Light distribution structure, automobile lamp and automobile

Abstract

According to the light distribution structure, the multiple light distribution prisms are distributed on the light distribution curved surface of the base body, the light distribution pattern unit is correspondingly arranged at the end, away from the light distribution curved surface, of each light distribution prism, and each light distribution pattern unit comprises the multiple light distribution planes with different normal directions; due to the fact that the light distribution pattern units are arranged on the light distribution planes, light can be emitted from the light distribution planes of the light distribution pattern units at different angles in the lightening state, the stereoscopic and bright visual effect can be achieved, an observer can see more light when observing the car lamp with the light distribution structure from a large angle, high visual brightness can be obtained, and the car lamp is more attractive in appearance. Besides, in the non-lighting state, all the light distribution planes of all the light distribution pattern units can reflect and / or refract natural light into different angles, and therefore the three-dimensional bright visual effect is achieved in the non-lighting state.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobiles, in particular to a light distribution structure, a vehicle lamp and an automobile. BACKGROUND

[0002] In current vehicle lamp optical design, a fisheye or a relatively regular horizontal and vertical pattern is generally arranged on a light distribution surface to obtain a light distribution that meets the requirements and a relatively uniform light emitting surface. Such light distribution structure has a flat light emitting effect in the lighting state, and basically has no three-dimensional light emitting effect, which results in low visual brightness when observing the vehicle lamp from a large angle, and is not conducive to driving safety. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to make the vehicle lamp have a three-dimensional light emitting effect, so as to obtain a high visual brightness when observing the vehicle lamp from a large angle, thereby improving driving safety.

[0004] To achieve the above-mentioned purpose, the present application provides a light distribution structure, which comprises a base body and a light distribution prism, the base body comprises a light distribution surface, and the light distribution surface is covered with a plurality of light distribution prisms, each light distribution prism is provided with a light distribution pattern unit corresponding to the end face away from the light distribution surface, and each light distribution pattern unit comprises a plurality of light distribution planes with different normal directions.

[0005] In an embodiment of the light distribution structure, each light distribution prism extends along a first direction, and the first direction is the direction of light source light incident on the light distribution structure.

[0006] In an embodiment of the light distribution structure, an end point of each light distribution plane of the same light distribution pattern unit coincides to form a coincidence point, and the relationship between the coincidence point of each light distribution pattern unit and the orthogonal projection of the corresponding light distribution prism on the same plane perpendicular to the first direction is that the projection point of the coincidence point falls on the center point of the projection plane of the light distribution prism.

[0007] In an embodiment of the light distribution structure, a plane perpendicular to the first direction and passing through the projection point of the coincidence point of the light distribution pattern unit projected onto the light distribution surface along the first direction is a reference plane corresponding to the light distribution pattern unit, and the distance between each end point of each light distribution plane of each light distribution pattern unit and the corresponding reference plane is a random value less than or equal to 3mm.

[0008] In an embodiment of the light distribution structure, each of the light distribution prisms is a right quadrangular prism with a right quadrangular cross section, each of the light distribution pattern units comprises eight triangular light distribution planes arranged in sequence around the coincidence point, and the relationship between the other end points of the eight triangular light distribution planes of each of the light distribution pattern units and the orthographic projection of the corresponding right quadrangular prism on the same plane perpendicular to the first direction is that each end point of the projection plane of the right quadrangular prism coincides with the projection point of one end point of two adjacent triangular light distribution planes, and the midpoint of each side line of the projection plane of the right quadrangular prism coincides with the projection point of the other end point of two adjacent triangular light distribution planes.

[0009] In an embodiment of the light distribution structure, all the light distribution prisms are arranged in sequence along the direction parallel to the side line of the light distribution surface, and the side surfaces of adjacent light distribution prisms overlap with each other.

[0010] The application also provides a vehicle lamp comprising the light distribution structure according to any one of the above.

[0011] In an embodiment of the vehicle lamp, the thick-walled member and / or the inner lamp shade are the base body, and the light emitting surface of the thick-walled member and / or the light emitting surface of the inner lamp shade are the light distribution surface.

[0012] The application also provides a vehicle comprising the vehicle lamp according to any one of the above.

[0013] In an embodiment of the vehicle, each of the light distribution prisms extends along the first direction, and the first direction is the longitudinal direction of the vehicle.

