Light guide structure suitable for single-double light color system

Abstract

The utility model belongs to the technical field of automobile lamps, and relates to a light guide structure suitable for a single-double light color system, which comprises a thick-wall light guide body, one side of the thick-wall light guide body is provided with an inclined first reflecting surface, and one side adjacent to the first reflecting surface is provided with a light emitting surface. The thick-wall light guide body is further provided with collimation structures and hollow triangular areas which are arranged in pairs, the collimation structures can collimate light emitted by the light source into three parts, the first part is directly reflected by the collimation structures to the light-emitting face to be emitted out, and the second part is reflected by the collimation structures to the first reflection face and then reflected by the first reflection face to the light-emitting face to be emitted out. And the third part is reflected to the hollow triangular area by the collimation structure and then is reflected to the light-emitting surface by the hollow triangular area to be emitted. The single-color optical system can be suitable for a single-color optical system and can also be suitable for a double-color optical system, and when the single-color optical system is used as a single color, the light-emitting area can be widened; and when being used as two colors, the double-core defocusing lens can solve the problems of uniformity and efficiency caused by double-core defocusing.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile lamps, and in particular relates to a light guide structure suitable for a single- and double-light color system. Background Art

[0002] With the development of science and technology and the improvement of living standards, cars have gradually become the main means of transportation for people to travel. In the field of vehicle lighting design and manufacturing, LED light sources have gradually become the main light source used in vehicle lighting due to their advantages such as fast response, low energy consumption, and stable chromaticity. In order to increase the lighting form of car lights, more and more car lights now use dual-color optical design.

[0003] However, currently, for dual-color multiplexing optical structures, a high-cost dual-core light source is often used through a collimated structure defocusing design to achieve it, which increases the cost and also reduces the uniformity of functional lighting and light efficiency. Utility Model Content

[0004] The purpose of the utility model is to solve the defects and shortcomings in the prior art and to design a light guide structure suitable for single and double light color systems which is simple in structure, stable and reliable, can broaden the luminous range, improve the lighting uniformity and save costs.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a light-guiding structure suitable for a single- and double-light-color system, comprising a thick-walled light-guiding body, one side of the thick-walled light-guiding body having a first reflecting surface arranged obliquely, and a side adjacent to the first reflecting surface having a light-emitting surface, and the thick-walled light-guiding body is also provided with a collimating structure and a hollow triangular area arranged in pairs, the collimating structure being able to collimate the light emitted by the light source into three parts, the first part being directly reflected by the collimating structure to the light-emitting surface for emission, the second part being reflected by the collimating structure to the first reflecting surface, and then being reflected by the first reflecting surface to the light-emitting surface for emission, and the third part being reflected by the collimating structure to the hollow triangular area, and then being reflected by the hollow triangular area to the light-emitting surface for emission.

[0006] Preferably, the collimating structure is arranged between the first reflecting surface and the hollow triangular area, and the collimating structure is located at the bottom or on both sides of the thick-walled light guide body.

[0007] Preferably, two of the collimating structures and two of the hollow triangular regions are provided.

[0008] Preferably, the collimating structure can collimate the light emitted by the light source into three equal parts.

[0009] Preferably, the inclined surface of the hollow triangular region is arranged opposite to the collimating structure, and the inclined surface has a second reflecting surface.

[0010] Preferably, the first reflecting surface and the second reflecting surface are both total reflecting surfaces.

[0011] Preferably, the angle between the first reflecting surface and the light emitting surface is 45°.

[0012] After adopting the above technical solution, the light guide structure suitable for single and double light color systems provided by the utility model has the following beneficial effects:

[0013] The light-guiding structure of the utility model can be applied to both monochromatic optical systems and dual-color optical systems. After multiple layers of reflection and total reflection, the uniformity is greatly improved. At the same time, the relative positions of the first reflecting surface, the hollow triangular area and the collimating structure can be adjusted according to actual needs, which is convenient and flexible and has a wide range of applications. Through the arrangement of two sets of collimating structures and hollow triangular areas, the two systems have the same principles and complement each other. When used as a single color, the light-emitting area can be widened; when used as a dual-color, the uniformity and efficiency problems caused by using dual-core defocusing can be solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a light guide structure suitable for a single- and double-light-color system of the utility model;

[0015] Figure 2 This is a schematic diagram of the optical path principle of the utility model;

[0016] Figure 3 This is a cross-sectional view of a light guide structure suitable for a single- and double-light-color system of the utility model;

[0017] Figure 4 for Figure 3 Schematic diagram of the corresponding optical path.

