Reflection type light guide plate thick wall structure and optical system

Abstract

The utility model provides a reflection-type light guide plate thick-wall structure. The reflection-type light guide plate thick-wall structure comprises an end collimating reflector, first bottom light guide teeth, a second light turning total reflection surface, a first light turning total reflection surface, second bottom light guide teeth, a top surface U-shaped scribed line and front surface laser etching patterns which are sequentially arranged in the horizontal direction, wherein the second light turning total reflection surface and the first light turning total reflection surface are arranged in parallel, and the second bottom light guide teeth and the top surface U-shaped scribed line are arranged in parallel. The end collimating reflector faces the first bottom light guide tooth, the two ends of the first light steering total reflection surface are connected with the first bottom light guide tooth and the second bottom light guide tooth respectively, and the top surface U-shaped scribed line is arranged above the second bottom light guide tooth and connected with the second light steering total reflection surface. And the front surface laser etching patterns are respectively connected with the top surface U-shaped scribed line and the second bottom light guide teeth. According to the utility model, two approximately vertical surfaces can emit light at the same time, the design space is greatly saved, and the design cost is reduced; the uniformity of the light-emitting effect is improved, and the lighting effect is more stereoscopic.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile lamps, in particular to a reflective light guide plate thick-wall structure and an optical system. Background Art

[0002] With the advancement of technology and the improvement of human aesthetics, the design of automotive lights is no longer limited to meeting basic regulatory requirements. In addition, more uniform and distinctive lighting effects are required. Compared with single-sided lighting, multi-faceted lighting effects have a more three-dimensional and technological feel, and are favored by various OEMs.

[0003] Traditional multi-faceted lighting effects often use two optical systems. The rear LED is responsible for illuminating the front surface, and the lower LED is responsible for illuminating the upper surface. This optical solution not only requires more space but also requires more cost. In addition, because the optical axes of the two sets of LEDs are nearly perpendicular, the lighting effects are inconsistent at different viewing angles. Utility Model Content

[0004] In view of the above problems, the purpose of the present invention is to provide a reflective light guide plate with a thick-wall structure and an optical system, which allows two surfaces to emit light at the same time and with uniform lighting effect.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The utility model provides a reflective light guide plate thick-wall structure, comprising an end collimating reflector, a first bottom light guide tooth, a second light redirecting total reflection surface and a first light redirecting total reflection surface arranged in parallel in a horizontal direction, a second bottom light guide tooth and a top surface U-shaped engraved line arranged in parallel, and a front surface laser engraved pattern; the end collimating reflector is arranged toward the first bottom light guide tooth, the two ends of the first light redirecting total reflection surface are respectively connected to the first bottom light guide tooth and the second bottom light guide tooth, the top surface U-shaped engraved line is arranged above the second bottom light guide tooth and is connected to the second light redirecting total reflection surface, and the front surface laser engraved pattern is respectively connected to the top surface U-shaped engraved line and the second bottom light guide tooth.

[0007] Further preferably, the end collimating reflective mirror surface is plated with aluminum.

[0008] Further preferably, the included angles between the first light deflecting total reflection surface, the second light deflecting total reflection surface and the plane where the first bottom light guiding tooth is located are 30° to 50°.

[0009] Further preferably, the included angle between the first light deflecting total reflection surface, the second light deflecting total reflection surface and the plane where the first bottom light guide tooth is located is 45°.

[0010] Further preferably, the top surface U-shaped engraved line includes a plurality of U-shaped grooves arranged at even intervals.

[0011] Further preferably, the width of the U-shaped groove is 0.2 mm and the spacing is 1 mm.

[0012] Further preferably, the pattern size of the laser-engraved pattern on the front surface is 0.5 mm×0.5 mm.

[0013] Further preferably, the surfaces of the first bottom light guide tooth and the second bottom light guide tooth are both provided with a plurality of tooth structures, the tooth structures become larger in size and the tooth structure spacing becomes smaller in the direction away from the end collimating reflector, and the tooth structures have arc surfaces.