[0014] The light distribution structure provided by the application has the following advantages. Since the light distribution surface of the base body is covered with a plurality of light distribution prisms, one light distribution pattern unit is arranged on the end surface of each light distribution prism away from the light distribution surface, and each light distribution pattern unit comprises a plurality of light distribution planes with different normal directions, the light rays of the light source can be emitted from each light distribution plane of each light distribution pattern unit at different angles in the lighted state, thus a three-dimensional dazzling visual effect can be presented, so that when the vehicle lamp with the above light distribution structure is observed from a large angle, the observer can see more light rays, thereby obtaining a higher visual brightness. In addition, in the unlighted state, the natural light rays can be reflected and / or refracted at different angles by each light distribution plane of each light distribution pattern unit, so that a three-dimensional dazzling visual effect can also be presented in the unlighted state. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 4 is a perspective view of part of an embodiment of the vehicle lamp provided by the application;

[0016] Figure 2 is a partial enlarged view of Figure 1 ;

[0017] Figure 3 is a partial enlarged view of Figure 2 a single light distribution prism and a single light distribution pattern unit arranged on the end face thereof away from the light distribution surface;

[0018] Figure 4 is a schematic view of drawing the equidistribution curve on the drawn light distribution surface;

[0019] Figure 5 is a schematic view of projecting the light distribution surface on a plane perpendicular to the first direction to obtain a plurality of parallel projection lines and drawing equidistribution straight lines perpendicular to the parallel projection lines on the plane;

[0020] Figure 6 is a schematic view of projecting the center point of the rectangle formed by the intersection of adjacent equidistribution straight lines and adjacent parallel projection lines on the light distribution surface to obtain the projection point P;

[0021] Figure 7 is a schematic view of projecting the rectangle formed by the intersection of adjacent equidistribution straight lines and adjacent parallel projection lines on a reference plane passing through the projection point P and perpendicular to the first direction;

[0022] Figure 8 is a schematic view of translating the four end points, the center point and the midpoints of the four edges of the rectangle projected on the reference plane in the first direction by different distances relative to the reference plane;

[0023] Figure 9 is a schematic view of connecting the translated points and filling to form eight triangular light distribution planes.

[0024] The reference signs are explained as follows:

[0025] 1 base body, 1a light distribution surface, 2 inner lampshade, 2a clamping part, 3 light distribution pattern unit, 3a light distribution plane, 4 light distribution prism. DETAILED DESCRIPTION

[0026] In order for those skilled in the art to better understand the technical solutions of the present application, the technical solutions of the present application will be further described in detail below in combination with the drawings and specific embodiments.

[0027] As shown in Figure 1 , the vehicle lamp provided by the present application comprises a light distribution structure, and the light distribution structure comprises a base body 1 and a light distribution prism 4. The base body 1 is provided with a light distribution surface 1a, and the light distribution surface 1a is covered with a plurality of light distribution prisms 4. Each light distribution prism 4 is provided with a corresponding light distribution pattern unit 3 on the end face thereof away from the light distribution surface 1a, and each light distribution pattern unit 3 comprises a plurality of light distribution planes 3a with different normal directions.

[0028] Since the light distribution surface of the base 1 is a curved surface, and the light distribution curved surface 1a is covered with a plurality of light distribution prisms 4, each light distribution prism 4 is provided with a light distribution pattern unit 3 on the end face away from the light distribution curved surface 1a, and each light distribution pattern unit 3 comprises a plurality of light distribution planes 3a with different normal directions, the light rays of the light source can be emitted from each light distribution plane 3a of each light distribution pattern unit 3 at different angles in the lighted state, thus a three-dimensional dazzling visual effect can be presented, so that when the vehicle lamp with the above light distribution structure is observed from a large angle, the observer can see more light rays, thereby obtaining a higher visual brightness. In addition, in the unlighted state, the light rays of each light distribution plane 3a of each light distribution pattern unit 3 can be reflected and / or refracted at different angles, so that in the unlighted state, the light distribution pattern unit 3 also has a three-dimensional dazzling visual effect.

[0029] Specifically, in the illustrated embodiment, all the light distribution prisms 4 are arranged in sequence along the direction parallel to the side line of the light distribution curved surface 1a, and the side surfaces of adjacent light distribution prisms 4 overlap each other. In the figure, the plurality of light distribution prisms 4 are arranged in sequence into one row along the long side line direction of the light distribution curved surface 1a, and there are five rows, and the five rows are arranged in sequence along the short side line direction of the light distribution curved surface 1a. In this way, the model design of the light distribution pattern unit 3 is facilitated.

