Multi-Source Light Fixture Spectral Control With Consistent Color
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Solution Overview
Problem
Existing light fixtures lack the ability to add functionalities such as scene-specific optimization, improved color rendering, and intriguing optical effects by independently controlling multiple light sources with unique colors and spectra.
Innovation Solution
A method and control device for a light fixture with multiple independently controllable light sources, allowing for varying spectral distributions while maintaining identical or similar colors through predefined settings, enabling scene-specific optimization and optical effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple light sources with unique colors are used to enable scene-specific optimization and improved color rendering, then the adaptability and functionality of the light fixture are improved, but the device complexity increases due to the need for independent control of multiple light sources
Solution Approach 1:
The light fixture is divided into multiple independent light sources, each with unique color characteristics. Each light source can be individually controlled to contribute to the overall emitted light, enabling scene-specific optimization without requiring complete redesign of the entire lighting system.
Solution Approach 2:
The control system dynamically adjusts the luminous flux of each individual light source based on predefined settings. This dynamic control allows the light fixture to adapt to different scenes and lighting requirements while maintaining a relatively simple hardware architecture.
2Illumination intensity
If the spectral distribution of emitted light is varied to improve color rendering and optical effects, then the quality of light output is improved, but the difficulty of controlling and maintaining consistent color increases
Solution Approach 1:
The system changes the spectral distribution parameters by adjusting the luminous flux of each light source according to predefined settings. Each setting represents a specific combination of light source intensities that produces a desired spectral distribution while maintaining color consistency through coordinated control of all light sources.
Solution Approach 2:
The light fixture is designed to perform multiple functions through a single integrated control system. The same control mechanism that adjusts spectral distribution also maintains color consistency, eliminating the need for separate control systems for each function.
3Ease of operation
If predefined settings are used to enable switching between different spectral distributions while maintaining similar colors, then the ease of operation is improved, but the device complexity increases due to the need for multiple predefined settings and control mechanisms
Solution Approach 1:
Multiple predefined settings are established in advance, each representing a specific configuration of light source luminous flux values. These presets are stored and can be quickly switched between without requiring real-time calculation or adjustment, simplifying the user interface and control logic.
Solution Approach 2:
The control mechanism merges the adjustment of multiple light sources into a single unified system. By coordinating the luminous flux of all light sources through a single control architecture, the system achieves complex spectral control without proportionally increasing the complexity of the control mechanism.
Data Source
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AI summary
There is presented a method (100) for controlling a light fixture (200) comprising unique color light sources with independently controllable luminous flux, wherein the method comprises controlling (104) a luminous flux of each of the light sources, wherein a spectral distribution of light emitted from the plurality of light sources upon being controlled according to settings within a plurality of setting is different between settings, and a color of light emitted from the plurality of light sources is similar or identical between settings. The invention may be advantageous for improved color rendering in case a certain color of emitted light is required, e.g., where a certain prop or costume is better illuminated with one setting compared to another setting, drawing attention to certain objects in a scene, e.g., by choosing a setting which makes a certain object stand out, and/or providing an intriguing optical effect, e.g., by shifting between settings, which makes certain objects appear to change color while others appear to keep same color.