[0014] The utility model also provides an optical system, comprising a light source and the above-mentioned reflective light guide plate thick-wall structure.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model realizes simultaneous illumination of two nearly perpendicular surfaces through a single set of light sources and a single optical structure, which greatly saves design space and reduces design costs compared to traditional optical solutions; increases the uniformity of the luminous effect, and makes the lighting effect more three-dimensional. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 A schematic diagram of the thick-wall structure of the reflective light guide plate provided by the utility model;

[0019] Figure 2 This is a right view of the thick-walled structure of the reflective light guide plate provided by the utility model;

[0020] Figure 3 This is a light path diagram of the reflective light guide plate thick-wall structure provided by the utility model;

[0021] Figure 4 A partial enlarged view of the first bottom light guide tooth and the second bottom light guide tooth of the reflective light guide plate thick-wall structure provided by the present invention;

[0022] Figure 5 A partial enlarged view of the U-shaped engraved line on the top surface of the thick-walled structure of the reflective light guide plate provided by the present invention;

[0023] Illustration: 1-end collimating reflector, 2-second light redirecting total reflection surface, 3-top surface U-shaped line, 4-front surface laser engraved pattern, 5-second bottom light guide tooth, 6-first light redirecting total reflection surface, 7-first bottom light guide tooth.

[0024] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0025] To better understand the present invention, various aspects of the present invention will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrations of embodiments of the present invention and are not intended to limit the scope of the present invention in any way. Throughout this specification, like reference numerals refer to like elements. The expression "and / or" includes any and all combinations of one or more of the associated listed items.

[0026] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms cannot be understood as limiting the present invention.

[0027] It should also be understood that the terms "comprises," "including," "having," "includes," and / or "comprising," when used in this specification, indicate the presence of the stated features, elements, and / or components, but do not preclude the presence or addition of one or more other features, elements, components, and / or combinations thereof. In addition, when expressions such as "at least one of..." appear after a list of listed features, they modify the entire list of features rather than modifying the individual elements in the list. In addition, when describing embodiments of the present invention, "may" is used to mean "one or more embodiments of the present invention." Furthermore, the term "exemplary" is intended to refer to an example or illustration.

[0028] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art to which the present invention pertains. It should also be understood that terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and will not be interpreted in an idealized or overly formal sense unless explicitly defined herein.

[0029] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] like Figures 1 to 5 As shown, a reflective light guide plate with a thick wall structure includes an end collimating reflector 1, a first bottom light guide tooth 7, a second light deflection total reflection surface 2 and a first light deflection total reflection surface 6 arranged in parallel in a horizontal direction, a second bottom light guide tooth 5 arranged in parallel, a top surface U-shaped scoreline 3, and a front surface laser engraved pattern 4. The end collimating reflector 1 is arranged toward the first bottom light guide tooth 7. The first light deflection total reflection surface 6 connects the first bottom light guide tooth 7 and the second bottom light guide tooth 5 at both ends. The top surface U-shaped scoreline is arranged above the second bottom light guide tooth 5 and connected to the second light deflection total reflection surface 2. The front surface laser engraved pattern 4 connects the top surface U-shaped scoreline and the second bottom light guide tooth 5. After passing through the end collimating reflector 1, the light is split into three parts. The first part passes through the first light deflection total reflection surface 6 and is reflected onto the second light deflection total reflection surface 2, and is emitted through the laser-engraved pattern 4 on the front surface. The second part passes through the first light deflection total reflection surface 6 and is reflected onto the second light deflection total reflection surface 2, and then reflects onto the second bottom light guide tooth 5 and is emitted through the top surface U-shaped inscribed line. The third part passes through the first bottom light guide tooth 7 and is emitted directly from the top surface U-shaped inscribed line. Through this solution, the utility model achieves simultaneous illumination from two nearly perpendicular surfaces, with uniform lighting effects and a more three-dimensional effect.

[0031] In order to increase the uniformity of the luminous effect and improve the light efficiency, the end collimating reflector 1 is plated with aluminum.

[0032] More specifically, the angle between the first light redirecting total reflection surface 6 and the second light redirecting total reflection surface 2 and the plane where the first bottom light guide tooth 7 is located is 30° to 50°. In a preferred embodiment, the angle is 45°, so that the light remains parallel after two reflections.

[0033] To further enhance the glow effect, please refer to Figure 5 As shown, the top surface U-shaped line includes several evenly spaced U-shaped grooves, with a width a of 0.2 mm and a spacing b of 1 mm between the U-shaped grooves. The U-shaped grooves diffuse light, ensuring consistent lighting effects from different viewing angles.

[0034] More specifically, the size of the laser-engraved pattern 4 on the front surface is 0.5 mm x 0.5 mm, which has the effect of diffusing light, making the luminous effect of the front surface more uniform.

