Dynamic Color Sequence Generation in Lighting Systems
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Solution Overview
Problem
Creating dynamic color sequences and spatial color distributions in lighting systems is a time-consuming and tedious process for designers, requiring manual calculation of numerous color points and programming, which is impractical and labor-intensive.
Innovation Solution
A system that allows designers to select colors and define paths in color space using pre-defined functions, calculating a set of discrete color points along the path, with user-settable conditions for speed and number of color points, facilitating the design of dynamic color sequences and spatial color distributions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If designers manually calculate and program each color point in dynamic color sequences, then precise color control is achieved, but the design process becomes time-consuming and tedious
Solution Approach 1:
The system pre-calculates and stores a comprehensive color lookup table (LUT) containing chromaticity coordinates and corresponding LED drive currents for all possible color points before design time. This preliminary preparation eliminates the need for manual calculation during the design phase, allowing designers to simply select colors from predefined palettes without time-consuming computations.
Solution Approach 2:
Instead of manually calculating each color point, the system uses a pre-computed color lookup table that copies and stores all possible color solutions in advance. The design process then becomes a matter of selecting and referencing pre-existing color data rather than performing repetitive calculations, significantly reducing design time while maintaining precision.
2Manufacturing precision
If designers manually program each color point for spatial color distributions, then accurate color placement is achieved, but the complexity and labor increase significantly
Solution Approach 1:
The system segments the complex color distribution programming task into two parts: (1) a pre-computed color lookup table that contains all possible color solutions, and (2) a simplified design interface where designers only need to specify spatial parameters and color selections. This segmentation eliminates the need for manual programming of each color point's coordinates and intensity values.
Solution Approach 2:
The system performs automatic color point generation and programming based on designer selections and spatial parameters. The control device automatically calculates and programs the LED drive currents for each spatial position using the pre-computed lookup table, eliminating the need for designers to manually program each color point and reducing programming complexity.
3Adaptability or versatility
If multiple light sources with different colors are used to create variable color illumination, then color versatility is improved, but the system complexity increases
Solution Approach 1:
The system uses a universal control approach where a single color lookup table serves all light sources and all possible color requirements. The same LUT structure and selection methodology apply regardless of the number of light sources or desired colors, providing a unified solution that handles color versatility without proportionally increasing system complexity.
Solution Approach 2:
The system achieves color versatility by changing the selected color parameters from the pre-computed lookup table rather than physically reconfiguring the light source system. By varying the color selection inputs and spatial parameters, the system can generate any desired color distribution without adding physical complexity to the hardware architecture.
Data Source
AI summary
An illumination system (10; 100) for generating light comprises:at least one a lamp assembly (14; 114) capable of generating light (17; 117) with a variable color;a controller (15; 115) for controlling the lamp assembly;a user input device (19) coupled to the controller.The controller (15; 115) is designed, on the basis of data received from the user input device (19), to generate color control signals for the lamp assembly.The controller (15) is designed, on the basis of data received from the user input device (19), to calculate a path (47) in a color space (31), to calculate the coordinates of a set of color points (E; CP(2), CP(3)) along the calculated path (47), and to generate its color control signals in accordance with the calculated color points.The illumination system may be for generating dynamic light sequences, or for generating a spatial color distribution.