Asymmetrical Optical Unit for Vehicle Headlight Resolution
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Solution Overview
Problem
Existing vehicle headlight technologies, such as matrix headlights, face challenges in achieving an optimal balance between light image resolution and width, particularly in providing high resolution in the center region while maintaining a wide light distribution in the edge regions, which is not efficiently addressed by current designs.
Innovation Solution
The optical unit incorporates a primary optical unit with asymmetrical coupling and decoupling surfaces, where edge-side coupling surfaces are widened compared to middle surfaces, allowing for an asymmetrical light distribution and optimized light image width to center resolution, achieved by using a radiation source matrix with LEDs arranged in a line and a secondary optical unit with convex coupling and decoupling surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If coupling surfaces are made uniform in size, then the manufacturing process is simplified, but the light image resolution in the center region and width in edge regions cannot be optimized simultaneously
Solution Approach 1:
The patent applies local quality by differentiating the coupling surfaces into three distinct types: first coupling surfaces at line ends with a first size, second coupling surfaces in the middle region with a second size, and third coupling surfaces at other line ends with a third size. This local differentiation allows each region to be optimized for its specific function - center resolution and edge width - while maintaining a systematic manufacturing approach.
Solution Approach 2:
The patent employs asymmetry by making the coupling surfaces non-uniform in size distribution along the line. The asymmetric arrangement of differently sized coupling surfaces creates the optimized light distribution pattern where the center region achieves high resolution through smaller coupling surfaces while edge regions achieve wide distribution through larger coupling surfaces.
2Area of stationary object
If the light distribution is widened to cover edge regions, then the overall light coverage is improved, but the resolution in the center region deteriorates
Solution Approach 1:
The patent resolves this contradiction by applying local quality through spatially differentiated coupling surfaces. Second coupling surfaces in the middle region with a second size provide high resolution for the center region, while first and third coupling surfaces at line ends with larger first and third sizes provide wide distribution for edge regions. Each local area is optimized for its specific requirement.
Solution Approach 2:
The patent segments the coupling surfaces into distinct functional groups along the line: end regions with larger coupling surfaces for wide distribution, and middle regions with smaller coupling surfaces for high resolution. This segmentation allows independent optimization of different spatial zones within the overall light distribution system.
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
This configuration enables a high-resolution light image in the center region with a wide light distribution in the edge regions, enhancing the overall light image quality while maintaining cost-effectiveness, and can be easily integrated into vehicle headlight systems.
Implementation Method 1
The optical unit has a plurality of coupling surfaces, which are arranged in at least one line, and at least one decoupling surface. At least one coupling surface, which is arranged at a line end of the line formed by the coupling surfaces arranged in at least one line, is widened when viewed in the direction of the at least one line.
Data Source
AI summary
In various embodiments, an optical unit for a radiation source matrix is provided. The optical unit may include a plurality of coupling surfaces, which are arranged in at least one line, and at least one decoupling surface. At least one coupling surface, which is arranged at a line end of the line formed by the coupling surfaces arranged in at least one line, is widened when viewed in the direction of the at least one line.