power to the light source 31. Meanwhile, the circuit board 32 may be provided with a plurality of functional modules, for example, a micro control unit (Micro Control Unit, MCU), a power module, etc., and part of the functional modules may be connected with the light source 31 through corresponding wiring layers in the circuit board 32 to control the light source 31, for example, the light and dark control of part of the LED diodes in the LED array may be implemented through corresponding functional modules, and the light and dark time may also be controlled.

Fig. 6 is a schematic diagram of the light source assembly 3 provided in the embodiment of the present application mounted on the bracket 1, and referring to fig. 6, the circuit board 32 may be mounted on the bracket 1, and the reliability of the mounting of the circuit board 32 may be ensured by the support of the bracket 1. In one embodiment, the circuit board 32 may be mounted on the side of the support 1 facing away from the transparent cover plate 2, so that the circuit board 32 may be prevented from occupying the space between the support 1 and the transparent cover plate 2 in the accommodating cavity 12, and the inner surface of the support 1 located in the accommodating cavity 12 may be used for light evening, and light may not be blocked by the circuit board 32. Wherein the holder 1 may be provided with an opening 11, and a light source 31 such as an LED diode may be aligned with the opening 11, so that light generated from the light source 31 can be irradiated into the accommodating chamber 12 through the opening 11. Illustratively, a light source 31, such as an LED diode, may be embedded in the opening 11. In another embodiment, the circuit board 32 and the light source 31 may be disposed on the side of the bracket 1 facing the accommodating cavity 12, which is beneficial to improving the integration level of the lighting device, and the circuit board 32 and the light source 31 may be protected by the bracket 1 and the light-transmitting cover plate 2.

Referring to fig. 3, the light scattering member 4 has light transmission and light scattering properties in different directions, and the light scattering member 4 is disposed in the accommodating cavity 12, that is, the light source assembly 3 and the light-transmitting cover plate 2 are respectively disposed at two opposite sides of the light scattering member 4, and the light beam generated by the light source assembly 3 can be scattered by the light scattering member 4 before being radiated to the outside through the light-transmitting cover plate 2. In one embodiment, the light scattering member 4 may be connected to the bracket 1, and the edge position of the light scattering member 4 may be fixed to the bracket 1 by an ultrasonic welding process, or may be fixedly mounted to the bracket 1 by using a screw, a rivet, a buckle, or the like.

Fig. 7 is a schematic view of the light scattering member 4 according to the embodiment of the present application mounted on the support 1, fig. 8 is an enlarged view of a portion B in fig. 7, referring to fig. 8, a plurality of first areas C1 and a plurality of second areas C2 are disposed on the light scattering member 4, the first areas C1 and the second areas C2 are areas of the light scattering member 4 having a certain area, at least a part of the first areas C1 and at least a part of the second areas C2 are alternately distributed, and single or multiple crystal particles 41 are disposed in the first areas C1 and the second areas C2. The crystal particles 41 are particle structures having a smaller overall volume and a closer size in each direction. Illustratively, the crystal particles 41 may be regular or irregular polyhedrons, such as tetrahedrons, hexahedrons, etc. The crystal particle 41 has a plurality of first reflecting surfaces 411, the first reflecting surfaces 411 have a function of reflecting light, and an included angle α is formed between two adjacent first reflecting surfaces 411. When the crystal particles 41 are regular polyhedrons, the crystal particles 41 may be regular polyhedrons, such as cubes, cuboids, or the like, and the first reflecting surface 411 is of a regular shape. When the crystal particle 41 is an irregular polyhedron, the shape of the first reflecting surface 411 is an irregular shape. In the present embodiment, the crystal particles 41 are exemplified as irregular polyhedrons, and the irregular-shaped crystal particles 41 have different reflection effects on light in different directions.

As described above, the first reflecting surfaces 411 on each crystal particle 41 may have a plurality of first reflecting surfaces 411, and a certain included angle α is formed between two adjacent first reflecting surfaces 411, so that each first reflecting surface 411 faces different directions, and when the light generated by the light source assembly 3 irradiates the first reflecting surfaces 411, the light may be reflected by the first reflecting surfaces 411 to the corresponding directions. Illustratively, in a selected direction, only a portion of the light may be reflected by the corresponding reflective surface in the selected direction, while the remainder of the light may be reflected by the other first reflective surface 411 in other corresponding directions. Wherein the size of the crystal particles 41 in the first region C1 is smaller than the size of the crystal particles 41 in the second region C2, the effect of the different size crystal particles 41 on light reflection is different, and illustratively, in a selected first direction X, the larger size crystal particles 41 and the smaller size crystal particles 41 each have one reflection surface facing the selected first direction X, the larger size crystal particles 41 reflect light beams having larger diameters, appear brighter, and the smaller size crystal particles 41 reflect light beams having smaller diameters, appear relatively darker, thereby obtaining a visual effect of different shades. Furthermore, for example, in another selected second direction Y, only a small angle may be formed between the second direction Y and the first direction X, when the lighting device is viewed in the second direction Y, it may be that only smaller sized crystal particles 41 have one reflecting surface facing the selected second direction Y, whereas larger sized crystal particles 41 have no corresponding reflecting surface facing the selected second direction Y, when only light reflected by the crystal particles 41 of the second region C2 is observed, whereby the bright-dark effect of the lighting device is changed in the second direction Y with respect to the viewing of the lighting device in the first direction X. Further, by alternately arranging at least part of the first areas C1 and at least part of the second areas C2, the effect of brightness and darkness can be made more remarkable when the illumination means is viewed in different directions.

