Adjustable Illumination Units for Homogeneous Crash Test Lighting
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Solution Overview
Problem
Current lighting systems in crash test facilities face challenges in achieving homogeneous and gap-free illumination of motor vehicles during high-speed collisions, as the existing lighting units struggle to adjust their beam directions accurately to ensure complete coverage without overlaps or gaps.
Innovation Solution
The proposed solution involves a lighting device comprising multiple illumination units with light sources and laser beam sources, where actuator means adjust the orientation of each unit based on detected laser beam directions to ensure that the radiation beams from adjacent units overlap seamlessly on a projection surface, allowing for precise alignment and homogeneous illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional lighting units are used with fixed beam directions, then the device complexity is low, but the illumination homogeneity and gap-free coverage deteriorate
Solution Approach 1:
The patent applies dynamics by making the lighting units adjustable in orientation. Each lighting unit can be rotated and tilted to change its beam direction dynamically, allowing the system to adapt the illumination pattern to achieve homogeneous and gap-free coverage of the motor vehicle during crash tests.
Solution Approach 2:
The patent divides the illumination system into multiple independent lighting units, each equipped with its own actuator means for orientation adjustment. This segmentation allows individual units to be precisely positioned to cover specific areas, collectively achieving homogeneous illumination without gaps.
2Manufacturing precision
If lighting units are manually adjusted, then the ease of operation is high, but the manufacturing precision and beam alignment deteriorate
Solution Approach 1:
The patent employs feedback mechanisms where the orientation of each lighting unit is detected (using sensors or encoders on the actuator means) and this information is used to control the actuator means, which in turn adjusts the lighting unit's orientation. This closed-loop feedback system ensures precise beam alignment while reducing manual intervention.
Solution Approach 2:
The patent replaces manual mechanical adjustment with automated actuator means (such as motors or positioners) that can precisely control the orientation of each lighting unit. This substitution of manual mechanical operation with automated mechanical systems achieves high alignment precision while maintaining operational control.
3Illumination intensity
If the number of lighting units is increased to improve coverage, then the illumination homogeneity improves, but the device complexity and cost increase
Solution Approach 1:
By making each lighting unit dynamically adjustable in orientation, the patent maximizes the utilization of each unit's coverage area. This allows fewer units to achieve the same effective coverage as more fixed units would provide, reducing system complexity while maintaining illumination homogeneity.
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 approach ensures that the radiation beams from multiple illumination units are adjusted to provide comprehensive, gap-free illumination of the motor vehicle, enhancing the precision of collision analysis by ensuring uniform and intensive lighting during crash tests.
Implementation Method 1
at least one laser beam source (21.2) for emitting at least one laser beam (21.21)
Data Source
AI summary
The illumination device comprises a plurality of illumination units (21), each illumination unit (21) comprising a light source (21.1) for emitting a radiation beam (21.1A) and at least one laser beam source (21.2) for emitting at least one laser beam (21.2A), and a plurality of actuator means (22), wherein each actuator means (22) is connected to an illumination unit (21) and is adapted to change an orientation of the illumination unit (21) based on a detected beam direction of the laser beam (21.2A).