Airfield Lighting System with Dual Optical Units
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Solution Overview
Problem
Existing airfield lighting systems are not suitable for both well-defined light-exit direction and omnidirectional applications, limiting their flexibility and application in high-intensity airfield lighting scenarios.
Innovation Solution
A modular airfield lighting system with a compact design incorporating multiple light units, optical elements, and a dual-section heat sink that allows for adjustable heat dissipation, enabling both directional and omnidirectional light emission using high-power LEDs, with features like elevated second lighting elements and a moisture-proof design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a lighting system is designed for well-defined light-exit direction using optical elements, then directional lighting function is improved, but omnidirectional lighting capability deteriorates
Solution Approach 1:
The patent applies multi-functionality by integrating both directional and omnidirectional lighting capabilities into a single lighting system. The system includes first light units with first optical elements for directional lighting and second light units with second optical elements for omnidirectional lighting, allowing one system to serve multiple lighting functions simultaneously
Solution Approach 2:
The patent segments the lighting system into distinct functional modules: first light units with first optical elements for directional lighting, second light units with second optical elements for omnidirectional lighting, and a shared heat sink. This segmentation allows each component to be optimized for its specific function while maintaining overall system versatility
2Illumination intensity
If high-power LEDs are used to increase lighting intensity, then illumination intensity is improved, but heat generation increases
Solution Approach 1:
The patent merges the heat dissipation function for both first and second light units into a single shared heat sink. This consolidation reduces the overall number of components while maintaining effective heat management for high-power LEDs generating intense light output
3Volume of moving object
If multiple light units and optical elements are integrated into a compact design, then space utilization is improved, but assembly complexity increases
Solution Approach 1:
The patent segments the compact lighting system into modular components: first light units, second light units, and a shared heat sink with integrated mounting structures. This modular segmentation enables simplified assembly despite the compact integrated design, as each module can be independently assembled and then combined
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
The system provides high flexibility in airfield lighting applications by enabling both directional and omnidirectional lighting functions, efficient heat dissipation, and enhanced durability against environmental conditions, reducing size and assembly complexity while maintaining reliable operation.
Implementation Method 1
a heat sink for dissipating heat generated by the first lighting element
Implementation Method 2
The heat sink comprises a first heat sink section carrying the light unit and a second heat sink section carrying an electronic circuit
Data Source
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AI summary
The invention applies a high intensity airfield lighting system comprising a main body, a dome securable to the main body, wherein the dome is designed for light transmission and at least partially transparent, at least one light unit covered by the dome and comprising at least one first lighting element fixed to a carrier of the light unit, at least one first optical element designed to receive light from the first lighting element and to emit the light received into a main light-exit direction, and a support for the at least one first optical element and a heat sink for dissipating heat generated by the first lighting element, characterized in that at least one second lighting element and at least one second optical element are provided with the second optical element receiving the light of the second lighting element and emitting the light received at least semicircular within a light-exit plane.