Lighting System Edge Steepness Control for Smooth Motion
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Solution Overview
Problem
Existing lighting systems struggle to achieve smooth movement of light effects with sharply defined boundaries, as they typically require discrete steps between lighting elements, leading to fragmented motion and reduced resolution.
Innovation Solution
A lighting system with a controller that reduces the edge steepness of luminance distribution during motion, allowing for a more gradual transition by spreading the intensity fall-off over multiple elements, and skewing the luminance distribution to create the illusion of continuous motion without repositioning the light effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the edge steepness of luminance distribution is maintained during migration, then the light effect boundaries remain sharp and well-defined, but the motion appears fragmented and discontinuous due to discrete element-to-element jumps
Solution Approach 1:
The system dynamically adjusts the edge steepness parameter based on the operational state: during migration, the edge steepness is reduced to enable smooth transitions between elements, while during static display, the edge steepness is increased to achieve sharp, well-defined boundaries. This dynamic adaptation resolves the contradiction between motion smoothness and edge sharpness.
Solution Approach 2:
The patent changes the luminance distribution parameters during migration by reducing the edge steepness, allowing the light effect to transition smoothly across multiple elements rather than jumping discretely. This parameter modification enables continuous motion appearance while maintaining the ability to restore sharp edges when the light effect is stationary.
2Area of stationary object
If the array pitch is increased to cover larger area, then the lighting system can illuminate more space, but the motion resolution decreases and motion appears more fragmented
Solution Approach 1:
The system uses dynamic edge steepness adjustment to compensate for the fixed array pitch. By reducing edge steepness during migration, the system effectively increases the transition zone between elements, allowing smoother motion appearance even with larger pitch values. This dynamic parameter change decouples the relationship between pitch and motion resolution.
3Device complexity
If discrete element-to-element jumps are used for migration, then the control is simple and direct, but the motion appears fragmented and the maximal resolution is constrained by the array pitch
Solution Approach 1:
The patent modifies the luminance distribution parameters by reducing edge steepness during migration, which transforms the discrete element-to-element jumps into a smoother transition. This parameter change maintains the simplicity of element-by-element control while significantly improving the visual smoothness of motion, effectively resolving the contradiction between control simplicity and motion smoothness.
Data Source
AI summary
The invention provides a lighting system (30) comprising an array (32) of lighting elements (34) being controllable to create a configurable light effect having a configurable luminance distribution. A controller (38) is configured to effect migration of a light effect from a first position (21) to a second position (22) wherein an edge of the light effect is transformed for the duration of the migration so as to improve apparent smoothness of the movement.