LED Light Source Replacement in Airfield Lighting Fixtures
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Solution Overview
Problem
Current methods for updating airfield lighting systems to use LED light sources require complete replacement of existing halogen or filament light fixtures, which is costly and difficult.
Innovation Solution
Updating airfield lighting systems by replacing only the light source within existing fixtures with LED light sources, without modifying any other elements or the power system, allowing for compatibility with existing mechanical and optical assemblies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complete replacement of existing halogen or filament light fixtures is performed, then LED light sources can be used in airfield lighting systems, but the updating process becomes difficult and expensive
Solution Approach 1:
The patent segments the light fixture into replaceable modular components, specifically the light source module that can be independently replaced. This allows the LED light source to be installed by simply replacing the light source module while keeping the existing fixture housing, optical assembly, and mounting structure, thereby reducing updating cost and difficulty while achieving LED compatibility
Solution Approach 2:
The patent designs the light source module with universal mounting interfaces and electrical connections that are compatible with existing fixture structures. The standardized module can be installed in various fixture types without modifying the overall fixture design, enabling LED replacement across different airfield lighting applications while maintaining system integrity
2Adaptability or versatility
If complete replacement of light fixtures is performed, then LED light sources can be installed, but the system becomes more complex and costly
Solution Approach 1:
By segmenting the light source as a separate replaceable module from the fixture housing and optical components, the patent enables LED integration without requiring replacement of the entire fixture assembly. This modular approach maintains adaptability for LED installation while minimizing the complexity of the replacement process
Solution Approach 2:
Instead of replacing the entire fixture to accommodate LED light sources, the patent inverts the approach by designing the LED light source module to fit into existing fixture structures. This reversal of the replacement strategy reduces system complexity while achieving LED adaptability
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 makes the transition to LED light sources cheaper and easier, maintaining compliance with aviation standards while reducing operational costs and maintaining system integrity.
Implementation Method 1
Light emitting diode (LED) light sources, however, can be cheaper to operate and/or maintain than halogen and filament light sources
Data Source
AI summary
Methods and systems for updating an airfield lighting system with an LED light source are described herein. One method includes removing a light source from an existing light fixture of an airfield lighting system, wherein the removed light source is not a light emitting diode (LED) light source, and replacing the removed light source with an LED light source in the existing light fixture without modifying or replacing any other element of the existing light fixture.