LED Street Lighting Module Orientation Optimization
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Solution Overview
Problem
Existing LED-based street lighting technologies are limited in their ability to achieve optimal light distribution, as they primarily provide 2D or restricted 3D light distribution, failing to efficiently direct light to high angles and adapt to varying environmental and usage conditions.
Innovation Solution
The method involves selecting specific LED light sources and secondary optics, optimizing their orientations, and using software-assisted calculations to achieve desired light distributions, represented using C-γ coordinates, intensity tables, polar diagrams, and other photometric variables, and implementing these using flexible print boards or modular LED-modules with heat management and adjustable orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional LED lighting devices are used, then the device complexity is low, but the light distribution capability is limited to 2D or restricted 3D patterns
Solution Approach 1:
The lighting device is divided into multiple independent LED modules, each capable of being individually oriented and controlled. This segmentation allows each module to contribute to different parts of the light distribution pattern, enabling complex 3D lighting patterns while keeping individual module complexity low
Solution Approach 2:
The patent transitions from traditional 2D light distribution to 3D light distribution by orienting LED modules in multiple spatial dimensions. The modules can be angled to direct light upward, downward, and sideways, creating a volumetric light distribution pattern that adds a third dimension to traditional lighting
2Adaptability or versatility
If LED light sources are oriented in fixed directions, then the manufacturing precision is high, but the adaptability to varying environmental conditions is low
Solution Approach 1:
The LED modules are designed with adjustable orientation mechanisms that allow them to be dynamically positioned at different angles. This dynamic capability enables the lighting device to adapt to varying environmental conditions such as different mounting locations, weather conditions, and lighting requirements while maintaining precise control over light direction
Solution Approach 2:
The system allows changing the orientation parameters (angles) of LED modules to optimize performance under different conditions. By adjusting parameters such as tilt angle and azimuth angle, the device can adapt to different environmental scenarios while maintaining manufacturing precision through standardized adjustment mechanisms
3Productivity
If software-assisted calculations are used to optimize light distribution, then the performance optimization is improved, but the device complexity increases
Solution Approach 1:
Software-assisted calculations are performed during the design and configuration phase to determine optimal module orientations and configurations before physical installation. This preliminary optimization allows the actual deployment to be simpler and faster, as the complex calculations are completed in advance during the design phase rather than during installation or operation
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 enables the creation of optimized, adaptable, and efficient LED-based street lighting systems that can achieve complex light distribution patterns, improving performance and flexibility in response to environmental and usage changes.
Implementation Method 1
The invention relates to the emerging application of Light Emitting Diodes (LED's) for lighting purposes
Implementation Method 2
secondary optical means (such as lenses, etc.) of different types
Implementation Method 3
secondary optical means (such as lenses, etc.) of different types
Data Source
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AI summary
The invention relates to methods for optimising the performance of, for manufacturing and/or for controlling (street) lighting devices involving multiple LED-light sources within a common frame, in which specific LED-light sources are selected from a plurality of types of LED-light sources, specific secondary optics are selected from a plurality of types of secondary optics, for each selected LED light source, and specific orientations are selected for each of those LED-light sources and/or secondary optics, variables representing the light distribution in function of direction coordinates are associated to each LED light source and its secondary optics, and simulations of cumulative variables for multiple combinations of selected LED-light sources, selected secondary optics and selected orientations, are compared, using software assisted calculations, with selected global light distributions, so as to designate combinations of selected LED-light sources, selected secondary optics and selected orientations showing an optimal fit with said selected global light distributions, as well as to street lighting apparatus implementing these methods.