Light diffusion light guide structure

Abstract

The utility model discloses a light diffusion light guide structure which comprises a reflecting cover, a reflecting focus area is formed on the reflecting cover, the light diffusion light guide structure further comprises a light guide body, a convex arc face is arranged on the first face of the light guide body, a step face is arranged on the surface of the light guide body, and the first face of the light guide body receives light rays emitted from the reflecting focus area. And the light is refracted in the light guide body and then is emitted from the step surface to the reflecting cover to be reflected. Compared with the prior art, the LED lamp has the advantages that the LED lamp is simple in structure, light rays of the light source are refracted to the reflecting face of the reflecting cover for multiple times through the light guide body and then are emitted out, the light emitting range is enlarged, the original 120-degree light emitting light source can be changed into 360-degree light emitting light source, the optical utilization rate is improved, and the light emitting effect is improved. The front bright spots of the light source using the light source can be reduced, and the bright spots of the light source can be shielded.

Description

Technical Field

[0001] The utility model relates to the field of vehicle lamp decorative plates, and specifically designs a light diffusion and light guiding structure. Background Art

[0002] Existing headlights are mostly installed on a plate body, and a decorative plate is often installed on the plate body to increase the aesthetics. Existing decorative plates are mostly installed with screws. If the decorative plate is long, the end of the decorative plate will be raised. Therefore, it is very important to obtain a light diffusion and light guide structure that overcomes the above defects. Summary of the invention

[0003] In order to solve at least one of the above-mentioned technical problems, the utility model provides a light-diffusing light-guiding structure, including a reflective cover, on which a reflective focus area is formed, and also including a light guide body, the first surface of the light guide body is provided with a convex arc surface, the surface of the light guide body is provided with a step surface, the reflecting part of the reflective cover covers the step surface, the first surface of the light guide body receives the light emitted from the reflective focus area, the light is refracted in the light guide body, and then emitted from the step surface to the reflective cover for reflection.

[0004] The reflector cover has an opening, a light source is arranged at or outside the opening, the light is emitted from the light source, and the outer wall of the reflector cover expands toward the side away from the light source.

[0005] The step surface includes a plurality of columns, the diameters of which decrease in sequence along the axis of the light guide body to a direction away from the reflection focus area, and each of the columns is provided with a light refraction portion.

[0006] A depression is formed on one side of each of the columns away from the reflection focus area, and the inner wall of the depression is inclined to serve as a light refraction portion, and an angle is formed between the two opposite inner walls of the depression, and the angle is an acute angle, a right angle or an obtuse angle, and one of the two adjacent columns 303 is located in the depression of the other column.

[0007] The step surface is located within the reflection cavity of the reflection cover.

[0008] At least one reflecting surface is arranged on the inner wall of the reflecting cover, and the reflecting surface can be only one arc surface, or a plurality of spliced ​​planes.

[0009] A groove is formed on the first surface of the light guide, and a convex arc surface is formed on the bottom surface of the groove. The light source is arranged outside the groove.

[0010] The light source, the light guide and the reflector are coaxial. The light guide is at least partially located at the opening.

[0011] The light source may be an LED lamp.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention has a simple structure, and the light of the light source is refracted multiple times by the light guide body and then emitted from the reflective surface of the reflective cover, thereby increasing the luminous range, and the original 120-degree luminous light source can be changed to 360-degree luminous light, thereby improving optical utilization, reducing the front bright spot of the light source using the present invention, and shielding the bright spot of the light source itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an exploded view of the utility model;

[0014] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0015] Figure 3 It is a schematic diagram of the contour surface of the reflector of the utility model;

[0016] Figure 4 It is a three-dimensional diagram of the utility model;

[0017] Figure 5 This is a schematic diagram of the light path of the utility model;

[0018] Reference numerals:

[0019] 1. Light source;

[0020] 2 reflector; 201 reflective surface; 202 opening;

[0021] 3 light guide; 301 convex arc surface; 302 step surface; 303 column; 304 groove; 305 two side surfaces; 306 depression. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the present invention and to more clearly define the scope of protection claimed by the present invention, the present invention is described in detail below with respect to certain specific embodiments of the present invention. It should be noted that the following are only certain specific implementation methods of the present invention, which are only part of the embodiments of the present invention, and the specific and direct description of the relevant structures is only for the convenience of understanding the present invention, and the specific features do not naturally and directly limit the scope of implementation of the present invention.

[0023] Referring to the accompanying drawings, the utility model adopts the following technical scheme: a light diffusion light guide structure, comprising a reflector 2, a reflector 2 having a reflective focus area, and a light guide 3, a first surface of the light guide 3 having a convex arc surface 301, a surface of the light guide 3 having a step surface 302, a reflective portion of the reflector 2 covering the step surface 302, a first surface of the light guide 3 receiving light emitted from the reflective focus area, light refracted in the light guide 3 and then emitted from the step surface 302 to the reflector 2 for reflection, as shown in FIG. Figure 5 In the direction of the arrow.

