一种车灯内配光导结构

Abstract

本实用新型涉及车灯技术领域，具体公开一种车灯内配光导结构，包括光导支架，光导支架上设有出光口，出光口处设有内配导光件，光导支架内侧设有光导主体，内配导光件面朝光导主体一侧设有入射面，内配导光件远离光导主体一侧设有出光面，出光面与入射面上铺设有用于调节出光方向并将光线往中心汇聚的无台阶花纹，光导主体外侧设有光导齿结构。通过光导齿结构和光导支架优化光线在光导主体外的传导路径，实现对光线的初步分散，内配导光件通过出光面与入射面上的无台阶花纹调节出光方向并将光线往中心汇聚，通过三者配合，在降低内配导光件壁厚，内配通透的同时，实现光线高效传导与均匀分布，保持了整体的造型美学。

Claims

1. A light distribution guide structure in a vehicle lamp, comprising a light guide support (2) provided with a light outlet, wherein an inner distribution light guide (1) is arranged at the light outlet, characterized in that: The light guide bracket (2) has a light guide body (3) inside, and the inner light guide component (1) is placed in front of the light guide body (3); The inner light guide (1) has an incident surface (12) on the side facing the light guide body (3), and an output surface (11) on the side away from the light guide body (3). The output surface (11) and the incident surface (12) are covered with a stepless pattern (4) for adjusting the output direction and converging the light towards the center. The light guide body (3) is provided with a light guide tooth structure (5) on the outside. The light guide tooth structure (5) is laid on the side of the light guide body (3) away from the inner light guide component (1). The light guide bracket (2) is provided with an arc-shaped reflective surface on the side facing the light guide tooth structure (5). The arc-shaped reflective surface extends in the direction of the incident surface (12).

2. A light guide structure for a vehicle lamp according to claim 1, wherein: The optical guide tooth structure (5) is an optical guide groove (51) opened on the outside of the optical guide body (3). A number of beam splitting teeth (52) are laid on the optical guide groove (51), and each beam splitting tooth (52) is arranged in a stepped linear manner.

3. A light guide structure for a vehicle lamp according to claim 1, wherein: The stepless pattern (4) consists of several arc-shaped curved surfaces (41) arranged in a honeycomb pattern. The boundaries of the arc-shaped curved surfaces (41) are formed with a starting angle line (42) and an ending angle line (43). The starting angle line (42) forms an angle A with the normals of the light-emitting surface (11) and the incident surface (12). The ending angle line (43) forms an angle B with the normals of the light-emitting surface (11) and the incident surface (12). Where -90°≤angle A≤90°, -90°≤angle B≤90°.

4. The light guide structure inside a vehicle lamp according to claim 3, characterized in that: The arc-shaped surface (41) is a non-rotationally symmetric optical surface constructed based on the conic section equation. By changing the conic section parameters, the direction of the light entering the inner light guide (1) is adjusted, thereby dispersing the light.

5. A light guide structure for a vehicle lamp according to claim 4, wherein: The conic section parameters have three adjustment methods: Adjustment method 1: Set the conic section parameter to C1, 0 < C1 < 0.5; Adjustment method 2: Set the conic section parameter to C2, 0.5 < C2 < 1; Adjustment method 3: Set the conic section parameter to C3, C3 = 0.

5.

6. A light guide structure for a vehicle lamp according to claim 3, wherein: The curved surface (41) is presented as one of the following: a quadrilateral pattern, a hexagonal pattern, or a city wall brick pattern.

7. A light guide structure for a vehicle lamp according to any one of claims 1-6, characterized in that: The internal light guide (1) is a thick-walled light guide.

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