研究目的
To simulate dynamic daylight using red, green, cyan, warm white and cool white (RGCWW) LEDs individually controlled, aiming to achieve high circadian and visual performances that can synchronize circadian rhythm in closed environments without daylight, improving mood and alertness.
研究成果
The tunable LED lighting with RGCWW five channels successfully reproduces important characteristics of natural daylight, including CCT and CAF, with high color fidelity (CRI>90). This lighting solution can synchronize circadian rhythm in environments lacking sufficient daylight, offering better visual comfort, mood, and alertness. Future improvements include filling the spectral gap at 460-480 nm and exploring the effects of infrared and ultraviolet components on circadian rhythm.
研究不足
The study notes a small gap in the SPD of mixed white light at 460-480 nm, which may affect the CAF and CRI compared to natural daylight. Future studies aim to fill this gap with high-efficiency blue LEDs. Additionally, the non-visual effects of lighting components are not fully understood, requiring further biological function experiments.
