Vehicle Headlight LED Segmentation for Adaptive Lighting
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Solution Overview
Problem
Existing vehicle headlight technologies using LED light sources have limited variability in light distribution due to shared optics units, requiring increased space for separate optics units to generate different light distributions, and struggle to dynamically adjust lighting for cornering and glare control.
Innovation Solution
Assigning different optics units with unique imaging characteristics to groups of LED light sources, allowing for combination and superimposition of light distributions to generate various beam patterns, and incorporating a control unit with sensor feedback for dynamic adjustment and glare management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate optics units are assigned to each LED light source to generate different light distributions, then light distribution variability is improved, but the space required increases significantly
Solution Approach 1:
The patent segments the LED light sources into multiple groups (first group, second group, third group) where each group is assigned a dedicated optics unit with specific imaging characteristics. This segmentation allows different light distributions to be generated by activating different groups, achieving light distribution variability without requiring every individual LED to have its own optics unit, thus reducing overall space requirements.
Solution Approach 2:
The patent implements multi-functionality by designing the headlight system where a limited number of optics units can generate multiple different light distributions through selective activation of LED groups. The same optics unit can work with different LED groups to produce various light patterns (low beam, high beam, cornering light, marking light), making the optics units universal and reducing the total number of optics units needed.
2Area of stationary object
If a single common converging lens is used for all LED light sources, then space requirements are reduced, but light distribution variability is limited
Solution Approach 1:
The patent applies local quality by assigning different imaging characteristics to different optics units corresponding to different LED groups. Each optics unit is optimized for specific lighting functions (e.g., asymmetrical low-beam, symmetrical wide distribution, freeway light), allowing locally tailored light distributions rather than a uniform approach, thereby achieving variability while maintaining compact design.
3Adaptability or versatility
If LED light sources are arranged in groups with different optics units to generate various light distributions, then lighting adaptability is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamics through the control unit that can dynamically activate different combinations of LED groups and optics units based on driving conditions. The system can switch between various light distributions (low beam, high beam, cornering light, marking light, freeway light) in real-time, providing adaptive lighting that responds to changing environmental conditions while managing complexity through intelligent control rather than hardware redundancy.
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
Enables the generation of multiple light distributions (low beam, high beam, cornering light, etc.) with reduced space requirements and improved lighting adaptability, including dynamic shifting and glare-free illumination for enhanced safety.
Implementation Method 1
A headlight for vehicles has a first group (1) of LED light sources (2) and a second group (3) of LED light sources (4)
Implementation Method 2
The first optics unit (5) has a first imaging characteristic, so that the light emitted by the LED light sources (2) of the first group (1) is imaged essentially above a horizontal H in the form of a relatively large light spot (2')
Data Source
Figure 1~2
Figure 3a~3c
Figure 4
AI summary
The invention relates to a headlight for vehicles, comprising a plurality of LED light sources that are combined into a joint light-emitting area. An optical unit is assigned to at least one LED light source in order to partially generate a predefined light distribution. Individual or several LED light sources can be switched on or off such that the light distribution can be modified. A first optical unit having first imaging characteristics is mounted upstream from a first group of LED light sources while a second optical unit having second imaging characteristics is mounted upstream from a second group of LED light sources such that a number of light spots having different sizes can be generated in the traffic space by alternatively switching on and off and/or dimming the LED light sources of the first group of LED light sources or the second group of LED light sources.