1999 年 64 巻 516 号 p. 153-160
We obtained 9 effects of the sunlight on spatial orders caused by light composition in a space: Expanding the Horizontal Plane, Giving Depth, Dimming Direction and Distance, Marking Outlines of the Form, Generating Unity, Generating Direction, Emphasizing the Integration of the Spaces, Connecting the Spaces, Emphasizing the Articulation of the Spaces. We also obtained factors causing these effects by examining the location of the light in the space, the form of light in the space, the character of the outstanding light.