CN213777581U

CN213777581U - Light guide plate, car light and vehicle

Info

Publication number: CN213777581U
Application number: CN202120010646.3U
Authority: CN
Inventors: 王�华; 徐国民; 胡克磊
Original assignee: HASCO Vision Technology Co Ltd
Current assignee: HASCO Vision Technology Co Ltd
Priority date: 2021-01-04
Filing date: 2021-01-04
Publication date: 2021-07-23
Anticipated expiration: 2031-01-04

Abstract

The utility model relates to an automobile lamp discloses a light guide plate, including going into light portion (11) and light-emitting portion (12), on light guide plate (1) with be formed with a plurality of to on the light guide plate back that light-emitting portion (12) are relative light guide plate (1) inside recessed polyhedral sunk structure (13), polyhedral sunk structure (13) are formed with the plane of reflection towards one side of light incident direction, the plane of reflection slope set up and can with incident light reflection extremely light-emitting portion (12). Additionally, the utility model also discloses a car light that contains this light guide plate and the vehicle that contains this car light. The utility model discloses a light guide plate simple structure, the light-emitting is effectual.

Description

Light guide plate, car light and vehicle

Technical Field

The utility model relates to a car light specifically relates to a light guide plate. Furthermore, the utility model discloses still relate to one kind and include car light and vehicle of light guide plate.

Background

At present, in the design of car lights, more and more car lights choose LED as the light source for use, and the LED car light has the advantage that the molding design is nimble, and space utilization is higher.

At present, the design of an LED car light generally uses the refraction and total reflection principles of light, and the following three design schemes are common in the field of car light design: firstly, the LED light source is directly irradiated, an inner light distribution lens is arranged, the LED light directly irradiates on the light distribution lens, and the light forms a diffusion effect through the array patterns of the light distribution lens. In order to obtain a more uniform luminous effect, the pattern surface needs to be accurately calculated. The method has high requirements on the design of the optical surface, and because the LED light source is not an ideal point light source, the ideal uniform effect is difficult to realize. Secondly, a light-gathering cup structure can be adopted in the design of the LED car lamp, the light-gathering cup structure is generally a rotational symmetric body, and when some light-emitting surfaces or light distribution requirements are square, a rotating body needs to be cut, so that the utilization efficiency of light is reduced. Meanwhile, the structure design method of the light gathering cup is too exquisite, and the requirements on processing and installation are high. Thirdly, by arranging the spherical arrays with different sizes on the light guide plate, light rays are irradiated to the spherical surface to be refracted or totally reflected when being transmitted inside the light guide plate, and when the light rays are emitted from the light emitting surface of the light guide plate, uniform large-area light emitting is realized. However, the light reflection structure of the light guide plate adopts a spherical surface as an optical processing surface, and light is emitted to the periphery, which is not beneficial to control and has low optical efficiency.

For the reasons, the prior art is difficult to effectively ensure the uniform light emitting effect, and the manufacturing cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the problem that the first aspect will be solved provides a light guide plate, this light guide plate simple structure, and the light-emitting is even, and the light-emitting is effectual.

Furthermore, the utility model discloses the problem that the second aspect will be solved provides a car light, this car light simple structure, and the light-emitting is effectual.

Further, the present invention provides a vehicle, which has a good light emitting effect.

In order to solve the technical problem, the utility model provides a light guide plate, including going into light portion and light portion, on the light guide plate with be formed with a plurality of on the light guide plate back that light portion is relative to the inside recessed multiaspect sunk structure of light guide plate, multiaspect sunk structure is formed with the plane of reflection towards one side of light incident direction, the plane of reflection slope set up and can with incident light reflection extremely light portion.

As a preferred embodiment of the present invention, a plurality of faces of the multi-face concave structure are all disposed to be inclined toward the concave space of the multi-face concave structure.

As another preferred embodiment of the present invention, the multi-surface concave structure is a four-surface concave structure or a six-surface concave structure.

Preferably, the array of multi-sided recessed structures is distributed on the back of the light guide plate.

