Fluorescent LED Shoe Lighting With MEMS Motion-Controlled Sequences
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Solution Overview
Problem
Existing shoe light systems are limited by mechanical circuitry that allows only a single light sequence, require different voltages for various colors, and cannot measure movement beyond impact, leading to restricted design and functionality.
Innovation Solution
A system using a microelectromechanical systems (MEMS) sensor and integrated chip (IC) to provide diverse light sequences based on movement, combined with fluorescent LEDs that produce different colors using a single color LED and voltage, allowing for dynamic light displays and simultaneous illumination of multiple LEDs with similar power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different colored LEDs are used to provide multicolored display, then color variety is improved, but voltage requirements vary significantly causing design issues and unequal illumination
Solution Approach 1:
The patent uses a single color LED (typically blue or UV) and changes the optical parameters by introducing fluorescent materials with different emission characteristics. These fluorophores convert the LED's light wavelength to different visible colors, allowing multicolored display without changing the electrical parameters (voltage) of the LED itself.
Solution Approach 2:
Fluorescent materials serve as intermediary substances between the single color LED and the human eye. The fluorophores absorb the LED's emitted light and re-emit it at different wavelengths, effectively mediating the color transformation while keeping the electrical driving conditions uniform.
2Device complexity
If mechanical circuitry with fixed light sequence is used, then circuit simplicity is improved, but sequence versatility is limited to a single predetermined pattern
Solution Approach 1:
The patent replaces mechanical circuitry with electronic control systems, specifically microcontrollers or programmable logic devices. This substitution allows the light sequences to be controlled by software rather than hardwired mechanical connections, enabling multiple sequences to be stored and executed without changing the physical circuit structure.
Solution Approach 2:
The control system is designed to be universal, capable of executing multiple different light sequences through programming. A single circuit can perform various functions (different sequences, patterns, and timing) by loading different control algorithms, making the system multi-functional without requiring separate hardware for each sequence.
3Ease of operation
If impact switch with spring contact is used to start light sequence, then activation simplicity is improved, but movement measurement capability is limited to impact only
Solution Approach 1:
The patent replaces the mechanical impact switch with electronic sensors such as accelerometers, gyroscopes, or pressure sensors. These electronic devices can detect various types of movements (impact, acceleration, rotation, pressure) and convert them into electrical signals, providing much broader movement measurement capability while maintaining simple activation through threshold-based triggering.
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 customizable light displays on shoes responsive to various movements, overcoming the limitations of single sequence and voltage requirements, and providing a more versatile and dynamic lighting experience.
Implementation Method 1
A fluorescent light emitting diode (LED) that utilizes fluorescence to provide color
Data Source
AI summary
The invention involves a system and method for creating various light displays on a shoe or similar item. The system includes an IC chip that receives electrical signals from a MEMS chip or from multi-axis accelerometers to cause the IC chip to provide different light displays and sequences in response to the signals from the MEMS chip. The system also utilizes one or more LEDs that include a fluorescent to create different visible colors of light from a base LED having a single color which causes the fluorescent to illuminate.