A signal light of a thick-wall light guide and light curtain combination

Abstract

The utility model belongs to the technical field of automobile atmosphere lamp, concretely relates to a signal lamp of thick wall light guide and light curtain combination, including LED module, light guide plate, lens, wherein the light guide plate is integral piece, including plane plate and circular arc plate, wherein circular arc plate sets in the position of the middle part of plane plate lower end, and the plane plate front end edge is equipped with a plurality of lenses, LED module is located in the front end of lens, can emit the light ray irradiation into the lens, and a part of light ray passes through plane plate after the lens and emits, another part passes through circular arc plate and emits, the utility model can realize the optical effect of being different from others, since the light guide adopts the laser processing mode, visual observation does not have the tooth trace of other ordinary light guide tooth.

Description

Technical Field

[0001] This utility model belongs to the field of automotive ambient lighting technology, specifically relating to a signal light combining a thick-walled light guide and a light curtain. Background Technology

[0002] Traditional automotive signal lights mostly use direct LED illumination or ordinary light guide structures, which have the following problems:

[0003] 1. Insufficient uniformity: Ordinary light guides rely on tooth-like structures to guide light, which can easily produce bright and dark stripes or tooth marks, affecting the visual effect;

[0004] 2. Design limitations: A single planar light guide is difficult to achieve complex curved surface light emission effects;

[0005] 3. Light efficiency loss: Light is easily scattered during transmission, resulting in uneven brightness or energy waste.

[0006] Therefore, how to achieve a curved surface light source with no tooth marks and high uniformity, while meeting the requirements of lightweight and easy assembly of automotive signal lights, is an urgent problem to be solved in this field. Utility Model Content

[0007] To overcome the above problems, this utility model provides a signal light combining a thick-walled light guide and a light curtain; the light guide is used in automotive ambient lighting; this utility model achieves unique optical effects through three optical components, and because the light guide is processed by laser, there are no visible tooth marks like those of other ordinary light guides.

[0008] A signal light combining a thick-walled light guide and a light curtain includes an LED module 1, a light guide plate 2, and a lens 3. The light guide plate 2 is a single piece, including a flat plate 21 and an arc plate 22. The arc plate 22 is located at the lower center of the flat plate 21, and multiple lenses 3 are provided on the front edge of the flat plate. The LED module 1 is located at the front end of the lens 3 and can illuminate the emitted light into the lens 3. After passing through the lens 3, part of the light is emitted through the flat plate 21 and the other part is emitted through the arc plate 22.

[0009] The top of the arc plate 22 is located at the bottom of the flat plate 21, and the whole is curved towards the front.

[0010] The front end of the planar plate 21 is provided with multiple protrusions, and a lens 3 is provided in front of the protrusions.

[0011] Lens 3 is a TIR lens.

[0012] The two ends of the flat plate 21 extend outward to form screw posts 23.

[0013] The connection between the arc plate 22 and the flat plate 21 of the light guide plate 2 adopts a gradual thickness transition with a thickness change rate of 0.5 mm / cm.

[0014] The surface of the TIR lens 3 is provided with a nanoscale anti-reflective coating.

[0015] The beneficial effects of this utility model are:

[0016] 1. Seamless and uniform light emission: By laser processing of thick-walled light guides, the traditional tooth-like structure is eliminated, achieving a seamless light curtain effect;

[0017] 2. Dual-light-path design: The flat panel provides the main lighting surface, while the curved panel enhances the three-dimensional visual effect;

[0018] 3. High light efficiency: TIR lenses reduce light loss and increase light utilization by ≥20%;

[0019] 4. Easy assembly: The integrated light guide plate and screw post design simplifies the installation process.

[0020] In summary, this utility model changes the light emission form of LED point light source to surface light source, and uses light guide to achieve a unique shape. It is visually very uniform, and because the light guide is processed by laser, there are no tooth marks like those of other ordinary light guides. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0022] Fig. 1 This is a schematic diagram of the disassembled structure of this utility model.

[0023] Fig. 2 This is a schematic diagram of the back structure of the light guide plate of this utility model.

[0024] Fig. 3 This is a schematic diagram of the optical path of this utility model.

