LED Light Source Based on Adjustable Biological Rhythms

Abstract

In this paper, the whole process technology system of health lighting is constructed: a spectral parameter calculation system based on CIE standards is established, and the core parameters such as XYZ triple stimulus value, CCT, and mel-DER are accurately calculated through numerical integration, Krystek segmented fitting, Gaussian simulation, etc. A multi-channel LED multi-objective collaborative optimization framework and a solar spectral time-varying dynamic regulation model are constructed, and the objective function of optical characteristics and circadian rhythm design is integrated, and the SLSQP algorithm, time smoothing constraint and intelligent initialization strategy are introduced to ensure the optimization effect. The core performance is verified by experiments: high color rendering ( ) and low rhythm interference (mel-DER=0.2761) with a single light source, dual mode to achieve day and night color temperature switching, and the dynamic model accurately reproduces natural light. Research innovation provides solutions from single-source evaluation to full-day dynamic simulation, providing quantitative support for health lighting design, and its linear assumptions and sample size limitations need to be further improved.