LED Light Persistence of Vision Spin Mechanism
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Solution Overview
Problem
Current LED light devices lack the ability to create dynamic and eye-catching light patterns that utilize the persistence of vision effect, which requires precise control over LED on/off cycles to create continuous images beyond human eye response time, while also being power-efficient and cost-effective.
Innovation Solution
The LED light device incorporates a spin mechanism with a predetermined speed, controlled by a circuit, switch, sensor, and timer, allowing for rapid on/off cycles to create persistence of vision effects, such as message, time, and color displays, and includes a sealed unit with interchangeable shades for enhanced appearance, and uses voltage boosting components for battery-powered units to extend battery life and reduce costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If LED light device uses rapid on/off cycles to create persistence of vision effects, then dynamic light patterns and visual effects are improved, but power consumption increases
Solution Approach 1:
The patent implements periodic on/off cycles of LED arrays at frequencies above human eye perception threshold (persistence of vision effect). The controller systematically switches between different LED array combinations in sequential time intervals, creating dynamic visual patterns while exploiting the human visual system's inability to detect individual rapid transitions. This periodic operation enables rich visual effects while maintaining power efficiency through duty cycle control.
Solution Approach 2:
The system dynamically adjusts which LED arrays are active at different time intervals during rotation. By selectively activating specific LED arrays in sequence as the rotating substrate passes different angular positions, the system creates the illusion of continuous complex patterns. This dynamic switching allows the same physical LED arrangement to generate multiple different visual patterns without requiring all LEDs to be continuously illuminated.
2Stability of the object's composition
If LED light device creates continuous light patterns through persistence of vision, then visual stability is improved, but requires precise timing control which increases device complexity
Solution Approach 1:
The patent combines multiple control functions into a single integrated controller that simultaneously manages LED array switching, rotation speed control, and timing synchronization. The controller unit consolidates what would otherwise be separate control systems, reducing overall device complexity while maintaining precise timing control necessary for persistence of vision effects. The sealed unit further integrates electrical components, circuit board, and housing into a single modular assembly.
Solution Approach 2:
The system uses the rotation of the substrate itself as a timing reference for LED activation. By synchronizing LED on/off cycles with the rotational position of the substrate, the system creates self-regulating visual patterns without requiring external timing signals or complex feedback mechanisms. The mechanical rotation provides a natural clock signal that simplifies the control architecture.
3Adaptability or versatility
If LED light device uses interchangeable shades for diverse designs, then adaptability is improved, but manufacturing and certification complexity increases
Solution Approach 1:
The patent divides the light device into separable modules: a certified sealed unit containing all electrical components and interchangeable external shades. This segmentation allows the core electrical assembly to be manufactured and safety-certified once as a standardized unit, while shades can be produced separately in various designs, materials, and colors. Users can interchange shades without affecting the certified components, greatly simplifying manufacturing and certification processes.
Solution Approach 2:
The sealed unit is designed as a universal base that can accommodate multiple different shade types and configurations. The standardized mounting interface and electrical connections allow a single certified unit to support diverse aesthetic variations through interchangeable shades, eliminating the need to certify multiple complete device variants. This universal design enables product families with varied appearances from a single core platform.
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 enables the creation of continuous light patterns that appear steady to the human eye, significantly reducing power consumption and extending battery life, while allowing for cost-effective production and diverse design options without additional safety certifications for added shades.
Implementation Method 1
The current invention applies the persistence of vision effect to a desktop or outlet plug-in LED light device to cause LED array light effects to be seen by viewers as light patterns
Data Source
AI summary
An LED light device with special effects utilizes persistence of vision theory to cause an LED(s) or LED array to change faster than the human eye response time of 1/16 to 1/24 second to display a special message, time, drawing, light patterns, or color changes. In addition, the light device may be provided with a sealed-unit arranged to receive a variety of eye-catching shades.