Properties of Daylight Measured Indoors A Comparison of North and South-facing Window Light
In order to clarify the properties of daylight inside a building,the spectral distribution of daylight entering a building through a north and south-facing window was measured.Measurements were conducted from 8:00 through 15:00 every hour on a clear,sunny day,a fair day,and a slightly overcast day from June 15,2008 through February 7,2009.The total number of measurement days was 11.The results obtained are as follows:1) The relative frequency of indoor daylight in the vicinity of correlated color temperature 6500K was low both at the north and south-facing windows.2) At both the north and south-facing windows,the spectral distribution of the indoor daylight corresponded well to the CIE daylight in the visible wavelength range.
indoor daylight spectral distribution correlated color temperature principal component analysis
Ichiro KATAYAMA Tsutomu AOKI
Department of Design and Computer Applications, Miyagi National College of Technology Graduate School of Human Development and Environment, Kobe University
国内会议
北京
英文
142-147
2009-11-01（万方平台首次上网日期，不代表论文的发表时间）