Uniformly illuminated thick-walled optical structure

Abstract

The utility model discloses a kind of thick wall optical structures of even lighting, comprising: thick wall piece body, the light entrance end of thick wall piece body is provided with condenser, the light entrance focus of condenser is provided with LED light source, the lower end of condenser is provided with reflecting surface and horizontal stripe surface, the light exit end of thick wall piece body is equipped with light exit surface.The utility model is a kind of thick wall piece structure of even lighting, by reflecting surface and horizontal stripe surface cooperation, form double-path light exit mode, light beam is respectively reflected by reflecting surface and horizontal stripe surface total reflection light, and the utilization of light beam is higher, and horizontal stripe surface can diffuse light beam, good uniformity, can effectively solve the problem of poor uniformity of headlamp brightness stratification under the angle of view.

Description

Technical Field

[0001] This utility model relates to a thick-walled optical structure for use in automotive headlights, belonging to the field of automotive lighting technology. Background Technology

[0002] The mature development of LED light source technology has gradually replaced halogen bulbs as the preferred light source for automobiles. The development of LED light sources has led to the widespread application of LED light sources, along with optical design schemes using concentrators and thick-walled components, in automotive lighting design. However, with the rapid development of the automotive lighting industry, the requirements for the appearance and styling of automotive lights are becoming increasingly stringent, highlighting the shortcomings of existing technologies.

[0003] Specifically, from a top-down viewing angle, the current thick-walled optical system always has obvious dark areas or low overall brightness, making it difficult to meet customers' requirements for uniformity of vehicle lights. Utility Model Content

[0004] To address the aforementioned problems, this invention designs a thick-walled component structure with uniform light output. By adjusting the angle of the transverse stripes, the optical path is optimized, thereby improving beam utilization and light uniformity.

[0005] To achieve the above objectives, the present invention provides the following technical solution: The present invention has the following beneficial effects: a thick-walled optical structure with uniform illumination, comprising: a thick-walled body, a condenser provided at the light-incident end of the thick-walled body, an LED light source provided at the focal point of the light-incident port of the condenser, a reflective surface and a horizontal stripe surface provided at the lower end of the condenser, and a light-emitting surface provided at the light-emitting end of the thick-walled body.

[0006] The horizontal stripes of the horizontal stripe surface are at an angle of 5-15° to the extended surface of the bottom surface of the thick-walled part body.

[0007] The LED light source is collimated and incident on the reflective surface through the light-incident end of the light-concentrator. Part of the light beam is reflected by the reflective surface and then emitted from the light-emitting surface through the thick-walled component body. Part of the light beam is reflected by the reflective surface to the horizontal stripe surface, diffused and reflected by the horizontal stripe surface, and then emitted from the light-emitting surface through the thick-walled component body.

[0008] The light-input concentrator is either a circular concentrator or an irregularly shaped concentrator.

[0009] The irregularly shaped concentrator is an asymmetric concentrator, a stretched concentrator, or a nested concentrator.

[0010] The concentrator and the thick-walled component body can be an integral structure or two independent structures.

[0011] The reflecting surface is a total reflection surface.

[0012] The thick-walled component body is made of PMMA or PC material.

[0013] This invention discloses a thick-walled component structure for uniform illumination. Through the interaction of a reflective surface and a horizontal stripe surface, a dual-path light emission mode is formed. The light beam undergoes total internal reflection through both the reflective and horizontal stripe surfaces, resulting in higher beam utilization. Furthermore, the horizontal stripe surface diffuses the light beam, improving uniformity and effectively solving the problems of brightness layering and poor uniformity in vehicle headlights when viewed from above. The thick-walled component structure of this invention is easy to implement and saves production costs. Attached Figure Description

[0014] Figure 1 This is a side view of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the horizontal stripe structure of this utility model.

[0017] Figure 4 , Figure 5 This is a schematic diagram of the propagation of light in an optical system.

[0018] Figure 6 , Figure 7 This is a picture of a car headlight illuminated without horizontal stripes.

[0019] Figure 8 , Figure 9 This is a picture of a car headlight with a horizontal stripe structure illuminated. Detailed Implementation

[0020] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] like Figure 1-4 A thick-walled optical structure with uniform illumination includes a thick-walled body 1, a light-incident end 2 on the thick-walled body 1, a reflective surface 3, a transverse stripe surface with a specific angle range 4, and a light-emitting end 5. In this embodiment, a concentrator is provided at the light-inlet end 2. This concentrator can be circular, stretched, asymmetrical, or nested. The concentrator and the thick-walled component body can be a single unit or two separate structures. An LED light source 6 is provided at the focal point of the concentrator's light-inlet.

