Bijection light guide strip

Abstract

The utility model belongs to the technical field of light guide strips, and particularly relates to a bijection light guide strip which comprises a first light guide part and a second light guide part, the first light guide part and the second light guide part are integrally formed through injection molding, and titanium dioxide is arranged in at least one of the first light guide part and the second light guide part. Titanium dioxide is added into at least one of the first light guide part and the second light guide part, the titanium dioxide has a high refractive index, and when light is transmitted in the light guide strip and encounters titanium dioxide particles, the light can be refracted and scattered at the interface of the light guide strip. Therefore, the light can be better limited in the light guide strip, the overflow of the light is reduced, the propagation path of the light in the light guide strip is increased, the retention time of the light in the light guide strip is prolonged, the capture and transmission capability of the light guide strip on the light is improved, the light emitting uniformity of the light guide strip is improved, and the problems of non-uniform local brightness or light spots and the like are avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of light guide strip, specifically relates to a double -shot light guide strip. BACKGROUND

[0002] In prior art, light guide strip usually adopts single material injection molding, and there are problems of low light transmission efficiency, poor light emission uniformity and the like, in addition, the structural design of traditional light guide strip is relatively simple, and cannot meet complex optical requirements in some specific application scenarios.

[0003] To solve the above problems, a double -shot light guide strip is provided in the application. UTILITY MODEL CONTENTS

[0004] To solve the above problems in prior art, the utility model provides a double -shot light guide strip, which has the characteristics of improving light transmission efficiency and light emission uniformity.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a double -shot light guide strip, which comprises a first light guide part and a second light guide part, the first light guide part and the second light guide part are integrally formed by injection molding, the first light guide part and the second light guide part are made of acrylic (PMMA) or polycarbonate (PC), and at least one of the first light guide part and the second light guide part has titanium dioxide.

[0006] As a preferred technical scheme of the utility model, the bottom of the first light guide part and the second light guide part is provided with a groove, and the position of the groove corresponds to the position of the light source.

[0007] As a preferred technical scheme of the utility model, the contact surface of the first light guide part and the second light guide part is formed with a sawtooth pattern.

[0008] As a preferred technical scheme of the utility model, the first light guide part is provided with an assembling lug on one side.

[0009] As a preferred technical scheme of the utility model, the first light guide part contains titanium dioxide, and the second light guide part does not set titanium dioxide.

[0010] As a preferred technical scheme of the utility model, the second light guide part contains titanium dioxide, and the first light guide part does not set titanium dioxide.

[0011] As a preferred technical scheme of the utility model, the first light guide part and the second light guide part both contain titanium dioxide.

[0012] As a preferred technical scheme of the utility model, the surface of the light guide strip is subjected to sanding and polishing treatment.

[0013] As a preferred technical scheme of the utility model, the light guide strip surface is provided with a light reflection film.

[0014] Compared with the prior art, the utility model has the beneficial effects that: by adding titanium dioxide in at least one of the first light guide part or the second light guide part, the titanium dioxide has a high refractive index, when the light propagates in the light guide strip, the light will be refracted and scattered at the interface of the titanium dioxide particles. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model.

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is Figure 1 It is a structural schematic view of the other side;

[0018] Figure 3 It is Figure 1 It is a structural schematic view of the first light guide part and the second light guide part;

[0019] In the figure: 1, first light guide part; 11, assembling ear; 2, second light guide part; 3, sawtooth pattern; 4, recess. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0021] Embodiment 1

[0022] Please refer to Figures 1-3The utility model provides the following technical scheme: a double injection light guide strip, comprising first light guide part 1 and second light guide part 2, first light guide part 1, second light guide part 2 pass through injection integrated molding, in this embodiment, first light guide part 1 is not provided with titanium dioxide, and the second light guide part 2 contains titanium dioxide, and the titanium dioxide can scatter and refract light in this embodiment, and light is more evenly distributed on the light guide strip surface. In this embodiment, first light guide part 1 and second light guide part 2 are made of high-transmittance material, and the first light guide part 1 and the second light guide part 2 are made of acrylic (PMMA) or polycarbonate (PC).

[0023] In this embodiment, the first light guide part 1 can effectively conduct light and reduce light loss, and the titanium dioxide added in the second light guide part 2 can scatter and refract light, so that the light is more evenly distributed on the light guide strip surface.