Therefore, in the lighting device provided by the embodiment of the application, the first area C1 and the second area C2 are arranged at different positions on the light scattering member 4, and the crystal particles 41 with different sizes are arranged in the first area C1 and the second area C2, so that different reflection effects can be presented through the reflection effect of the crystal particles 41 on light rays in different areas, and the visual effect of different brightness when the lighting device is observed at different visual angles is realized.

In one embodiment, the crystal particles 41 are arranged on one side of the light scattering member 4 in the light exit direction Z of the lighting device. In a specific embodiment, the crystal particles 41 are disposed on the light scattering member 4 and face one side of the light-transmitting cover plate 2, the light generated by the light source assembly 3 can be incident into the light scattering member 4 from the light scattering member 4 and face one side of the light source assembly 3, and then can be emitted from the first reflecting surface 411 of the crystal particles 41 to the light-transmitting cover plate 2, and the directions of the first reflecting surfaces 411 of the crystal particles 41 are different, so that the light emitted from the light scattering member 4 can face different directions, and finally can be emitted to the outside of the lighting device through the light-transmitting cover plate 2, so that the brightness effect perceived by a person when observing the lighting device in different directions is different.

In one embodiment, fig. 9 is a cross-sectional view of a crystal grain 41 according to an embodiment of the present application, and fig. 10 is a cross-sectional view of a crystal grain 41 according to another embodiment of the present application, and referring to fig. 9 or 10, the crystal grain 41 has a first dimension H1 in a first direction X and a second dimension H2 in a second direction Y, the first direction X being perpendicular to the second direction Y, and the second dimension H2 being greater than or equal to the first dimension H1. The crystal particles 41 include first particles and second particles, and the first size H1 of the second particles is larger than the second size H2 of the first particles. Wherein the largest dimension on the first particles is smaller than the smallest dimension on the second particles, i.e. the overall size of the first particles is smaller than the overall size of the second particles, the first particles may be arranged in the first zone C1 and the second particles may be arranged in the second zone C2, so that the lighting device has different shading effects at different viewing angles. Furthermore, in other embodiments, only the first particles or the second particles may be disposed in the first region C1 and the second region C2, or a part of the first particles and the second particles may be disposed in the first region C1 and/or the second region C2 in a mixed manner, and by making the distribution sparseness of the crystal particles 41 in the first region C1 and the crystal particles 41 in the second region C2 different, different shading effects may also be obtained. Illustratively, by making the distribution of crystal particles 41 in the first region C1 relatively tighter, the distribution of crystal particles 41 in the second region C2 is made relatively more diffuse, whereby the light reflected by the first region C1 is visually perceived brighter and the light reflected by the second region C2 is visually perceived darker when the first and second regions C1 and C2 are viewed in a selected direction.

In one embodiment, referring to fig. 9, fig. 9 schematically illustrates the crystal particles 41 as first particles having a first dimension H1 of 1mm to 3mm and a second dimension H2 of 1mm to 4mm. By making the first size H1 and the second size H2 of the first particles within the above-mentioned size range, the difference between the first size H1 and the second size H2 can be small, the overall shape of the first particles can be in the form of particles, and when a plurality of such particles are reflected in different directions by the corresponding first reflecting surface 411, a person can receive light reflected by different crystal particles 41 when moving and observing the lighting device between different positions, so that the person can feel the change of light and shade, feel that the light emitted by the lighting device shines like a star, and be bright and attractive.

In one embodiment, referring to fig. 10, fig. 10 schematically illustrates the crystal particles 41 as second particles, the first size H1 of the second particles being 15mm to 20mm, and the second size H2 of the second particles being 30mm to 40mm. Through making first size H1 and the second size H2 of second granule be within above-mentioned size range, can make first size H1 and second size H2 phase difference less, the bulk shape of second granule can appear as the granule, and the bulk size of second granule is greater than the bulk size of first granule, makes the reflection effect of second granule be different from the reflection effect of first granule, is favorable to realizing obtaining different light and shade visual effects when observing lighting device in different directions.

