Aircraft Seat Literature Pocket With Integrated LED Reading Light
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Solution Overview
Problem
Aircraft passenger seats with literature pockets positioned below the tray table can be hard to access, especially when the seat back is reclined, and existing overhead lighting is inefficient, generating heat and requiring frequent replacements.
Innovation Solution
A light fixture integrated into the seat back, featuring a vertical retention bar with LED lighting elements that extend from the lateral bar above a stowed tray table, providing adjustable and energy-efficient lighting for reading and tray table use by aft-seated passengers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If literature pockets are positioned below the tray table, then they can hold reading materials, but they become hard to access when the seat back is reclined
Solution Approach 1:
The patent repositions the literature pocket from a horizontal orientation below the tray table to a vertical orientation along the lateral retention bar. This dimensional change allows the pocket to remain accessible from the side even when the seat back is reclined, solving the accessibility problem while maintaining the tray table's full range of motion.
2Illumination intensity
If incandescent halogen lights are used for cabin lighting, then they provide sufficient illumination, but they generate significant heat and consume large amounts of energy
Solution Approach 1:
The patent replaces incandescent halogen lighting with LED lighting elements. This substitution changes the fundamental operating parameters of the lighting system, achieving the same illumination intensity while dramatically reducing energy consumption and heat generation, thereby resolving the contradiction between lighting performance and energy efficiency.
3Illumination intensity
If incandescent halogen lights are used, then they provide adequate lighting, but they are prone to burnout and require frequent replacement
Solution Approach 1:
The patent substitutes LED technology for incandescent halogen bulbs, fundamentally changing the operational parameters including service life. LEDs provide equivalent or superior illumination while offering dramatically extended operational life without burnout, thereby resolving the contradiction between lighting performance and reliability.
4Reliability
If a vertical retention bar is added to the literature pocket, then it improves content retention when the tray table is deployed, but it increases device complexity
Solution Approach 1:
The patent integrates the vertical retention bar as part of the lateral retention bar assembly, making it a multi-functional component that serves both as a structural support for the tray table and as a retention mechanism for literature pocket contents. This approach improves content retention while minimizing the increase in device complexity by reusing existing structural elements.
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 enhances accessibility to literature pockets and provides efficient, long-lasting lighting that reduces energy consumption and heat generation, improving passenger comfort and reducing maintenance needs.
Implementation Method 1
Light emitting diode lighting elements generate far less heat, consume less electricity and have an extremely long service life
Data Source
AI summary
A passenger seat that includes a seat bottom and a seat back having a literature pocket extending across a width of the seat back above a stowed aircraft passenger tray table. A light fixture powered by an electrical circuit is mounted on the literature pocket and adapted to direct light into a space directly aft of the seat back for use by an aft-seated passenger.