[0025] The components include: LED module 1, light guide plate 2, flat plate 21, arc plate 22, screw post 23, and lens 3. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0030] Example 1

[0031] A signal light combining a thick-walled light guide and a light curtain, such as Figs. 1-3 As shown, the device includes an LED module 1, a light guide plate 2, and a lens 3. The light guide plate 2 is a single piece, comprising a flat plate 21 and an arc plate 22. The arc plate 22 is located at the lower center of the flat plate 21, and multiple lenses 3 are provided at the front edge of the flat plate. The LED module 1 is located at the front end of the lens 3, enabling it to illuminate the emitted light into the lens 3. After passing through the lens 3, part of the light passes through the flat plate 21 and is emitted out, while the other part passes through the arc plate 22 and is emitted out.

[0032] The top of the arc plate 22 is located at the bottom of the flat plate 21, and the whole is curved towards the front.

[0033] The front end of the flat plate 21 is provided with multiple protrusions, and a lens 3 is provided in front of the protrusions.

[0034] Lens 3 is a TIR lens.

[0035] The two ends of the planar plate 21 extend outward to form screw posts.

[0036] In use, the light guide plate 2 is installed inside the lampshade by screw posts, and the LED module 1 is also fixed inside the lampshade. The light source emitted by the LED module 1 enters the light guide plate 2 through the lens 3. Part of it is emitted through the flat plate 21 and the other part is emitted through the arc plate 22. The final lighting effect is very uniform and unique.

[0037] Example 2

[0038] like Figs. 1-3 As shown, the LED module 1 is fixed inside the lampshade, and the light emitted by it is refracted by the TIR lens 3 before entering the light guide plate 2. The flat plate 21 of the light guide plate 2 diffuses the light laterally to form a uniform surface light source, while the arc plate 22 bends some of the light forward and projects it to form a three-dimensional light curtain. During installation, the light guide plate 2 is fixed to the predetermined position on the lampshade by screw posts 23 to ensure the alignment accuracy between the LED module 1 and the lens 3.

[0039] ≤0.2mm.

[0040] Key parameter examples

[0041] Light guide plate material: PMMA (refractive index 1.49);

[0042] Flat plate thickness: 5mm; curved plate radius of curvature: 8mm.

[0043] TIR lens material: polycarbonate, focal length 3mm.

[0044] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the scope of protection of the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, any equivalent substitutions or modifications made by those skilled in the art based on the technical solution and the inventive concept of the present invention within the scope of the technical concept disclosed in the present invention shall all fall within the scope of protection of the present invention.

[0045] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0046] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A signal light combining a thick-walled light guide and a light curtain, characterized in that, The device includes an LED module (1), a light guide plate (2), and a lens (3). The light guide plate (2) is a single piece, consisting of a flat plate (21) and an arc plate (22). The arc plate (22) is located at the lower center of the flat plate (21), and the front edge of the flat plate is provided with multiple lenses (3). The LED module (1) is located at the front end of the lens (3) and can illuminate the emitted light into the lens (3). After passing through the lens (3), part of the light passes through the flat plate (21) and is emitted out, while the other part passes through the arc plate (22) and is emitted out.

2. The signal light combining a thick-walled light guide and a light curtain according to claim 1, characterized in that, The top of the arc plate (22) is located at the bottom of the flat plate (21), and the whole is curved towards the front.

3. A signal light combining a thick-walled light guide and a light curtain according to claim 1, characterized in that, The front end of the planar plate (21) is provided with multiple protrusions, and a lens (3) is provided in front of the protrusions.

4. A signal light combining a thick-walled light guide and a light curtain according to claim 1, characterized in that, The lens (3) is a TIR lens.

5. A signal light combining a thick-walled light guide and a light curtain according to claim 1, characterized in that, The two ends of the flat plate (21) extend outward to form screw posts (23).

6. A signal light combining a thick-walled light guide and a light curtain according to claim 1, characterized in that, The connection between the arc plate (22) and the flat plate (21) of the light guide plate (2) adopts a gradual thickness transition with a thickness change rate of 0.5 mm / cm.

7. A signal light combining a thick-walled light guide and a light curtain according to claim 1, characterized in that, The TIR lens (3) has a nanoscale anti-reflective coating on its surface.

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