Movable Optical Diffuser for Dynamic LED Pixel Lighting
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Solution Overview
Problem
Current LED pixel devices rely heavily on static optical diffusers, limiting dynamic visual effects and requiring physical changes during shows to alter appearances, which can be disruptive.
Innovation Solution
A configurable LED pixel device with a movable optical diffuser and actuator system, allowing for dynamic adjustment of the diffusing degree by moving the diffuser relative to the LED pixels, enabling seamless changes in visual effects without disrupting the show.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a static optical diffuser is used to cover LED pixels, then the LED pixel device provides a stable and simple structure, but the visual effects are limited and cannot be changed dynamically during performances
Solution Approach 1:
The patent applies the dynamics principle by making the optical diffuser movable relative to the LED pixels through an actuator mechanism. This allows the diffuser to dynamically adjust its position and the degree of light diffusion during performances, enabling multiple visual effects (such as focused, diffused, and gradient effects) without requiring multiple static diffusers or complex mechanical reconfiguration systems.
2Adaptability or versatility
If physical changes are made to alter the appearance of LED pixel devices during shows, then new visual effects can be achieved, but the show is disrupted and time is lost
Solution Approach 1:
The movable diffuser system enables dynamic adjustment of visual effects during performances without requiring physical intervention. The actuator-controlled diffuser can transition between different positions and diffusion states seamlessly, allowing visual effect changes to occur during the show without stopping or disrupting the performance timeline.
Solution Approach 2:
The system employs automated actuator mechanisms that independently control the diffuser position based on pre-programmed sequences or real-time control signals. This self-service capability eliminates the need for manual physical changes during shows, allowing the system to autonomously transition between visual effects while the performance continues uninterrupted.
3Adaptability or versatility
If multiple diffusers with different optical properties are used to achieve various visual effects, then the adaptability is improved, but the device complexity and number of components increase
Solution Approach 1:
Instead of using multiple static diffusers with different optical properties, the patent employs a single movable diffuser that achieves different optical effects through position variation. By controlling the diffuser's distance from the LED pixels and its relative position, the system can produce focused beams, diffused lighting, gradient effects, and other visual variations, thereby reducing the component count while maintaining effect diversity.
Solution Approach 2:
The single movable diffuser is designed to perform multiple functions by varying its position. The same physical diffuser component can create different optical effects (focused, diffused, gradient, patterned) depending on its location relative to the LED pixels, making it a universal element that replaces what would otherwise require multiple specialized diffusers.
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 creation of new video effects and the ability to change the diffusing degree during performances, providing a homogenous lighting surface with enhanced visual effects and flexibility in content delivery.
Implementation Method 1
a number of individual controllable LED pixels (105) arranged in an array... an optical diffuser (109) arranged in front of at least a part of the LED pixels... The optical diffuser receives light from the LED pixels and diffuses the received light
Data Source
Figure 1a~1b
Figure 1c~1d
Figure 1e
AI summary
The present invention relates to a LED pixel device comprising: • a plurality of individual controllable LED pixels arranged in an array; • a LED pixel controller adapted to control said number of individual controllable LED pixels; • an optical diffuser arranged in front of at least a part of said LED pixels, said optical diffuser receive light from said LED pixels and diffuses the received light; • at least one diffuser actuator adapted to moved said LED pixels and said optical diffuser in relation to each other, • diffuser controller adapted to control the diffuser actuator; wherein the optical diffuser and the LED pixels can be moved between a non- mixing position and a mixing position, where in said non-mixing position the light emitted by the LED pixels are separated when hitting the optical diffuser and where in the mixing position the light emitted by said LED pixels are at least partial overlapping when hitting said optical diffuser. The present invention relates also to an optical diffuse mountable at a LED pixel device and movable in relation the LED pixel device.