[0030] Specifically, in the illustrated embodiment, each light distribution prism 4 extends along a first direction. The first direction is the direction in which the light rays of the light source are incident on the light distribution pattern unit 3. When installed on a vehicle, the first direction is the longitudinal direction of the vehicle. In this way, when the vehicle lamp is observed from the front or the back, each light distribution prism 4 is seen to be in a plane, so that the observer feels that the vehicle lamp has good overallity.

[0031] Specifically, in the illustrated embodiment, each light distribution plane 3a of the same light distribution pattern unit 3 has an end point coinciding to form a coincident point O, and the relationship between the coincident point O of each light distribution pattern unit 3 and the orthographic projection of the corresponding light distribution prism 4 on the same plane perpendicular to the first direction is that the projection point of the coincident point O falls on the center point of the projection face of the light distribution prism 4. In this way, the model design of the light distribution pattern unit 3 is facilitated.

[0032] Specifically, in the illustrated embodiment, each light distribution pattern unit 3 has a respective reference plane (indicated by Y in the figure) corresponding thereto, and the reference plane is perpendicular to the first direction, and the reference plane passes through the projection point of the coincident point O of the light distribution pattern unit 3 on the light distribution curved surface 1a along the first direction. Figure 7 Figure 7 ​That is, the projection point of the coincidence point O of each light distribution pattern unit 3 on the light distribution surface la in the first direction is located on the reference plane corresponding to the light distribution pattern unit 3. The distance between each end point of each light distribution plane 3a of each light distribution pattern unit 3 and the respective corresponding reference plane is a random value within 3mm (including 0mm and 3mm). In this way, the model design of the light distribution pattern unit 3 is facilitated, and the bending trend of the face connected by the light distribution pattern units 3 is substantially the same as the bending trend of the light distribution surface la.

[0033] Specifically, in the illustrated embodiment, the light distribution prism 4 is a right rectangular prism with a straight rectangular cross section, and each light distribution pattern unit 3 has eight triangular light distribution planes 3a arranged in sequence around the coincidence point O. One side line of adjacent triangular light distribution planes 3a of each light distribution pattern unit 3 coincides. The relationship between the other end points of the eight triangular light distribution planes 3a of each light distribution pattern unit 3 and the orthographic projection of the corresponding right rectangular prism on the same plane perpendicular to the first direction is that each end point of the projection plane of the right rectangular prism coincides with the projection point of one end point of the two adjacent triangular light distribution planes 3a, and the midpoint of each side line of the projection plane of the right rectangular prism coincides with the projection point of the other end point of the two adjacent triangular light distribution planes 3a. In this way, the model design of the light distribution pattern unit 3 is facilitated. It should be noted that the number of light distribution planes 3a of each light distribution pattern unit 3 is not limited to eight, and can be less than eight or more than eight.

[0034] Specifically, the model design process of the light distribution pattern unit 3 of the illustrated embodiment can be as follows:

[0035] As shown in Figure 4 , first draw the light distribution surface la in the design software, then draw a plurality of equally divided curves parallel to the long side lines of the light distribution surface la on the light distribution surface la at equal intervals (indicated by S in the figure). As shown in Figure 5 , then project the light distribution surface la with the equally divided curves drawn thereon onto a plane perpendicular to the first direction (indicated by X in the figure) to obtain a plurality of parallel projection lines (indicated by L in the figure), then draw a plurality of equally divided straight lines perpendicular to the parallel projection lines at equal intervals (indicated by N in the figure), and the intersection of adjacent equally divided straight lines and adjacent parallel projection lines forms a rectangle. As shown in Figure 6 , project the center point of each rectangle onto the light distribution surface la in the first direction to obtain a projection point (indicated by P in the figure). As shown in Figure 7 , draw a reference plane perpendicular to the first direction through the projection point (indicated by Y in the figure), and project each rectangle on the X plane onto the Y reference plane in the first direction. As shown in Figure 8As shown, each rectangular center point on the reference plane, four end points and four edge lines of the midpoint are translated along the first direction relative to the reference plane within a range of 3mm random number. As shown in FIG. 3B, the light distribution pattern unit 3 is obtained by connecting the translated points. Figure 9 As shown, the eight triangular light distribution planes 3a of each light distribution pattern unit 3 are obtained by connecting the translated points.

[0036] The vehicle lamp provided by the present application comprises the light distribution structure.

