Dynamic Lighting Color Control via Gamut Mapping
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Solution Overview
Problem
Combining multiple dynamic lighting fixtures from different vendors is complex due to varying light sources, color parameters, and color mixing systems, requiring time-consuming spectral distribution measurements and data handling, especially when ensuring consistent color output across systems.
Innovation Solution
A method and adapter that adjust the color of lighting fixtures to a target color by varying the intensity of light sources based on individual and combined color gamuts, allowing users to select target colors independently of the fixtures' systems and ensuring colors stay within the achievable gamut, using color parameters and a common color gamut generated from the fixtures' color maps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple dynamic lighting fixtures from different vendors are combined, then the lighting system becomes more versatile and capable of creating various illumination effects, but the system complexity increases significantly due to varying light sources, color parameters, and color mixing systems
Solution Approach 1:
The patent introduces a universal color control method that works across multiple lighting fixture types from different vendors. By using a common color gamut framework and standardized color parameter conversion, the system can control diverse lighting fixtures (LED, laser, xenon, etc.) through a single unified interface, eliminating the need for separate control systems for each fixture type.
Solution Approach 2:
The patent employs color gamut data as an intermediary between the control system and the lighting fixtures. This intermediary layer standardizes the communication by converting various fixture-specific color parameters into a common color gamut representation, allowing the control system to manage multiple vendors' fixtures without needing to understand each fixture's specific technical details.
2Manufacturing precision
If spectral distribution measurements are performed for each light source to ensure accurate color control, then the color consistency across fixtures is improved, but the time required for system integration and programming increases significantly
Solution Approach 1:
The patent performs spectral distribution measurements and color gamut calculations in advance during the fixture manufacturing phase. The color gamut data is pre-computed and stored in the fixture's control memory, eliminating the need for time-consuming on-site measurements during system integration. This preliminary action allows the control system to directly use the pre-available color gamut information for accurate color control.
Solution Approach 2:
Instead of performing new spectral measurements during integration, the patent uses copied color gamut data that was previously measured and stored during fixture manufacturing. This copied data is transferred to the control system and used to determine the appropriate intensity adjustments, avoiding the need for redundant measurements and significantly reducing integration time.
3Manufacturing precision
If detailed knowledge of system specifications and programming is required to ensure correct control of each dynamic lighting system, then the color accuracy is improved, but the ease of operation decreases due to the complex programming requirements
Solution Approach 1:
The patent enables the lighting fixtures to self-describe their color capabilities through standardized color gamut data that is automatically provided during system initialization. The control system automatically retrieves and processes this self-provided data to determine the correct intensity adjustments, eliminating the need for manual programming or detailed knowledge of each fixture's specifications. Users simply select desired colors through a graphical interface without needing to understand the underlying technical parameters.
4Measurement precision
If spectral distribution data is processed and handled for multiple lighting fixtures, then the color matching accuracy is improved, but the data handling complexity and processing time increase significantly
Solution Approach 1:
The patent extracts the essential color information from complex spectral distribution data by calculating and storing only the critical color gamut parameters (such as primary and secondary color coordinates, gamut volume). This extracted simplified data retains the necessary information for accurate color matching while dramatically reducing the amount of data that needs to be processed and stored, making the system more manageable and faster to operate.
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
Simplifies the process of combining multiple dynamic lighting fixtures by allowing easy adjustment of fixture colors to a target color, reducing the complexity of data handling and ensuring consistent color output across systems, without requiring detailed knowledge of each system's specifications or expensive measurement tools.
Implementation Method 1
a first and a second light source emitting light having different source colors
Implementation Method 2
The light from the light sources is combined in the lighting fixture resulting in an added spectral distribution
Data Source
AI summary
This invention relates to a method of adjusting the fixture color emitted by a first and a second lighting fixture to a target color, each lighting fixture comprising at least a first and a second light source emitting light having different source colors, and said fixture color is obtained as a combination of said source colors, and said fixture color can be varied by varying the intensity of each light source; where the adjusting of said fixture color to a target color is performed by varying the intensity of said light sources based on both a first color gamut and a second color gamut respectively described by said source colors from said first lighting fixture and said second lighting fixture. The invention further relates to a light adapter and light system for adjusting the fixture color emitted by a first and a second lighting fixture to a target color and to a computer-readable medium having stored therein instructions for causing a processing unit to execute said method.