EXPERIMENTAL STUDY ON DISCOMFORT GLARE CAUSED BY WINDOWS PART 3 : Development of a method for evaluating discomfort glare from a large light source

作者：Miwaok TOKURA, Toshie Iwata, Masanori Shukuya · 发表于：Journal of Architecture and Planning (Transactions of AIJ) · 年份：1996 · DOI：10.3130/aija.61.17_8 · 被引用次数：50 · 研究领域：Impact of Light on Environment and Health、Building Energy and Comfort Optimization、Color Science and Applications

This paper describes the results obtained from an experiment using a simulated window in an environment test chamber that is assumed to be an actual office. Total of 120 conditions with the window luminance ranging from 2000 to 20000 cd/m^2 and with the window size in solid angle ranging from 0.021 to 0.970 sr were tested. The objective of the experiment was to find a method for evaluating glare from windows with a wide applicable range of source size. The formula which was brought by the experimental results has the exponent of background luminance with a parameter of source size. This formula was examined against the data from our previous experiments conducted in actual room spaces. 0ur glare formula predicts subjective response more rationally especially in the case of large light source than the existing glare indices, since it takes the effect of total amount of light incident on the subject's eyes into account.