基于HDR图像的高校教室侧窗采光亮度研究OA

Investigating the luminance of natural daylight in buildings constitutes an effective pathway for expanding the application of daylighting performance metrics and for achieving sustainable development in architectural daylighting design.This research employs high dynamic range(HDR)imaging technology to construct a multidimensional evaluation framework incorporating luminance,luminance ratio(LR),and daylight glare probability(DGP).This framework systematically quantifies luminance characteristics across time,spatial positions,and visual tasks,and combines daylighting simulations to explore optimization strategies for classroom daylighting.The results indicate that peak window luminance 1351 cd/m2 and luminance ratio is 165.22 at 14:00 heighten glare risks.Visual task switching from workplace to blackboard triggers window-side luminance ratios exceeding the critical threshold,causing visual discomfort.Simulation-based optimizations demonstrate that using glass with transmittance 0.4-0.5 or 0.6-0.8 m external shading can reduce DGP and increasing effective daylight availability to at least 10.73%,validating the effectiveness of this HDR-based multidimensional evaluation system combined with simulation analysis for optimizing luminous environments.