Elongated Aircraft Cabin Light Layout for Lower Weight and Power
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Solution Overview
Problem
Conventional aircraft cabin lighting systems are not weight-efficient and power-efficient, often adding significant weight and requiring large amounts of electric power to illuminate the passenger cabin.
Innovation Solution
An elongated aircraft cabin light with a row arrangement of light modules extending horizontally along the cabin's longitudinal direction, featuring intermediate light modules for downward and lateral illumination, and end light modules for supplementary downward, lateral, and upward illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional aircraft cabin lighting systems are used, then the passenger cabin can be illuminated, but the system adds significant weight to the aircraft
Solution Approach 1:
The lighting system is divided into multiple independent light modules arranged in a row, where each module contains its own light source and optical elements. This segmentation allows for a lighter overall structure compared to conventional unified lighting systems, while still providing comprehensive cabin illumination through the distributed arrangement of modules along the cabin ceiling.
Solution Approach 2:
Each light module is designed to perform multiple functions: illuminating the floor through downward light output, illuminating cabin walls and overhead luggage bins through lateral light output, and the end modules additionally illuminate the ceiling through upward light output. This multi-functionality reduces the need for separate lighting systems for different cabin areas, thereby reducing overall weight.
2Illumination intensity
If conventional aircraft cabin lighting systems are used, then the passenger cabin can be illuminated, but the system requires large amounts of electric power
Solution Approach 1:
The lighting system is divided into multiple independent light modules arranged in a row, where each module contains its own light source and optical elements. This segmentation allows for a lighter overall structure compared to conventional unified lighting systems, while still providing comprehensive cabin illumination through the distributed arrangement of modules along the cabin ceiling.
Solution Approach 2:
Each light module is designed to perform multiple functions: illuminating the floor through downward light output, illuminating cabin walls and overhead luggage bins through lateral light output, and the end modules additionally illuminate the ceiling through upward light output. This multi-functionality reduces the need for separate lighting systems for different cabin areas, thereby reducing overall weight.
3Weight of moving object
If multiple light outputs are emitted from a single elongated light, then weight and power consumption are reduced, but the device complexity increases
Solution Approach 1:
The lighting system is divided into multiple independent light modules arranged in a row, where each module contains its own light source and optical elements. This segmentation allows for a lighter overall structure compared to conventional unified lighting systems, while still providing comprehensive cabin illumination through the distributed arrangement of modules along the cabin ceiling.
Solution Approach 2:
Each light module is designed to perform multiple functions: illuminating the floor through downward light output, illuminating cabin walls and overhead luggage bins through lateral light output, and the end modules additionally illuminate the ceiling through upward light output. This multi-functionality reduces the need for separate lighting systems for different cabin areas, thereby reducing overall weight.
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 solution allows for a more weight-efficient and power-efficient aircraft cabin lighting system by emitting multiple light outputs from a single elongated light, reducing the overall weight and power consumption of the lighting system.
Implementation Method 1
Each of the plurality of light modules comprises at least one light source, in particular at least one LED
Data Source
AI summary
An elongated aircraft cabin light for illuminating a passenger cabin of an aircraft from a ceiling of the passenger cabin comprises: a row arrangement of a plurality of light modules, extending along a longitudinal direction (L) of the elongated aircraft cabin light. Each of the plurality of light modules comprises at least one light source. The plurality of light modules include a plurality of intermediate light modules and, on at least one end of the row arrangement, an end light module. Each of the plurality of intermediate light modules is configured for emitting a downward light output and at least one lateral light output towards at least one lateral side.