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在可调光照明的色彩限制下,用于多通道LED光源的最大亮度预测方法

Fuzheng Zhang, Jingzhi Zhang, Xiaomei Zhang

|September 23, 2025

概括

确定多通道LED光源 (MLLS) 的最大光输出值是具有挑战性的,因为颜色的变化. 本研究介绍了一种整合色彩和发光率模型的预测方法,为可调节的照明应用实现高精度.

科学领域:

光电学是指光电子产品.
颜色科学颜色科学
照明技术照明技术

背景情况:

多通道发光二极管 (LED) 光源 (MLLSs) 提供灵活的可调节照明,用于调整相关的色温 (CCT) 和亮度.
由于单个LED通道的非线性和颜色转移,使用MLLSs在特定色彩上达到最大亮度是很困难的.

研究的目的:

开发和验证一种预测方法,以估计MLLS在目标色度下可实现的最大亮度.
为了克服MLLSs中控制信号的简单线性缩放引起的颜色转移的挑战.

主要方法:

开发了一种新的预测方法,集成了一种颜色预测模型和一个光度优化模型.
基于差异演变的受约束优化算法被用来处理非线性.
该方法在两个MLLS (四通道振幅调制和八通道脉冲宽度调制) 上通过各种白光色谱 (2200K到6500K) 验证.

主要成果:

该预测方法在估计最大亮度和色度方面表现出极好的准确性.
平均相对亮度误差为MLLS1的1.11%和MLLS2的0.88%.
平均CIE 1976年色彩差异为MLLS1的1.07 × 10-3和MLLS2的0.57 × 10-3 ,与颜色预测模型的性能相比.

结论:

拟议的方法准确地预测了MLLS在特定色度的最大发光度,并考虑了非线性.
这种方法可以精确控制可调节的照明系统,避免不必要的颜色变化.
这些发现对于需要精确的颜色和亮度控制的先进照明应用具有重要意义.

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