Analysis of Color Mixing System with Uniform Illumination Based on STM32
This paper describes a color mixing system with uniform illumination,which consists of an integrating sphere structure,a light intensity control system based on STM32 microcontroller,and multi-color LED.In electronics,based on a microcontroller and a voltage controlled constant current source circuit,a light intensity control system is designed for multi-color LED driving and light intensity control.In optical systems,based on the Monte Carlo ray tracing model,the uniformity of illumination on the integrating sphere is verified and the required illumination area is determined.Experiments have shown that coupling electronic and optical components for system construction and performance testing can achieve good color mixing ability,and both monochromatic and mixed light have excellent illumination uniformity.
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