By using spectral loss simulation, it was found that six spectral bands are needed to produce a daylight simulator with good performance. The optimization model for both Commission Internationale de l'Eclairage metamerism index and luminous efficacy (LE) of light-emitting diode (LED) daylight simulator (LDS) was developed. The optimal LDSs with AA grade for D50, D55, D65, and D75 illuminants should consist of the violet LEDs with violet phosphor excited by an ultraviolet chip, and the white LEDs with green, yellow, and red phosphors excited by a blue chip. Their limit luminous efficacies under the ideal case could reach 179 to 204 lm/W. And finally, a scheme for a spectrally tunable LDS with AA grade was presented.

中文翻译：

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基于CIE同色异谱指数法的发光二极管日光模拟器优化

通过使用光谱损失模拟，发现需要六个光谱带才能产生性能良好的日光模拟器。开发了针对发光二极管 (LED) 日光模拟器 (LDS) 的 Commission Internationale de l'Eclairage 同色异谱指数和发光效率 (LE) 的优化模型。用于 D50、D55、D65 和 D75 光源的 AA 级最佳 LDS 应包括由紫外线芯片激发的紫色荧光粉的紫色 LED 和由蓝色芯片激发的绿色、黄色和红色荧光粉的白色 LED。它们在理想情况下的极限发光效率可达179至204 lm/W。最后，提出了一种AA级光谱可调LDS方案。