More preferably, the multi-faced concave structure is formed with a first quadrilateral face and a second quadrilateral face, the first quadrilateral face and the second quadrilateral face have a common side, the common side is formed as a bottom of the multi-faced concave structure, and the first quadrilateral face is provided as the reflecting face.

Further, the first and second quadrilateral faces are planes inclined inward from the opening of the multi-face concave structure toward the common side of the bottom, and triangular connecting faces are provided between opposite sides of the first and second quadrilateral faces.

In another preferred embodiment of the present invention, the side of the first quadrangular surface, the second quadrangular surface and the triangular connecting surface which is away from the common side is a quadrangular opening, and the side length of the quadrangle is 0.01 to 1 mm.

As a specific structural form of the present invention, the quadrangle is a rectangle.

As another specific structural form of the present invention, the first quadrangular face and the second quadrangular face have two sides between the opposite sides thereof, the triangle is connected to the face, the first quadrangular face the second quadrangular face and four the triangle is connected to the face away from the face the edge on the shared side becomes the hexagon the opening portion.

Specifically, the four triangular connecting surfaces are symmetrically distributed on the side edges of the first quadrilateral surface and the second quadrilateral surface.

As another specific structure form of the present invention, the distance from the midpoint of the common edge to the opening of the multi-surface concave structure is 0 to 5 mm.

More specifically, the light incident portion includes a light guide or a light collecting cup structure.

Furthermore, the utility model discloses the second aspect still provides a car light, including the light source and according to any one of the technical scheme of the first aspect the light guide plate, the light source with it corresponds the setting to go into light portion.

Further, the third aspect of the present invention provides a vehicle, including the lamp according to the second aspect of the present invention.

Through the technical scheme, the utility model discloses a light guide plate includes light incident portion and light emergent portion, on the light guide plate with be formed with on the light guide plate back that light emergent portion is relative a plurality of to the inside recessed multiaspect sunk structure of light guide plate, multiaspect sunk structure is formed with the plane of reflection towards one side of light incident direction, the plane of reflection slope set up and can be with incident light reflection extremely light emergent portion. The utility model discloses a light guide plate sets up multiaspect sunk structure on the light guide plate, through the inclination of control multiaspect sunk structure's plane of reflection to reach the light-emitting direction of control reflection light, simple structure, the light-emitting is effectual.

Further advantages of the invention, as well as the technical effects of preferred embodiments, will be further explained in the following detailed description.

Drawings

Fig. 1 is a schematic structural diagram of a light guide plate according to an embodiment of the present invention;

FIG. 2 is a schematic view of an embodiment of the multi-faceted concave structure of the present invention;

FIG. 3 is a schematic view of the structure of the opening portion of the multi-faceted concave structure of FIG. 2;

FIG. 4 is a second schematic structural view of an embodiment of the multi-faceted concave structure of the present invention;

FIG. 5 is a third schematic view of an embodiment of the multi-faced concave structure of the present invention;

FIG. 6 is a schematic view of another embodiment of the multi-faceted concave structure of the present invention;

FIG. 7 is a second schematic structural view of another embodiment of the multi-faceted concave structure of the present invention;

fig. 8 is a light path diagram of a light guide plate according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of another embodiment of the light guide plate according to the present invention.

Description of the reference numerals

1 light guide plate 11 incident part

12 light-emitting part 13 multi-surface concave structure

131 a first quadrilateral surface 132 a second quadrilateral surface

133 common side 134 triangular connecting surface

Detailed Description

The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, and it should be understood that the embodiments described herein are merely for purposes of illustration and explanation, and the scope of the present invention is not limited to the following embodiments.

In the description of the present invention, it should be further noted that, unless otherwise explicitly stated or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, either internally or in any combination thereof. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1, the utility model provides a light guide plate, including light incident portion 11 and light emergent portion 12, light guide plate 1 with be formed with a plurality of on the light guide plate back that light emergent portion 12 is relative to 1 inside recessed multiaspect sunk structure 13 of light guide plate, multiaspect sunk structure 13 is formed with the plane of reflection towards one side of light incident direction, the plane of reflection slope set up and can with incident light reflection extremely light emergent portion 12.

