LED Flame Simulation Light Engine with Segmented Control
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Solution Overview
Problem
Current lighting technologies fail to effectively simulate the appearance and dynamics of a flame, particularly in terms of intensity, color, and movement, which are crucial for realistic visual effects.
Innovation Solution
A lighting device comprising a housing with a shroud and a base, featuring a plurality of LEDs controlled by a circuit that uses fuel values and actuation values to simulate a flame by adjusting the brightness, color, and flickering patterns of LEDs arranged in a specific pattern, with the control circuit determining actuation values based on distances and fuel values to mimic the appearance and movement of a flame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional lighting technologies are used, then the lighting device is simple in structure, but it fails to simulate the appearance and dynamics of a flame effectively
Solution Approach 1:
The lighting device segments the flame simulation into multiple LED groupings (first, second, third groupings) positioned at different heights, each controlled independently with specific actuation values. This segmentation allows realistic simulation of flame dynamics while maintaining manageable control through structured grouping
Solution Approach 2:
The control circuit dynamically adjusts actuation values for different LED groupings based on simulated fuel values, creating time-dependent lighting patterns that mimic flame behavior. The system transitions from static lighting to dynamic flame-like simulation through controlled temporal variations in LED activation
2Illumination intensity
If multiple LED groupings with different actuation values are used, then the flame simulation realism is improved, but the control circuit complexity increases
Solution Approach 1:
Different LED groupings are assigned different actuation values (A1, A2, A3 for first grouping; B1, B2 for second grouping; C1 for third grouping) to create local variations in light intensity and color. This local quality approach enables realistic flame simulation with varied brightness and color temperatures at different heights without requiring overly complex control logic
3Adaptability or versatility
If time-dependent actuation values are applied to simulate flame dynamics, then the visual realism is enhanced, but the control complexity and programming requirements increase
Solution Approach 1:
The control circuit implements periodic action by applying time-dependent actuation values at specific time points (T1, T2, T3) to different LED groupings. This creates rhythmic lighting patterns that simulate natural flame flickering and movement, providing adaptability for various flame conditions through structured temporal control sequences
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 achieves a highly realistic simulation of a flame, including intensity, color, and movement, providing a visually appealing and dynamic lighting effect that mimics real flames effectively.
Implementation Method 1
A plurality of LEDs is encased in the shroud for emitting light through the emission area
Data Source
AI summary
A system and method for lighting effects, including simulating a flame, a spark, or a perpetual middle, is disclosed. One or multiple three dimensional substrates include one or multiple arrays of light sources, such as LED, mounted on or into them. A control circuit can actuate the light sources in a manner to simulate different light effects including rising and contracting sparks within a flame and a center of the flame whose properties adjust to sparks traveling through and above it. The control circuit can further actuate the light sources to simulate a real flame effect by combing a simulated spark and a simulated perpetual middle. This system can include a light engine in a light fixture such as an architectural fixture.