Integrated Cabin Wall Light With Personal Reading Units
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Solution Overview
Problem
Aircraft passenger cabin lighting systems are complex and heavy due to the integration of general cabin lights and individually switchable reading lights within passenger service units, increasing weight, complexity, and costs without optimizing illumination.
Innovation Solution
An elongated aircraft passenger cabin light with a cabin wall illumination assembly and personal reading light units integrated into a single housing, providing general cabin illumination and personal reading light functionality, reducing the need for separate reading lights in service units, and utilizing LEDs and reflectors for efficient lighting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If passenger reading lights are installed in passenger service units, then personal reading light illumination is provided, but weight and complexity of passenger service units increase
Solution Approach 1:
The patent combines general cabin illumination and personal reading light functions into a single integrated lighting assembly mounted on the cabin wall. This merging eliminates the need for separate reading light installations in passenger service units, thereby reducing their weight while maintaining both illumination functions.
Solution Approach 2:
The integrated lighting assembly performs multiple functions: it provides general cabin illumination through its elongated structure and delivers personal reading light illumination through individually controllable light units. This multi-functionality consolidates what were previously separate systems into one universal solution.
2Illumination intensity
If passenger reading lights are installed in passenger service units, then personal reading light illumination is provided, but complexity of passenger service units increases
Solution Approach 1:
By merging general cabin lighting and personal reading lights into a single integrated assembly, the patent reduces the number of separate components and installations required in passenger service units, thereby simplifying their overall complexity.
Solution Approach 2:
The integrated lighting assembly is designed as a modular unit with multiple individually controllable light units that can be selectively activated. This segmentation allows for simplified control and maintenance while reducing the complexity burden on passenger service units.
3Adaptability or versatility
If separate reading lights are installed in passenger service units, then personal reading light functionality is provided, but costs increase
Solution Approach 1:
The patent combines multiple lighting functions into a single manufactured assembly, which reduces the total number of components that need to be produced and installed separately. This consolidation lowers manufacturing costs while preserving full personal reading light functionality through individually controllable light units.
4Illumination intensity
If traditional passenger service units with integrated reading lights are used, then illumination is provided, but adaptability to different seat configurations is reduced
Solution Approach 1:
The integrated lighting assembly contains multiple individually controllable light units that can be selectively activated based on seat configuration. This segmentation enables flexible adaptation to different seating arrangements without requiring physical reconfiguration of the lighting system.
Solution Approach 2:
The lighting system incorporates controllable light units that can be dynamically activated or deactivated based on operational requirements and seat configurations, providing adaptability without physical reconfiguration.
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 reduces the weight and complexity of passenger service units while maintaining effective illumination, allowing for flexible and efficient lighting configurations without the need for separate reading lights, thus lowering costs and enhancing adaptability to different seat configurations.
Implementation Method 1
The wall illumination light sources are LEDs or comprise LEDs
Implementation Method 2
the cabin wall illumination assembly comprises at least one reflector, which extends along the longitudinal direction of the aircraft passenger cabin light. The reflector may be configured for shaping the light output, which is emitted by the cabin wall illumination assembly, in a desired manner. The reflector may in particular be configured for directing the light output into a desired direction, more particularly for directing the light output towards the wall of the passenger cabin.
Data Source
AI summary
An aircraft passenger cabin light. The light has: an elongated shape having a longitudinal direction (L) comprises: a cabin wall illumination assembly, which extends along the longitudinal direction (L) of the aircraft passenger cabin light and which is configured for illuminating a portion of a wall of an aircraft passenger cabin; and a plurality of personal reading light units for providing personal reading light illumination to passengers. The plurality of personal reading light units are arranged in an array extending along the longitudinal direction (L) of the aircraft passenger cabin light Said array is arranged along the cabin wall illumination assembly.