CN211875909U - Area light source system and vehicle lamp thereof - Google Patents

Abstract

The present disclosure relates to a surface light source system and a vehicle lamp thereof, the surface light source system comprises a housing, a light source and a light guide body housing provided with a first opening; the light guide body is arranged in the shell, one side of the light guide body is arranged opposite to the light source, and the light guide body on the other side is arranged opposite to the first opening; the opposite surface of the shell, which is opposite to the light guide body, is a light reflecting surface; the surface that casing and light conductor contacted establishes to white reflecting plate, or the light incident surface of light conductor is equipped with a plurality of arc recesses that correspond with a plurality of light sources, realizes the total reflection of focusing, and the light that sends is more even, reaches the effect of area source, reduces the loss of light efficiency.

Description

Area light source system and its lamp

technical field

The invention relates to the field of vehicle lamps, in particular to a surface light source system and a vehicle lamp thereof.

Background technique

With the development of automotive lighting technology, more and more LED light-emitting units are used in automobiles. Due to the problem of uneven lighting caused by the lighting system, point light sources and line light sources are increasingly unable to meet the requirements of customers, and surface light sources have emerged. OLED (Organic Light-Emitting Diode, organic light-emitting semiconductor) can be more changeable in shape. Therefore, it is precisely based on the optical structure of the lamp and the needs of the uniformity of light emission, it is urgent to design an automotive surface light source system.

Utility model content

The purpose of the embodiments of the present disclosure is to provide a surface light source system, which avoids the defect of uneven light caused by point light sources and line light sources, and provides a surface light source with uniform distribution for vehicle lights.

In order to achieve the above purpose, the present disclosure provides a surface light source system, including:

Housing, light source and light guide body; wherein,

the casing is provided with a first opening;

The light guide body is arranged on the housing, one side of the light guide body is arranged opposite to the light source, and the light guide body on the other side is arranged opposite to the first opening; the opposite surface of the housing opposite to the light guide body is a reflective surface .

Optionally, the opposite surface of the housing and the light guide body disposed opposite to each other is a white reflective surface.

Optionally, a lampshade is also included, the lampshade is arranged opposite to the first opening and the lampshade is arranged at the first opening.

Optionally, the light guide body is provided with a plurality of arc-shaped grooves on the side opposite to the light source, and the light emitted by the light source enters the light guide body through the corresponding arc-shaped grooves, and the light source is connected to the light source. The arc grooves are in one-to-one correspondence.

Optionally, the surface of the light guide body opposite to the first opening of the housing is set as a convex surface along the light exit direction.

Optionally, the thickness of the light guide body is 3 mm.

Optionally, it further includes a substrate, the light source is disposed on the substrate, the surface of the substrate has a convex structure or a concave structure, and the plurality of light sources are disposed in the convex structure or the concave structure.

Optionally, the light guide body includes one or more of silica gel, PMMA, polycarbonate, PMMI, and glass materials.

The present disclosure also provides a vehicle lamp, including the surface light source system of any one of the above solutions.

The surface light source system and the vehicle lamp thereof disclosed in the present disclosure, when in use, the light emitted from a plurality of LED light sources is first reflected by the light guide body to form a surface light source, and emits uniform light, especially the total reflection design of the light guide body, reducing the The loss of small light effect solves the problem of uneven lighting caused by existing point light sources and line light sources.

Description of drawings

FIG. 1 is an example diagram of an embodiment of the present disclosure;

Figure 2 is an isometric view of the embodiment of Figure 1;

3 is an example diagram of an embodiment of the present disclosure;

Figure 4 is an isometric view of the embodiment of Figure 3;

FIG. 5 is an example diagram of an embodiment of the present disclosure;

6 is an example diagram of an embodiment of the present disclosure;

7 is an example diagram of an embodiment of the present disclosure.

3. Light source; 4. Base plate; 5. Lampshade; 7. First opening; 8. Light exit surface; 9. Arc-shaped groove.

Detailed ways

The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

FIG. 1 is an exemplary diagram of an embodiment of the present disclosure. As shown in FIG. 1 , a surface light source system includes a housing 1 , a substrate 4 , a light source 3 and a light guide body 2 . The substrate 4 is arranged in the housing 1, and one or more light sources 3 are arranged on the substrate 4, and the light sources 3 are LEDs. The light guide body 2 is arranged on the housing 1, one side of the light guide body 2 is arranged opposite to the light source 3, and the light guide body 2 on the other side is arranged opposite to the first opening 7; the housing 1 is opposite to the light guide body 2 The opposite surface is set as the reflective surface. In this embodiment, the light guide body 2 has a rectangular plate-like structure. In practical applications, the light guide body can be designed in other shapes such as wedge-shaped, cone-shaped, etc. as required.

