Vehicle Lighting System Angular Light Guide Uniform Distribution
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Solution Overview
Problem
Current vehicle lighting systems face challenges in achieving an even light pattern and distribution on non-planar configurations while meeting safety and aesthetic requirements, particularly in compact designs.
Innovation Solution
A vehicle lighting system comprising a first light guide that redirects light from one flow direction to another, combined with a second light guide, featuring a specific angular relationship between light input and output surfaces and a light reflection surface with grooves, ensuring even light distribution and aesthetic appeal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a compact design with angular configuration is used, then aesthetic appearance and space efficiency are improved, but achieving even light distribution becomes more difficult
Solution Approach 1:
The light guide is divided into multiple sections with different optical functions: a first light guide section for light input and initial distribution, and a second light guide section with angular configuration for final emission. This segmentation allows each section to be optimized for its specific function, achieving both compact angular design and even light distribution.
Solution Approach 2:
A reflection surface is introduced as an intermediary element between the light source and the angular light guide configuration. This reflection surface redirects light at specific angles to ensure uniform illumination across the angular structure, solving the challenge of achieving even light distribution in a compact angular design.
2Volume of moving object
If light guides are used to achieve compact design, then space efficiency is improved, but light pattern uniformity deteriorates
Solution Approach 1:
Different regions of the light guide system are given different optical properties. The first light guide section has optimization for light input and initial distribution, while the second light guide section has specific angular geometry and surface treatments optimized for uniform emission. This local quality differentiation maintains light pattern uniformity within the compact overall design.
3Shape
If non-planar light emitting surface is used, then aesthetic appearance and vehicle identity are improved, but achieving even light distribution from different angles becomes more difficult
Solution Approach 1:
The solution transitions from a simple planar light emitting surface to a multi-dimensional angular configuration with surfaces at different orientations. By carefully designing the angular relationships between different emitting surfaces and using reflection surfaces to control light paths, the system achieves uniform light distribution from multiple viewing angles while maintaining the aesthetic non-planar form.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system achieves a compact, aesthetically pleasing design with uniform light distribution across different angles, meeting safety and aesthetic demands by efficiently redirecting light through the angular configuration and reflection surfaces.
Implementation Method 1
A light reflection surface is arranged for internally reflecting the incident light from the first light input surface toward the first light output surface
Data Source
AI summary
A vehicle lighting system includes a light source, a first light guide, and a second light guide. The light source is arranged to emit light into the first light guide, which emits incident light from the light source into the second light guide. The second light guide is arranged to emit incident light from the first light guide. The second light guide has a light input surface arranged to receive the incident light from the first light guide, and a light output surface arranged to emit the light received through the second light input surface. The light output surface comprises a first light emitting surface section in a first plane and a second light emitting surface section in a second plane, wherein the first plane and the second plane are arranged at a first angle in relation to each other.