The utility model discloses a transparent material shaping such as PC can be adopted to light guide plate 1, and light gets into from light inlet portion 11, jets out by light outlet portion 12 behind the multiaspect sunk structure 13 that sets up at the back of light guide plate 1. The multi-surface concave structure 13 is concave towards the inside of the light guide plate 1 from the back surface of the light guide plate 1, a reflecting surface is formed on one side of the multi-surface concave structure 13 facing the light incidence direction, the reflecting surface can totally reflect the light emitted onto the reflecting surface and then emit the light, as shown in fig. 8, the totally reflected light is uniform in light emitting, and the light emitting effect is good. Meanwhile, the light emitting direction of the light can be changed by changing the inclination angle of the reflecting surface, the uniformity of the light is not changed while the light emitting direction of the light is changed, and the light emitting effect is good.

As a preferred embodiment of the present invention, a plurality of faces of the multi-face concave structure 13 are all set to incline in the concave space of the multi-face concave structure 13, which is beneficial to demolding in the production and processing process.

It should be noted that "inside" refers to a direction of the multi-surface concave structure 13 toward the concave space of the multi-surface concave structure 13, and vice versa. The inclination toward the inside of the concave space of the polyhedral concave structure 13 means that the inclination is toward the inside of the concave space from the outside of the polyhedral concave structure 13.

Preferably, the multi-surface concave structures 13 are distributed on the back surface of the light guide plate in an array.

In order to guarantee the homogeneity of light-emitting effect, the utility model discloses a multiaspect sunk structure 13 even array distributes on the back of light guide plate 1, and light can form comparatively even light-emitting effect after multiaspect sunk structure 13 reflects. However, if in order to obtain other light-emitting effects, the utility model discloses a multiaspect sunk structure 13 also can form the distribution form of other structures according to actual light-emitting demand, for example can adopt circular array distribution form, or inhomogeneous structural distribution, can form different light-emitting effects, all belong to the utility model discloses a protection scope.

Preferably, the multi-surface concave structure 13 is a four-surface concave structure or a six-surface concave structure.

The multi-sided recess structure 13 includes a plurality of sides, and preferably, the multi-sided recess structure 13 shown in fig. 2 to 5 is a four-sided recess structure, and the multi-sided recess structure 13 shown in fig. 6 and 7 is a six-sided recess structure. The utility model discloses a multiaspect sunk structure 13 can also be other multiaspect sunk structure forms, for example octahedral sunk structure, perhaps ten faces sunk structure, can also be other sunk structure forms, all belongs to the utility model discloses a protection scope.

More preferably, the multi-surface concave structure 13 is formed with a first four-side surface 131 and a second four-side surface 132, the first four-side surface 131 and the second four-side surface 132 have a common edge 133, the common edge 133 is formed as a bottom of the multi-surface concave structure 13, and the first four-side surface 131 is configured as the reflecting surface.

As can be seen from fig. 2 to 7, no matter what kind of structure's polyhedral concave structure form is adopted, the utility model discloses a be formed with first four-sided surface 131 and second four-sided surface 132 on the polyhedral concave structure 13, first four-sided surface 131 and second four-sided surface 132 have a common limit 133, and from this can be seen, first four-sided surface 131 and second four-sided surface 132 form the V-type, and common limit 133 forms the bottom of polyhedral concave structure 13, and from this can be seen, first four-sided surface 131 and second four-sided surface 132 draw close to the bottom by the opening gradually.

More preferably, the first and second four-

side surfaces

131 and 132 are planes inclined inward from the opening of the multi-surface concave structure 13 toward the common edge 133 at the bottom, and each of the opposing sides of the first and second four-

side surfaces

131 and 132 has a triangular connecting surface 134 therebetween.

The first and second

quadrilateral surfaces

131 and 132 are preferably flat surfaces, so that light totally reflected by the first quadrilateral surface 131 is uniform, and a good light output effect is ensured.