In an embodiment, fig. 11 is a side view of a light scattering member 4 according to an embodiment of the present application, referring to fig. 11, crystal particles 41 are disposed on a surface of the light scattering member 4 facing away from a light source assembly 3, a plurality of optical structures 42 for homogenizing light are disposed on a surface of the light scattering member 4 facing the light source assembly 3, at least two second reflection surfaces 421 are disposed on the optical structures 42, and an included angle β is formed between two adjacent second reflection surfaces 421. At least part of the light emitted by the light source assembly 3 can be reflected to the corresponding direction by the second reflecting surface 421 of the optical structure 42 before entering the light scattering member 4, the reflected light can be reflected by the inner surface of the bracket 1 again, and the light can be uniformly diffused in the accommodating cavity 12 repeatedly, so that the light can be uniformly diffused in a large area range by the optical structure 42 only by adopting fewer light sources 31 such as LEDs, thereby being beneficial to reducing the number of the light sources 31, simplifying the structure of the lighting device and saving the cost. The light reflected by the optical structure 42 can finally enter the light scattering member 4, and is irradiated to the outside of the lighting device through the crystal particles 41 and the light-transmitting cover plate 2.

In one embodiment, the optical structure 42 may include a columnar pattern or a dermatoglyph. Where the optical structure 42 is a columnar pattern, the optical structure 42 has a certain length, for example, the length may be between 4mm and 8mm, and the corresponding width may be between 1mm and 2 mm. When the optical structure 42 is a dermatoglyph, the dermatoglyph is not a regular structure, and the surface of the light scattering member 4 facing the light source assembly 3 can be rough to form fine textures. The light homogenizing effect can be realized no matter whether the optical structure 42 is a columnar pattern or a leather pattern, or a combination of the columnar pattern and the leather pattern.

In one embodiment, the light scattering member 4 is of an integrally molded structure, and the light scattering member 4 may be integrally injection molded, for example. In the molding process, the light scattering piece 4 can be directly molded into corresponding crystal particles 41 and optical structures 42, so that the reliability of the whole structure of the light scattering piece 4 can be ensured, the production and the manufacturing are convenient, the process is simplified, and the cost is saved.

In one embodiment, the side of the support 1 facing the light scattering member 4 is white. Illustratively, the holder 1 may be made of a white polycarbonate material having microscopically countless particles capable of reflecting light. When the light emitted by the light source assembly 3 irradiates the optical structure 42, at least part of the light can be reflected to the support 1, the light reflected by the optical structure 42 can enter the support 1 and can be reflected by particles in the material of the support 1 towards different directions, so that the light homogenizing effect can be realized, and therefore, the light can be uniformly diffused in a large area by adopting fewer light sources 31 such as LEDs and the like, and the light can be uniformly diffused in a large area by matching the optical structure 42 with the support 1, so that the quantity of the light sources 31 is reduced, the structure of the lighting device is simplified, and the cost is saved.

In an embodiment, fig. 12 is a schematic diagram of an anti-light-transmission coating 21 provided by the embodiment of the application, fig. 13 is a schematic diagram of the anti-light-transmission coating 21 provided by the embodiment of the application, and referring to fig. 12 and 13, simultaneously, along a light emitting direction Z of a lighting device, the anti-light-transmission coating 21 is provided on a surface of the light-transmission cover 2, and a plurality of hollowed-out parts 211 for light beam transmission are provided on the anti-light-transmission coating 21. In one embodiment, the light-transmissive coating 21 is disposed on a side of the light-transmissive cover plate 2 remote from the light source module 3. Referring to fig. 12, the hollowed-out portion 211 may be an area without the light-transmitting cover plate 2 covered by the light-transmitting-preventing coating 21, and the hollowed-out portion 211 may be formed by a laser engraving process, for example. In a specific molding process, the light-proof coating 21 can be coated on the set area of the light-proof cover plate 2 through a spraying process and the like, then the light-proof coating 21 can be removed from the set position of the light-proof coating 21 through a laser etching process, so that the area from which the light-proof coating 21 is removed forms the hollowed-out part 211, and the hollowed-out part 211 can enable the light-proof cover plate 2 not to be covered by the light-proof coating 21, so that light can be transmitted from the hollowed-out part 211.

The hollowed-out portion 211 may be formed in a predetermined pattern, such as an array distribution or a discrete distribution of dots, a wavy line, a closed or semi-closed ring, a regular or irregular pattern, etc. Light generated by the light source component 3 can be incident to the light-transmitting cover plate 2 after passing through the light scattering piece 4, the light-transmitting cover plate 2 has light-transmitting characteristics, the light can be emitted to the outside through the light-transmitting cover plate 2, the light cannot be emitted after being blocked by the light-transmitting-preventing coating 21 in the area with the light-transmitting-preventing coating 21, and the light can be emitted to the outside through the hollowed-out part 211 in the area with the hollowed-out part 211. Since the hollow portion 211 has a predetermined pattern, the light emitted from the hollow portion 211 can visually represent a corresponding pattern, which is attractive and has a recognition degree. In addition, since the light emitted from the light source unit 3 is scattered in different directions by the crystal particles 41 on the light scattering member 4, when the lighting device is viewed from different angles, the light transmitted from the hollowed-out portion 211 has different brightness effects, so that the lighting device is more enjoyable.