[0022] The light source is directed toward the focusing section of the concentrator, and the light emitted by the light source enters the concentrator.

[0023] Directly below the light-incident end 2 is the reflective surface 3, and to the right of the reflective surface 3 is a horizontal stripe surface with a specific angle range.

[0024] The light beam emitted by the light source is collimated by the condenser and then incident on the reflecting surface 3. A portion of the light beam is reflected by the reflecting surface 3 and then emitted from the light-emitting surface through the thick-walled structural body.

[0025] Another portion of the light beam that reaches the reflecting surface is reflected by the reflecting surface 3 to the horizontal stripe surface 4. The horizontal stripe surface 4, which has a specific angle, diffuses and reflects the light beam, which is then emitted from the light-emitting surface through the thick-walled structural body.

[0026] like Figure 5 This utility model discloses a thick-walled structure for uniform illumination. Through the interaction of the light-incident end 2, the reflective surface 3, and the horizontal stripe surface 4, the light beam is divided into two parts, which are reflected by the reflective surface and the horizontal stripe surface respectively. This results in high light efficiency and good uniformity. By adjusting the angle of the horizontal stripe surface, its diffusion capability can be controlled, making the light output more uniform and improving problems such as dark lines and uneven brightness when viewed from a top-down angle after the headlights are illuminated. Figure 6 As shown, there is a dark line dividing the bright area of ​​the headlights; Figure 7 There are clearly large, dark areas within. For example... Figure 8 , Figure 9 As shown, the dark lines have disappeared, and the brightness is higher and more uniform.

[0027] In this embodiment, to optimize the optical path structure and improve the uniformity of illumination, the horizontal stripes of the horizontal stripe surface are set to be at an angle of 5-15° with the bottom extension surface of the thick-walled part.

[0028] The light-emitting surface is decorated with a light distribution pattern, which can be a corn kernel pattern. The size, width, curvature, and arch height of the pattern can be adjusted according to the usage requirements.

[0029] For ease of material selection, the body 1 of the thick-walled component is made of PMMA or PC material.

[0030] In this embodiment, the LED light source 6 consists of 20 LED light sources placed at the focal point of the condenser and perpendicular to the plane of the condenser, so that the light emitted by the LED light sources is collimated and emitted after passing through the condenser.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A thick-walled optical structure that is uniformly illuminated, characterized by, include: The thick-walled component body (1) has a light-inlet end (2) with a light-concentrating device, an LED light source at the light-inlet focal point of the light-concentrating device, a reflective surface (3) and a horizontal stripe surface (4) at the lower end of the light-concentrating device, and a light-outlet end (5) of the thick-walled component body (1) with a light-outlet surface.

2. A thick-walled optical structure of uniform illumination according to claim 1, characterized in that: The horizontal stripes of the horizontal stripe surface (4) are at an angle of 5-15° to the bottom extension surface of the thick-walled body (1).

3. A thick-walled optical structure of uniform illumination according to claim 1, characterized in that: The LED light source is collimated by the condenser of the light-incident end (2) and incident onto the reflective surface (3). After being reflected by the reflective surface (3), part of the light beam is emitted from the light-emitting surface through the thick-walled body. Part of the light beam is reflected by the reflective surface (3) to the horizontal stripe surface (4), diffused and reflected by the horizontal stripe surface (4), and emitted from the light-emitting surface through the thick-walled body.

4. A uniformly lit thick-walled optical structure according to claim 1, characterized in that: The light-input concentrator is either a circular concentrator or an irregularly shaped concentrator.

5. A uniformly lit thick-walled optical structure according to claim 4, characterized in that: The irregularly shaped concentrator is an asymmetric concentrator, a stretched concentrator, or a nested concentrator.

6. The thick-walled optical structure with uniform illumination according to claim 1, characterized in that: The concentrator and the thick-walled body (1) adopt an integrated structure or two independent structures.

7. A uniformly lit thick-walled optical structure according to claim 1, characterized in that: The reflective surface (3) is a total reflection surface.

8. The thick-walled optical structure with uniform illumination according to claim 1, characterized in that: The thick-walled component body (1) is made of PMMA or PC material.

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