In another preferred embodiment of the present invention, the side of the first quadrangular surface 131, the second quadrangular surface 132 and the triangular connection surface 134, which is away from the common side 133, is formed as the opening of a quadrangle having a side length of 0.01mm to 1 mm.

Preferably, the quadrilateral surface is a rectangle, and the length of the two sides of the first quadrilateral surface 131 and the second quadrilateral surface 132 far away from the common side 133 is preferably 0.3 mm.

As shown in fig. 2 to 5, the openings of the multi-sided recess structures 13 and the projections of the multi-sided recess structures 13 on the back surface of the light guide plate 1 are respectively shown in fig. 3 and 4, the projections are quadrangle ABCD, the sides of the quadrangle ABCD are 0.01-1mm, the quadrangle ABCD is preferably rectangular, and the lengths of the long sides BC and AD are preferably 0.3 mm. As can be seen from fig. 2, the first quadrilateral surface 131 is formed as a quadrilateral ADEF in fig. 2, the second quadrilateral surface 132 is formed as a quadrilateral BCEF in fig. 2, and the light can be totally reflected by the first quadrilateral surface 131.

In another preferred embodiment of the present invention, as shown in fig. 6 and 7, two triangular connection faces 134 are provided between the opposite sides of the first and second rectangular faces 131 and 132, and the opening of the first rectangular face 131, the second rectangular face 132, and four triangular connection faces 134, which are far from the common side 133, is a hexagon.

Preferably, four triangular connecting surfaces 134 are symmetrically distributed on the sides of the first and second four-

sided surfaces

131 and 132.

The utility model discloses a be connected with two triangle-shaped between the side of first four-sided face 131 and second four-sided face 132 and connect face 134, two triangle-shaped are connected the face 134 slope and are intersected in a crossing line, consequently, the projection of multiaspect sunk structure 13's opening or multiaspect sunk structure 13 on the back of light guide plate 1 forms into the hexagon, still is first four-sided face 131 reflection light in the multiaspect sunk structure 13 of hexagon, forms emergent ray.

As can be seen from the above description, a triangle connection surface 134 may be connected between the same sides of the first quadrilateral surface 131 and the second quadrilateral surface 132, and also two triangle connection surfaces 134 may be connected, and of course, more triangle connection surfaces 134 may also be connected, forming a more polyhedral concave structure, all belonging to the protection scope of the present invention. Furthermore, the utility model discloses a multiaspect sunk structure 13 is preferably first four sides face 131 and the triangle-shaped face 134 symmetric distribution that is connected on second four sides face 132 both sides limit, also can form to asymmetric distribution according to actual light shape requirement and production requirement, all belongs to the utility model discloses a protection scope. Meanwhile, the triangular connecting surface 134 is also inclined outwards from the bottom to the opening to facilitate demoulding during the production process.

As a specific structure of the present invention, the distance from the middle point of the common edge 133 to the opening of the multi-surface concave structure 13 is 0 to 5 mm.

That is, the height of the multi-surface concave structure 13 is 0-5mm, and the inclination angle of the first quadrilateral surface 131 is changed by changing the height of the multi-surface concave structure 13, so as to achieve the reflection direction of the light passing through the first quadrilateral surface 131, and the light is emitted according to the design required direction.

As another specific structure form of the present invention, as shown in fig. 1 and 9, the light incident portion 11 includes a light guide or a light focusing cup structure.

As shown in fig. 9, the light incident portion 11 is formed as a light guide provided on one side of the light guide plate 1. Further, the utility model discloses a light portion 11 can also be light gathering cup structure to can be a light gathering cup structure, perhaps a plurality of light gathering cup structures that set up side by side, perhaps, the utility model discloses a light portion 11 can also be as the planar structure shown in fig. 1, all belong to the utility model discloses a protection scope.

In addition, the present invention provides a vehicle lamp, including a light source and the light guide plate according to any one of the above-mentioned technical solutions, wherein the light source is disposed corresponding to the light incident portion 11, and the number and distribution of the light sources may be determined according to the structural form of the light incident portion 11 or the requirement of the lighting effect, and are not limited to one or one row.

