1999 年 5 巻 7 号 p. 83-86
Daylighting in buildings has been discussed in the various fields in terms of its pleasantness in the room and effective use of natural resources. In previous papers we have already described ideas, how to fix the angles, simulations and effectively experiment results on a new type of Venetian blind, which slat angles are different to guide daylight into the interior. In this paper, we compared new type (controlled by date and time) with ordinary type on their performance to guide daylight, their performance to intercept direct sunbeam, modeling and uniformity ratio. New type was almost excellent in all points.