Field measurement on the amount of outdoor exposed light in nighttime in Japan
Field measurements on the characteristics of exposed light of the passengers in nighttime were conducted. Vertical illuminance and correlative colour temperature at the passengers eye and luminance distribution in the visual field of the passengers were measured in 3 different places each with 3 different types of area, business district, downtown area and residential area.The results showed that there was little difference of correlative colour temperature between different type of area. On the other hand, the illuminance in downtown area was above ten times of that in business district. From the results of the measurements, plasma melatonin percent change control-adjusted MS which could indicate the effects of light on circadian regulations was calculated.
Field measurement Nighttime Circadian regulation Correlative colour temperature
Mochizuki, Etsuko Iwata, Toshie Itoh, Daisuke Tanabe, Shin-ichi
Department of Architecture, Waseda University School of Information and Design Engineering, Tokai University Graduate School of Science & Technology, Tokai University Unified Graduate School
国际会议
26th Session of the CIE(国际照明委员会（CIE）第26届大会)
北京
英文
1148-1151
2007-07-04（万方平台首次上网日期，不代表论文的发表时间）