[0018] Among them: a thick-walled light guide body 1, a first reflection surface 2, a light emitting surface 3, a collimating structure 4, a hollow triangle area 5, and a second reflection surface 6. DETAILED DESCRIPTION

[0019] The present invention is further described clearly and completely below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0021] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0022] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0023] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0024] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0025] The utility model discloses a light guide structure suitable for a single-light and double-light color system, such as Figure 1-4 As shown, it includes a thick-walled light guide body 1, one side of the thick-walled light guide body 1 has a first reflective surface 2 arranged obliquely, and the side adjacent to the first reflective surface 2 has a light emitting surface 3, the angle between the first reflective surface 2 and the light emitting surface 3 is 45°, and the thick-walled light guide body 1 is also arranged with a collimating structure 4 and a hollow triangular area 5 arranged in pairs, specifically, the collimating structure 4 and the hollow triangular area 5 are each provided with two, the collimating structure 4 is arranged between the first reflective surface 2 and the hollow triangular area 5, and the collimating structure 4 is located in the thick-walled light guide body 1. The bottom of the body 1, or the collimating structure 4 can be separated on both sides. When there are two colors, one PCB enters light at the top and the other enters light at the bottom. Furthermore, the collimating structure 4 can collimate the light emitted by the light source into three parts. The first part is directly reflected by the collimating structure 4 to the light emitting surface 3 for emission, the second part is reflected by the collimating structure 4 to the first reflecting surface 2, and then reflected by the first reflecting surface 2 to the light emitting surface 3 for emission, and the third part is reflected by the collimating structure 4 to the hollow triangular area 5, and then reflected by the hollow triangular area 5 to the light emitting surface 3 for emission.

[0026] Among them, the inclined surface of the hollow triangular area 5 is arranged opposite to the collimating structure 4, and the inclined surface has a second reflecting surface 6, that is, the above-mentioned third part is reflected by the collimating structure 4 to the second reflecting surface 6, and then reflected by the second reflecting surface 6 to the light output surface 3. Furthermore, the first reflecting surface 2 and the second reflecting surface 6 are both total reflecting surfaces.

[0027] The utility model discloses a light-guiding structure suitable for single-color and double-color light systems, which can be suitable for both single-color optical systems and double-color optical systems. After multiple layers of reflection and total reflection, the uniformity is greatly improved. At the same time, the relative positions of the first reflecting surface, the hollow triangular area and the collimating structure can be adjusted according to actual needs, which is convenient and flexible and has a wide range of applications. Through the arrangement of two sets of collimating structures and hollow triangular areas, the two systems have the same principles and complement each other. When used as a single color, the light-emitting area can be widened. When used as a double color, the uniformity and efficiency problems caused by using double-core defocusing can be solved.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A light guide structure suitable for a single- and double-light color system, characterized in that: The thick-walled light guide body (1) comprises a first reflecting surface (2) arranged obliquely on one side of the thick-walled light guide body (1), and a light emitting surface (3) on the side adjacent to the first reflecting surface (2). The thick-walled light guide body (1) is also provided with a collimating structure (4) and a hollow triangular area (5) arranged in pairs. The collimating structure (4) can collimate light emitted by a light source into three parts. The first part is directly reflected by the collimating structure (4) to the light emitting surface (3) for emission. The second part is reflected by the collimating structure (4) to the first reflecting surface (2), and then reflected by the first reflecting surface (2) to the light emitting surface (3) for emission. The third part is reflected by the collimating structure (4) to the hollow triangular area (5), and then reflected by the hollow triangular area (5) to the light emitting surface (3) for emission.

2. A light guide structure suitable for a single- and double-light color system according to claim 1, characterized in that: The collimating structure (4) is arranged between the first reflecting surface (2) and the hollow triangular area (5), and the collimating structure (4) is located at the bottom of the thick-walled light guide body (1) or on both sides.

3. The light guide structure suitable for a single- and double-light color system according to claim 1, characterized in that: The collimating structures (4) and the hollow triangular regions (5) are each provided with two.

4. The light guide structure suitable for a single- and double-light color system according to claim 1, characterized in that: The collimating structure (4) can collimate the light emitted by the light source into three equal parts.

5. The light guide structure suitable for a single- and double-light color system according to claim 1, characterized in that: The inclined surface of the hollow triangular region (5) is arranged opposite to the collimating structure (4), and the inclined surface has a second reflecting surface (6).

6. The light guide structure suitable for a single- and double-light color system according to claim 5, characterized in that: The first reflecting surface (2) and the second reflecting surface (6) are both total reflecting surfaces.

7. The light guide structure suitable for a single- and double-light color system according to claim 1, characterized in that: The included angle between the first reflecting surface (2) and the light emitting surface (3) is 45°.

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