Stadium Spotlight LED Cluster Light Distribution
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Solution Overview
Problem
Existing headlights with LED clusters require complex adjustments or individual optical components to achieve desired light distribution curves, which is inefficient and cumbersome for adapting to different lighting tasks and local conditions.
Innovation Solution
The headlight allows independent switching and dimming of LEDs within a cluster, using common optics for all LEDs, enabling flexible light distribution adjustments without changing optical components, and utilizing multiple clusters arranged at distances for enhanced luminosity and variation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different LDCs are achieved by using different optical components or movable optical systems, then the light distribution can be adapted to different lighting tasks, but the device complexity increases significantly
Solution Approach 1:
The invention divides the light source into multiple independently controllable LED elements within a cluster, where each LED can be switched on/off or dimmed individually. This segmentation allows different light distribution patterns to be achieved by selectively activating specific LEDs, eliminating the need for complex movable optical systems or multiple optical components.
Solution Approach 2:
The invention introduces dynamic control of LED brightness through independent dimming capabilities. By dynamically adjusting the intensity of individual LEDs within a cluster, the system can transform light distribution curves continuously without mechanical movement of optical components, resolving the contradiction between adaptability and complexity.
2Manufacturing precision
If optical components are adapted for individual LEDs or LED clusters, then precise light distribution is achieved, but the manufacturing complexity and cost increase
Solution Approach 1:
The invention makes a single optical component serve multiple functions by positioning it to work with multiple LEDs in a cluster. The optical component is designed to handle light from different LED positions and orientations, allowing one universal optical element to achieve precise light distribution for various lighting tasks without requiring custom-manufactured components for each LED.
Solution Approach 2:
By segmenting the light source into multiple LEDs with a universal optical component, the invention simplifies manufacturing. Instead of manufacturing different optical components for different applications, a single standardized optical component can be used with different LED configurations to achieve various light distribution patterns.
3Adaptability or versatility
If a complex adjustment mechanism is inserted within the spotlight, then light distribution can be adjusted, but the device complexity and maintenance requirements increase
Solution Approach 1:
The invention replaces mechanical adjustment mechanisms with electronic control of LED intensity. Instead of physically moving or adjusting optical components through mechanical means, the system uses electronic dimming control of individual LEDs to achieve light distribution adjustment, eliminating complex mechanical adjustment mechanisms and reducing maintenance requirements.
4Shape
If LEDs are arranged in symmetric patterns, then circular light distributions are achieved, but asymmetrical light distributions require additional complexity
Solution Approach 1:
The invention uses dynamic control of individual LED elements within the symmetric cluster to transform the light distribution from circular to asymmetrical patterns. By selectively dimming or switching off specific LEDs in the symmetric arrangement, the system can generate asymmetrical light distributions without changing the physical symmetric structure, maintaining manufacturing simplicity while achieving versatility.
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 solution simplifies the adaptation of light distribution to local conditions by allowing continuous transformation of light distribution curves without moving or changing optical components, offering high variation and increased luminosity through superimposed light from multiple clusters.
Implementation Method 1
particularly a lens with total internal reflection
Data Source
Figure 1~2
Figure 3a~3c
Figure 4~5
AI summary
The invention relates to a spotlight for stationary mounting in an interior space or exterior space, in particular a stadium spotlight, wherein the spotlight has at least one cluster comprising a plurality of LEDs, characterised in that individual LEDs in the cluster can be switched on and off and/or dimmed independently of at least some of the remaining LEDs in the cluster.