[0035] For more specific information, please refer to Figure 4As shown, the surfaces of the first bottom light guide teeth 7 and the second bottom light guide teeth 5 are both provided with a plurality of tooth structures, and the tooth structure size becomes larger and the tooth structure spacing becomes smaller in the direction away from the end collimating reflector 1, and the tooth structure has an arc surface. It can be understood that the surfaces of the first bottom light guide teeth 7 and the second bottom light guide teeth 5 are both provided with a plurality of tooth structures for reflecting light, thereby improving the light reflection efficiency. With the multiple reflections of light, the light away from the end collimating reflector 1 gradually becomes less, so the tooth structure gradually becomes larger in size and the spacing becomes smaller in the direction away from the end collimating reflector 1, so that the light in the area where the light becomes less can be fully reflected, thereby improving the overall light uniformity effect of the thick-walled structure of the reflective light guide plate.

[0036] The utility model also provides an optical system, including a light source and the above-mentioned reflective light guide plate thick-wall structure. The light source can be an LED. After the light emitted by the LED is collimated into a small-angle light by the end collimating reflector 1, a part of the light hits the first bottom light guide tooth 7, and is reflected by the first bottom light guide tooth 7 and hits the top surface U-shaped engraved line 3, lighting up the front half of the top surface U-shaped engraved line 3; the other part of the light changes its direction after two reflections by the first light turning total reflection surface 6 and the second light turning total reflection surface 2, and a part of it hits the front surface laser engraved pattern 4, achieving a uniform lighting effect on the front surface, and another part of the light hits the second bottom light guide tooth 5, and after being fully reflected by the second bottom light guide tooth 5, it hits the top surface U-shaped engraved line 3, lighting up the back half of the top surface U-shaped engraved line 3, achieving a uniform lighting effect.

[0037] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A reflective light guide plate thick-wall structure, characterized in that: The invention comprises an end collimating reflector (1), a first bottom light guide tooth (7), a second light redirecting total reflection surface (2) and a first light redirecting total reflection surface (6) arranged in parallel in a horizontal direction, a second bottom light guide tooth (5) and a top surface U-shaped engraved line (3) arranged in parallel, and a front surface laser engraved pattern (4); the end collimating reflector (1) is arranged toward the first bottom light guide tooth (7), two ends of the first light redirecting total reflection surface (6) are respectively connected to the first bottom light guide tooth (7) and the second bottom light guide tooth (5), the top surface U-shaped engraved line (3) is arranged above the second bottom light guide tooth (5) and is connected to the second light redirecting total reflection surface (2), and the front surface laser engraved pattern (4) is respectively connected to the top surface U-shaped engraved line (3) and the second bottom light guide tooth (5).

2. The reflective light guide plate thick-wall structure according to claim 1, characterized in that: The end collimating reflector (1) is plated with aluminum.

3. The reflective light guide plate thick-wall structure according to claim 1, characterized in that: The included angles between the first light-deflecting total reflection surface (6), the second light-deflecting total reflection surface (2), and the plane where the first bottom light-guiding tooth (7) is located are 30° to 50°.

4. The reflective light guide plate thick-wall structure according to claim 3, characterized in that: The included angle between the first light deflection total reflection surface (6), the second light deflection total reflection surface (2) and the plane where the first bottom light guide tooth (7) is located is 45°.

5. The reflective light guide plate thick-wall structure according to claim 1, characterized in that: The top surface U-shaped engraved line (3) comprises a plurality of U-shaped grooves arranged at even intervals.

6. The reflective light guide plate thick-wall structure according to claim 5, characterized in that: The width of the U-shaped groove is 0.2 mm and the spacing is 1 mm.

7. The reflective light guide plate thick-wall structure according to claim 1, characterized in that: The pattern size of the front surface laser engraved pattern (4) is 0.5mm×0.5mm.

8. The reflective light guide plate thick-wall structure according to claim 1, characterized in that: The surfaces of the first bottom light guide tooth (7) and the second bottom light guide tooth (5) are both provided with a plurality of tooth structures, the tooth structures become larger in size and the tooth structure spacing becomes smaller in a direction away from the end collimating reflector (1), and the tooth structures have arc surfaces.

9. An optical system, characterized in that: The invention comprises a light source and a reflective light guide plate thick-wall structure as claimed in any one of claims 1 to 8.

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