An optimization model for luminous efficacy of a spectrally tunable light‐emitting diode (LED) daylight simulator under constraint of metamerism index was developed. It was first reported that the optimal spectrally tunable LED daylight simulator of AA grade for D50, D55, D65, and D75 standard illuminants could consist of two quantum dot‐integrated LEDs (QDLEDs) with the ultraviolet chip and two other QDLEDs with the blue chip. The optimized spectral parameters of each QDLED, as well as photometric and colorimetric performances of D50, D55, D65, and D75 daylight simulators, were obtained by maximizing luminous efficacy under the metamerism index for both a visible and ultraviolet range less than 0.25. The limit luminous efficacies of four daylight simulators using four QDLEDs under the ideal case will reach 181 lm/W to 205 lm/luminous efficacies with a radiant efficiency of both the ultraviolet and blue chips of 60%, as well as a quantum efficiency of a quantum dots layer of 90%, will reach 100 lm/W to 112 lm/W.

中文翻译：

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使用四个量子点发光二极管优化可光谱调谐的日光模拟器，用于视觉评估颜色

建立了同色异谱指数约束下的光谱可调发光二极管日光模拟器的发光效率优化模型。首次报道，对于D50，D55，D65和D75标准光源，AA级的最佳光谱可调LED日光模拟器可以由两个带有紫外线芯片的量子点集成LED（QDLED）和两个带有蓝色芯片的QDLED组成。 。每个QDLED的最佳光谱参数，以及D50，D55，D65和D75日光模拟器的光度和比色性能，是通过在同色异谱指数下使可见光和紫外线范围均小于0.25的发光效率最大化而获得的。