[0024] The reflector 2 has an opening 202 , and a light source 1 is disposed at or outside the opening 202 . The light is emitted from the light source 1 , and the outer wall of the reflector 2 expands away from the light source 1 .

[0025] The step surface 302 includes a plurality of columns 303, the diameters of which decrease in sequence along the axis of the light guide 3 to a direction away from the reflective focus area, and each of the columns is provided with a light refraction portion. The plurality of columns are arranged coaxially. A depression 306 is formed on one side of each of the columns 303 away from the reflective focus area, and the inner wall of the depression is inclined to serve as a light refraction portion, and an angle is formed between the two opposite sides 305 of the inner wall of the depression, and the angle is an acute angle, a right angle or an obtuse angle, and one of the two adjacent columns 303 is located in the depression of the other column 303.

[0026] The step surface 302 is located within the reflection cavity of the reflection cover 2 .

[0027] At least one reflecting surface 201 is disposed on the inner wall of the reflecting cover 2 . The reflecting surface 201 may be only one curved surface or a plurality of joined flat surfaces.

[0028] A groove 304 is formed on the first surface of the light guide 3 , and the convex arc surface 301 is formed on the bottom surface of the groove 304 . The light source 1 is disposed outside the groove 304 .

[0029] The light source 1 , the light guide 3 , and the reflector 2 are coaxial. The light guide 3 is at least partially located at the opening 202 .

[0030] The light source 1 can be an LED lamp.

[0031] When the utility model is put into use, the LED lamp can be installed on a board, such as a circuit board, etc. The reflector 2 is fixed to the board directly or through a bracket, and the light guide 3 can be fixed on the board through the opening 202, or fixed on the reflector 2.

[0032] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention has a simple structure, and the light from the light source 1 is refracted multiple times by the light guide 3 and then emitted onto the reflective surface 201 of the reflective cover 2, thereby increasing the light emitting range, and the original 120-degree light emitting light source 1 can be changed to 360-degree light emitting light, thereby improving optical utilization, and reducing the bright spot on the front of the light source 1 using the present invention, thereby shielding the bright spot of the light source 1 itself.

[0033] The above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A light diffusion and light guiding structure, characterized in that: The invention comprises a reflective cover (2), a reflective focus area being formed on the reflective cover (2), and a light guide (3), a first surface of the light guide (3) being provided with a convex arc surface (301), a surface of the light guide (3) being provided with a step surface (302), a reflective portion of the reflective cover (2) covering the step surface (302), the first surface of the light guide (3) receiving light emitted from the reflective focus area, and after being refracted in the light guide (3), being emitted from the step surface (302) to the reflective cover (2) for reflection.

2. The light diffusion and light guiding structure according to claim 1, characterized in that: The reflector (2) has an opening (202), a light source (1) is provided at or outside the opening (202), the light is emitted from the light source (1), and the outer wall of the reflector (2) extends toward a side away from the light source (1).

3. The light diffusion and light guiding structure according to claim 1, characterized in that: The step surface (302) comprises a plurality of columns (303), the diameters of the plurality of columns (303) decreasing in sequence along the axis of the light guide (3) in a direction away from the reflective focus area, and each of the columns is provided with a light refraction portion.

4. The light diffusion and light guiding structure according to claim 3, characterized in that: The plurality of columns (303) are coaxially arranged.

5. The light diffusion and light guiding structure according to claim 3, characterized in that: A recess (306) is formed on one side of each of the columns (303) away from the reflection focus area, the inner wall of the recess is arranged in an inclined manner to serve as a light refraction portion, and an angle is formed between two opposite sides (305) of the inner walls of the recess, and the angle is an acute angle, a right angle or an obtuse angle, and one of the two adjacent columns (303) is located in the recess of the other column (303).

6. The light diffusion and light guiding structure according to claim 1, characterized in that: The step surface (302) is located within the reflection cavity range of the reflection cover (2).

7. The light diffusion and light guiding structure according to claim 1, characterized in that: The first surface of the light guide (3) is provided with a groove (304), and the convex arc surface (301) is provided on the bottom surface of the groove (304).

8. The light diffusion and light guiding structure according to claim 1, characterized in that: At least one reflecting surface (201) is provided on the inner wall of the reflecting cover (2).

9. The light diffusion and light guiding structure according to claim 2, characterized in that: The axes of the light source (1), the light guide (3) and the reflector (2) are cocentric.

10. The light diffusion and light guiding structure according to claim 2, characterized in that: The light guide (3) is at least partially located at the opening (202).

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