Referring to the standard of International Electrotechnical Commission (IEC), purple and azure light emitting diodes (LEDs) are used to obtain the blue vision and avoid the blue light hazard (BLH). In order to get the high color fidelity for mixed white LED, the other monochromatic LEDs are chosen according to the CIE 1931 chromaticity diagram and Grassmann Color Law of additive color mixture. Using the mathematical model of monochromatic LEDs and restrictions of chromaticity coordinates on Planckian blackbody locus, there are only 2 independent variables in the simulation to a certain combination of peak wavelengths. The optimized peak wavelengths of the five monochromatic LEDs are 385, 467, 524, 564, and 632 nm. The blue light hazard efficiency of radiation (BLHER) of the practical mixed white light is always less than 0.06 when its correlated color temperature (CCT) changes from 2500 to 7000 K. The BLHER is as low as the incandescent lamp at 2700 K and is much lower than other conventional lighting sources. The measured color rendering index (CRI), color fidelity score (Rf), and color gamut score (Rg) of the mixed white light are more than 84.9, 80.4, and 98.1, respectively. The circadian action factor (CAF) is measured as from 0.23 to 0.89 in the above CCT ranges. At last, the limitations of this work and some potential solutions are discussed.

参考国际电工委员会（IEC）的标准，紫色和蓝色发光二极管（LED）用于获得蓝光并避免蓝光危害（BLH）。为了获得混合白色LED的高色彩保真度，根据CIE 1931色度图和加色混合的格拉斯曼色法则选择了其他单色LED。使用单色LED的数学模型和普朗克黑体轨迹上色度坐标的限制，在模拟中，对于峰值波长的某种组合，只有两个独立变量。五个单色LED的最佳峰值波长为385、467、524、564和632 nm。实际的混合白光的辐射蓝光危害效率（BLHER）始终小于0。当其相关色温（CCT）从2500变为7000 K时为06。BLHER与白炽灯的2700 K一样低，并且远低于其他常规光源。混合白光的测得显色指数（CRI），保真度得分（Rf）和色域得分（Rg）分别大于84.9、80.4和98.1。在上述CCT范围内测得的昼夜节律作用因子（CAF）为0.23至0.89。最后，讨论了这项工作的局限性和一些可能的解决方案。分别。在上述CCT范围内测得的昼夜节律作用因子（CAF）为0.23至0.89。最后，讨论了这项工作的局限性和一些可能的解决方案。分别。在上述CCT范围内测得的昼夜节律作用因子（CAF）为0.23至0.89。最后，讨论了这项工作的局限性和一些可能的解决方案。