In other embodiments, the light-proof coating 21 may be disposed on a side of the light-transmissive cover plate 2 facing the light source assembly 3, and the above effects caused by the light-proof coating 21 can be also generated, which will not be described in detail in this embodiment.

In one embodiment, the material of the light-proof coating 21 may be a black coating, and the light-proof coating 21 may be a coating made of a black polycarbonate material, for example, having a light-proof property. Under the condition that the light source component 3 does not emit light, the black light-proof coating 21 can enable the appearance surface of the lighting device to show a black paint effect, has impact on the vision and improves the identification degree.

In one embodiment, a space may be provided between the side of the light scattering member 4 facing away from the light source assembly 3 and the transparent cover plate 2, so that light reflected by the crystal particles 41 on a larger area of the light scattering member 4 can exit from the hollow portion 211 at the same point on the transparent cover plate 2, thereby enhancing the visual effect when the lighting device is observed from different angles.

The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (17)

1. A lighting device, comprising:

A bracket;

The light-transmitting cover plate is connected to the bracket, so that a containing cavity is formed between the light-transmitting cover plate and the bracket;

The light source assembly is arranged on the bracket and used for irradiating light beams into the accommodating cavity;

The light scattering piece is arranged in the accommodating cavity, a plurality of first areas and a plurality of second areas are arranged on the light scattering piece, at least part of the first areas and at least part of the second areas are alternately distributed, single or a plurality of crystal particles are arranged in the first areas and the second areas, the size of the crystal particles in the first areas is smaller than that of the crystal particles in the second areas, the crystal particles are provided with a plurality of first reflecting surfaces, and an included angle is formed between every two adjacent first reflecting surfaces.

2. A lighting device as recited in claim 1, wherein said crystal particles are disposed on one side of said light scattering member in a light exiting direction of said lighting device.

3. A lighting device as recited in claim 1, wherein said crystal particles have a first dimension in a first direction and a second dimension in a second direction, said first direction being perpendicular to said second direction, said second dimension being greater than or equal to said first dimension;

The crystal particles include first particles and second particles, the first size of the second particles being larger than the second size of the first particles.

4. A lighting device as recited in claim 3, wherein said first dimension of said first particles is between 1mm and 3mm and said second dimension of said first particles is between 1mm and 4mm.

5. A lighting device as recited in claim 3, wherein said first dimension of said second particles is between 15mm and 20mm, and said second dimension of said second particles is between 30mm and 40mm.

6. A lighting device as recited in any one of claims 1-5, wherein said crystal particles are polyhedral.

7. A lighting device as recited in any one of claims 1-5, wherein said crystal particles are disposed on a side of said light scattering element facing away from said light source assembly, a plurality of optical structures are disposed on a side of said light scattering element facing said light source assembly, said optical structures are provided with at least two second reflective surfaces, an included angle is provided between two adjacent second reflective surfaces, and said plurality of optical structures are used for homogenizing light.

8. A lighting device as recited in claim 7, wherein said optical structure comprises a columnar pattern or a skin pattern.

9. A lighting device as recited in any one of claims 1-5, wherein the light scattering element is integrally formed.

10. A lighting device as recited in any one of claims 1-5, wherein a surface of said light-transmissive cover plate is provided with a light-transmissive coating along a light-exiting direction of said lighting device, said light-transmissive coating being provided with a plurality of hollowed-out portions for light beam transmission.

11. A lighting device as recited in claim 10, wherein said hollowed-out portion is formed by a laser engraving process.

12. A lighting device as recited in any one of claims 1-5, wherein the light-blocking coating is a black coating.

13. A lighting device as recited in any one of claims 1-5, wherein a side of said frame facing said light scattering element is white.

14. A lighting device as recited in any one of claims 1-5, wherein said light scattering element is connected to said bracket, and wherein a side of said light scattering element facing away from said light source assembly is spaced from said light transmissive cover plate.

15. A lighting device as recited in any one of claims 1-5, wherein said light source assembly comprises a light source and a circuit board, said light source being electrically connected to said circuit board, said circuit board being connected to a side of said bracket that faces away from said light-transmissive cover plate.

16. A lighting device as recited in claim 15, wherein an opening is provided in said bracket, said light source being aligned with said opening.

17. A vehicle comprising a lighting device as claimed in any one of claims 1 to 16.