Abstract
Appling natural light to the spaces for the exhibition requires the compromises between the expectations of visitors whom are preferable to perceive the details of the works of art, and preservation of light sensitive artworks of least exposure to light. To solve the compromises, it requires a careful planing to control the penetration of the daylight by physical and mechanical devices such as diffusive glasses and blinds. The control of light penetration can also be achieved by providing spaces inside and outside of the building. The aim of this study is suggest the conceptual methods to control the daylight by space design. Museums and galleries using daylight were investigated how the daylight is controlled by the integrated spaces in the exhibition spaces. This study presents nine ways of controlling daylight penetration by space design.