FIG. 2 is an isometric view of the embodiment of FIG. 1. As shown in FIG. 2, the light guide body 2 is mounted on the housing 1, and light enters the light guide body from the light emitting surface of the LED light source 3 through the light guide body 2. 2. The light in the light guide body 2 may be emitted from the side surface of the light guide body 2, and in this embodiment, the surfaces in the housing 1 that are in contact with the light guide body 2 are all set as white reflective plates, to the greatest extent possible. To achieve total reflection, avoid the loss of light efficiency. The surface of the light guide body 2 corresponding to the first opening of the housing 1, namely the light exit surface 8, is arranged in a convex shape protruding outward along the direction of light exit, and the convex shape refers to one or more The direction is curved outwards and/or extends outwards in one or more directions, so that when the light exits the light guide body 2, the divergence of the light can be further reduced.

FIG. 3 is an exemplary diagram of an embodiment of the present disclosure, and FIG. 4 is an isometric view of the embodiment in FIG. 3 . As shown in FIGS. 3 and 4 , the surface light source system includes a housing 1 . The substrate 4, one or more light sources 3 arranged on the substrate 4, the light source 3 is LED, the light guide body 2 and the lampshade 5, the lampshade 5 is arranged opposite the first opening 7 and the lampshade 5 is arranged at the first opening 7. The lampshade 5 can be waterproof and dustproof, and the surface of the lampshade 5 can be provided with horizontal and vertical stripes or prismatic stripes, so that part of the light emitted in parallel can be scattered around the roadside, so that the range of the driver's field of vision can be obtained equally. brightness.

FIG. 5 is an example diagram of an embodiment of the present disclosure. As shown in FIG. 5 , the light incident surface 7 of the light guide body 2 is provided with a plurality of arc-shaped grooves 9 , and the plurality of arc-shaped grooves 9 and the plurality of light sources 3 are respectively correspond. Since the light-emitting source of the light source is originally a spherical surface, the arc-shaped groove 9 can at least partially cover the light-emitting surface of the light source, ensuring that more light generated by the light source 3 enters the light guide body 2 and the angle of the light entering the light guide body 2 It has been changed to a certain extent. By setting the parameters of the arc-shaped groove 9, the light can be kept in the light guide body 2 as long as possible, and the light will not be emitted near the incident surface 7 to cause the loss of light efficiency. The arc-shaped groove 9 is preferably a circular groove, and the circular groove can completely cover the light-emitting surface of the light source 3 , so that almost all the light emitted by the light source can be irradiated and enter the light guide body 2 . In addition, the arc-shaped groove 9 is also beneficial to the mechanical protection of the light source 3 by the light guide body 2 .

FIG. 6 is an example diagram of an embodiment of the present disclosure. As shown in FIG. 6 , the light exit surface 8 of the light guide body 2 is a surface that protrudes outward along the light exit direction, which can reduce the amount of light exiting from the light guide body 2 . Divergence, the uniform emission of light from the light guide body 2 can be achieved by setting the degree of curvature of the light exit surface of the light guide body 2 . The protrusions are not limited to a specific curved surface shape, and curved surface shapes such as spherical, elliptical, and conical shapes can all be set with desired effects.

7 is an example diagram of an embodiment of the present disclosure, the surface of the substrate 4 has a plurality of convex structures or concave structures, and the light source 3 is arranged in the convex structures or the concave structures to achieve better light distribution characteristics and light utilization rate .

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the technical principle of the present invention, several improvements and substitutions can be made. These improvements and substitutions It should also be regarded as the protection scope of the present invention.

Claims (9)

1. A surface light source system, characterized in that, comprising: Housing, light source and light guide body; wherein, the casing is provided with a first opening; The light guide body is arranged on the housing, one side of the light guide body is arranged opposite to the light source, and the light guide body on the other side is arranged opposite to the first opening; the opposite surface of the housing opposite to the light guide body is a reflective surface . 2 . The surface light source system according to claim 1 , wherein the opposite surface of the housing and the light guide body disposed opposite to each other is a white reflective surface. 3 . 3 . The surface light source system according to claim 1 , further comprising a lampshade, the lampshade is arranged opposite to the first opening and the lampshade is arranged at the first opening. 4 . 4 . The surface light source system according to claim 1 , wherein the light guide body is provided with a plurality of arc-shaped grooves on the side opposite to the light source, the light sources correspond to the arc-shaped grooves, and the light source emits The light of the light source enters the light guide body through the corresponding arc-shaped groove, and the light source and the arc-shaped groove are in one-to-one correspondence. 5 . The surface light source system according to claim 1 , wherein the surface of the light guide body opposite to the first opening of the housing is a convex surface along the light exit direction. 6 . 6 . The surface light source system according to claim 1 , wherein the thickness of the light guide body is 3 mm. 7 . 7 . The surface light source system according to claim 1 , further comprising a substrate, the light source is disposed on the substrate, the surface of the substrate has a plurality of convex structures or concave structures, and the light source is disposed on the substrate. 8 . in a plurality of convex structures or concave structures. 8 . The surface light source system according to claim 1 , wherein the light guide body comprises one or more of silica gel, PMMA, polycarbonate, PMMI, and glass materials. 9 . 9. A vehicle lamp, characterized by comprising the surface light source system of claims 1 to 8.

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