抄録
The purpose of this study is to reexamine the mechanism of design and the aesthetic principle from a viewpoint of effect-optical image of substance, and to construct the more comprehensive theory of design in Modern Architecture. In this paper, in order to clarify the basic problem of architectural design that Stability and Conveniency occasionally impair Beauty, I analized the change of designs in Mendelsohn's Schocken Department Store and the transition of sketches in Mies' Tugendhat House. As the result, there seems to be a mechanism. It is as follows. The changes of form caused by Stability and Conveniency bring another kind of optical image of substance into the facade and change the optical grouping of the elements in the facade. Under the mixed condition and the unstability of the grouping of the elements, consequently, a sense of disharmony and ambiguity are brought out, which therefore impair Beauty. So considering that forms in Modern Architecture intrinsically bring about many different kinds of optical image of substance, it seems that this mechanism is the basic formative problem in Modern Architecture.
