Daylighting film is newly invented material for window. When daylighting from the sky come through this film on vertical window, it is refracted up to indoor ceiling. Although it is quite effective to guide daylight, appropriate way to affix it on a window should be different depending on the condition of the window. For southern window, it is not adequate to cover whole window with daylighting film because of several factors such as view and privacy. Thus, partially affixing of daylighting film on southern window is proposed, and subjective effects of several settings were studied.