[0037] Specifically, in some embodiments, the vehicle lamp comprises a thick-walled member and / or an inner lampshade 2, the thick-walled member and the inner lampshade 2 are installed inside the outer lampshade, and the thick-walled member and the inner lampshade 2 both have light guiding effect. The base body 1 of the light distribution structure is the thick-walled member and / or the inner lampshade 2, and the light distribution curved surface 1a of the base body 1 is the light emitting surface of the thick-walled member and / or the light emitting surface of the inner lampshade 2, that is, the light emitting surface of the thick-walled member and / or the light emitting surface of the inner lampshade 2 is covered with the light distribution prisms 4. In the illustrated embodiment, an inner lampshade 2 is shown, and the light emitting surface of the inner lampshade 2 is covered with the light distribution prisms 4. The upper and lower sides of the light emitting surface of the inner lampshade 2 are provided with clamping portions 2a for clamping and fixing the inner lampshade 2.

[0038] The vehicle provided by the present application comprises the vehicle lamp, and in some embodiments, all the light distribution prisms 4 of the light distribution structure of the vehicle lamp extend along the longitudinal direction of the vehicle.

[0039] The above describes the principles and implementation modes of the present application by using specific examples, and the above description of the embodiments is only used to help understand the method of the present application and its core idea. It should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A light distribution structure, characterized in that, The light distribution structure includes a substrate (1) and a light distribution prism (4). The substrate (1) includes a light distribution surface (1a). The light distribution surface (1a) is covered with multiple light distribution prisms (4). Each light distribution prism (4) has a corresponding light distribution pattern unit (3) on its end face away from the light distribution surface (1a). Each light distribution pattern unit (3) includes multiple light distribution planes (3a) with different normal directions.

2. The light distribution structure according to claim 1, characterized in that, Each of the light distribution prisms (4) extends along a first direction, which is the direction in which light from the light source enters the light distribution structure.

3. The light distribution structure according to claim 2, characterized in that, An endpoint of each of the light distribution planes (3a) of the same light distribution pattern unit (3) coincides to form a coincidence point. The relationship between the coincidence point of each light distribution pattern unit (3) and the corresponding light distribution prism (4) on the same plane perpendicular to the first direction is as follows: the projection point of the coincidence point falls on the center point of the projection surface of the light distribution prism (4).

4. The light distribution structure according to claim 3, characterized in that, The plane of the projection point of the coincidence point of the light distribution pattern unit (3) perpendicular to the first direction and projected onto the light distribution surface (1a) along the first direction is the reference plane corresponding to the light distribution pattern unit (3). The distance between each endpoint of each light distribution plane (3a) of each light distribution pattern unit (3) and its corresponding reference plane is a random value less than or equal to 3 mm.

5. The light distribution structure according to claim 4, characterized in that, Each of the light-distributing prisms (4) is a right-angled quadrangular prism with a cross-section of a right-angled quadrilateral. Each of the light-distributing pattern units (3) includes eight triangular light-distributing planes (3a) arranged sequentially around the coincident point. The relationship between the other endpoints of the eight triangular light-distributing planes (3a) of each of the light-distributing pattern units (3) and their respective right-angled quadrangular prisms on the same plane perpendicular to the first direction is as follows: each endpoint of the projection surface of the right-angled quadrangular prism coincides with the projection point of one endpoint of the two connected triangular light-distributing planes (3a), and the midpoint of each side of the projection surface of the right-angled quadrangular prism coincides with the projection point of the other endpoint of the two connected triangular light-distributing planes (3a).

6. The light distribution structure according to any one of claims 1-5, characterized in that, All the light distribution prisms (4) are arranged sequentially along the direction parallel to the edge line of the light distribution surface (1a), and the side surfaces of adjacent light distribution prisms (4) overlap each other.

7. A vehicle headlight, characterized in that, The vehicle headlight includes the light distribution structure as described in any one of claims 1-6.

8. The vehicle light according to claim 7, characterized in that, The vehicle headlight includes a thick-walled component and / or an inner lamp cover (2), the thick-walled component and / or the inner lamp cover (2) being the substrate (1), and the light-emitting surface of the thick-walled component and / or the light-emitting surface of the inner lamp cover (2) being the light distribution surface (1a).

9. A car, characterized in that, The vehicle includes the headlights as described in any one of claims 7-8.

10. The automobile according to claim 9, characterized in that, Each of the light-distributing prisms (4) extends along a first direction, which is the longitudinal direction of the vehicle.

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