[0024] In this embodiment, the bottom of the first light guide part 1 and the second light guide part is provided with a groove 4, the position of the groove 4 corresponds to the position of the light source, and the number of the grooves 4 is matched and set according to the arrangement number of the light source. In this example, the groove 4 is a V-shaped groove. The light of the light source enters the first light guide part 1 from the groove 4.

[0025] In this embodiment, the contact surface of the first light guide part 1 and the second light guide part 2 is formed with a sawtooth pattern 3, and the sawtooth pattern 3 is integrally formed by injection molding to ensure that the two are tightly combined and do not have a layered phenomenon.

[0026] In this embodiment, one side of the first light guide part 1 is provided with an assembly lug 11, which is used for mounting the light guide strip and can be adjusted in the molding position according to actual needs.

[0027] In this embodiment, the surface of the light guide strip is subjected to sanding and polishing treatment.

[0028] In this embodiment, the surface of the light guide strip is provided with a reflective film.

[0029] Embodiment 2

[0030] The difference between this embodiment and embodiment 1 is that the position of titanium dioxide in the light guide strip is different, and the remaining technical features are the same.

[0031] In this embodiment, the first light guide part 1 contains titanium dioxide, and the second light guide part 2 does not contain titanium dioxide, and the titanium dioxide can scatter and refract light, so that the light is more evenly distributed on the light guide strip surface. At the same time, compared with the light guide strip in embodiment 1, the light guide strip in this embodiment can reduce the brightness to adapt to different application scenarios and needs.

[0032] Embodiment 3

[0033] The difference between the embodiment and the embodiment 1 or the embodiment 2 is that the positions of the titanium dioxide arranged in the light guide strips are different, and the rest technical features are the same.

[0034] In the embodiment, the titanium dioxide can scatter and refract the light, so that the light is more uniformly distributed on the surface of the light guide strip.

[0035] Working principle and use process of the utility model:

[0036] The shape of the double-shot light guide strip can be designed according to actual requirements, such as straight line type, curved line type, ring type, etc.

[0037] After the first light guide part 1 is formed, the sawtooth pattern 3 is formed on the end face, and then the second light guide part 2 is formed in the sawtooth pattern 3 part, the first light guide part 1 and the second light guide part 2 are integrally formed by injection molding process to ensure that the combination between them is tight, and the delamination phenomenon will not occur, and then the surface of the light guide strip can be treated specially, such as frosted polishing, etc., and the reflective film can also be added on the surface to change the light output effect, by designing different shapes and surface treatment methods, various complex optical application scenes can be met.

[0038] The first light guide part 1 and the second light guide part 2 are both made of high light transmittance material, the high light transmittance material can effectively conduct light and reduce light loss, and at least one of them has titanium dioxide inside. The titanium dioxide can scatter and refract the light, so that the light is more uniformly distributed on the surface of the light guide strip.

[0039] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and not for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A dual-projection light guide strip, characterized by: The light guide bar comprises a first light guide part (1) and a second light guide part (2), the first light guide part (1) and the second light guide part (2) are integrally formed by injection molding, and at least one of the first light guide part (1) and the second light guide part (2) contains titanium dioxide.

2. The dual-projection light bar of claim 1, wherein: The bottom of the first light guide part (1) and the second light guide part is provided with a groove (4), and the position of the groove (4) corresponds to the position of the light source.

3. The dual-projection light bar of claim 1, wherein: The contact surface of the first light guide part (1) and the second light guide part (2) is formed with a sawtooth pattern (3).

4. The dual-projection light bar of claim 1, wherein: One side of the first light guide part (1) is provided with an assembling lug (11).

5. The dual-projection light bar of claim 1, wherein: The first light guide part (1) contains titanium dioxide, and the second light guide part (2) is not provided with titanium dioxide.

6. The dual-projection light bar of claim 1, wherein: The second light guide part (2) contains titanium dioxide, and the first light guide part (1) is not provided with titanium dioxide.

7. The dual-projection light bar of claim 1, wherein: The first light guide part (1) and the second light guide part (2) both contain titanium dioxide.

8. A dual-projection light bar according to any one of claims 1-7, wherein: The surface of the light guide bar is subjected to sanding and polishing treatment.

9. A dual-projection light bar according to claim 8, wherein: The surface of the light guide bar is provided with a reflective film.

Images