Further, the third aspect of the present invention also provides a vehicle including the lamp according to the second aspect.

As can be seen from the above description, the utility model discloses a light guide plate includes light portion 11 and light portion 12 of going into, on the light guide plate 1 with be formed with a plurality of on the light guide plate back that light portion 12 is relative 1 inside recessed multiaspect sunk structure 13 of light guide plate, multiaspect sunk structure 13 is formed with the plane of reflection towards one side of light incident direction, the plane of reflection slope set up and can with incident light reflection extremely light portion 12 of going out. The utility model discloses a light guide plate 1 is through setting up the multiaspect sunk structure 13 of array distribution at the back of light guide plate 1, is formed with the plane of reflection by the opening to the bottom slope on the multiaspect sunk structure 13 to through the bottom that changes multiaspect sunk structure 13 to the height of opening, and reach the inclination's of the first four sides face 131 that changes multiaspect sunk structure 13 purpose, and then the light-emitting direction after control light reflects through multiaspect sunk structure 13, simple structure, the light-emitting is effectual.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.

In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.

Claims

1. The light guide plate is characterized by comprising a light inlet part (11) and a light outlet part (12), wherein a plurality of multi-surface concave structures (13) which are concave towards the inside of the light guide plate (1) are formed on the back surface of the light guide plate, opposite to the light outlet part (12), of the light guide plate (1), a reflecting surface is formed on one side, facing to the light incidence direction, of each multi-surface concave structure (13), and the reflecting surface is obliquely arranged and can reflect incident light to the light outlet part (12).

2. The light guide plate according to claim 1, wherein a plurality of faces of the multi-face depression structure (13) are each disposed to be inclined toward a depression space of the multi-face depression structure (13).

3. The light guide plate according to claim 1, wherein the multi-sided depression structure (13) is a four-sided depression structure or a six-sided depression structure.

4. The light guide plate according to claim 1, wherein the array of multi-faceted concave structures (13) is distributed on the back surface of the light guide plate.

5. The light guide plate according to claim 1, wherein the multi-surface depression structure (13) is formed with a first four-side surface (131) and a second four-side surface (132), the first four-side surface (131) and the second four-side surface (132) having a common side (133), the common side (133) being formed as a bottom of the multi-surface depression structure (13), the first four-side surface (131) being provided as the reflection surface.

6. The light guide plate according to claim 5, wherein the first and second quadrangular faces (131, 132) are planes inclined inward from the opening portion of the multi-sided concave structure (13) toward the common side (133) of the bottom, and opposing sides of the first and second quadrangular faces (131, 132) each have a triangular connection face (134) therebetween.

7. The light guide plate according to claim 6, wherein sides of the first quadrangular surface (131), the second quadrangular surface (132), and the triangular connection surface (134) which are away from the common side (133) are formed as the opening of a quadrangle having a side of 0.01 to 1 mm.

8. The light guide plate according to claim 7, wherein the quadrangle shape is a rectangle.

9. The light guide plate according to claim 6, wherein two of the triangular connection faces (134) are provided between opposite sides of the first and second four-side faces (131, 132), and wherein the sides of the first and second four-side faces (131, 132) and four of the triangular connection faces (134) away from the common side (133) form the opening of a hexagon.

10. The light guide plate according to claim 9, wherein four triangular connection surfaces (134) are symmetrically distributed on the sides of the first and second quadrilateral surfaces (131, 132).

11. The light guide plate according to any one of claims 6 to 10, wherein a distance from a midpoint of the common edge (133) to the opening of the multi-sided recess structure (13) is 0-5 mm.

12. The light guide plate according to claim 1, wherein the light entry portion (11) comprises a light guide or light collection cup structure.

13. A vehicle lamp characterized by comprising a light source provided in correspondence with the light entry portion (11) and the light guide plate according to any one of claims 1 to 12.

14. A vehicle characterized by comprising the lamp according to claim 13.