Aircraft Cabin LED Spectral Control for Adaptive Lighting Effects
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Solution Overview
Problem
Aircraft lighting systems lack the ability to dynamically adjust lighting outputs based on various parameters to create desired effects, such as mood and functionality, due to limitations in existing LED technology.
Innovation Solution
A lighting system comprising multiple LEDs and a controller that transitions between different spectral weighting modes to optimize specific variables within distinct domains, such as chromacity coordinates and color temperature, allowing for customizable lighting effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple spectral weighting modes are implemented to optimize different variables (chromaticity coordinates, color temperature, brightness), then lighting system adaptability and versatility are improved, but device complexity increases due to multiple LEDs and control modes
Solution Approach 1:
The lighting system divides the spectrum into multiple discrete wavelength channels using individual LEDs (e.g., 450nm blue, 530nm green, 630nm red). Each LED operates as an independent segment that can be controlled separately, enabling the system to achieve multiple spectral weighting modes by adjusting the intensity of each segment. This segmentation allows optimization of different variables (chromaticity, color temperature, brightness) without requiring a completely different lighting system for each mode.
Solution Approach 2:
A single multi-wavelength LED system performs multiple functions that would traditionally require separate lighting systems. The same set of LEDs can be configured to optimize for chromaticity coordinates, color temperature, brightness, or other spectral parameters by adjusting the relative intensities of individual LEDs. This multi-functionality reduces the need for multiple specialized lighting systems while maintaining adaptability across different operational modes.
2Adaptability or versatility
If spectral weighting modes are used to create desired lighting effects, then lighting system versatility is improved, but power consumption increases due to multiple LEDs operating simultaneously
Solution Approach 1:
The system activates only the subset of LEDs necessary to achieve the desired spectral weighting mode rather than operating all LEDs at full capacity. For example, to achieve a specific color temperature optimization, only the LEDs whose wavelengths contribute most significantly to that optimization are activated at high intensity, while others operate at reduced intensity or remain off. This partial action reduces overall power consumption while maintaining the ability to achieve diverse lighting effects by selectively activating different LED combinations.
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
Enables dynamic and adaptive lighting solutions that enhance cabin ambiance, safety, and functionality by optimizing variables like color saturation, CRI, and brightness, improving passenger experience and operational efficiency.
Implementation Method 1
A lighting system may include a plurality of light emitting diodes (LEDs)
Implementation Method 2
Each LED in the plurality of LEDs may be configured to emit an electromagnetic radiation having a wavelength
Data Source
AI summary
A method may comprise: commanding, by a processor, a lighting system to generate a first desired effect in accordance with a first spectral weighting mode; determining, by the processor, a first optimized predetermined variable within a first predetermined domain to generate the desired effect based on the first spectral weighting mode; commanding, by the processor, the lighting system to transition from the first desired effect to a second desired effect, the second desired effect in accordance with a second spectral weighting mode; and determining by the processor, a second optimized predetermined variable within a second predetermined domain to generate the second desired effect based on the second spectral weighting mode, the first optimized predetermined variable being different from the second optimized predetermined variable.