Yamaguchi Hideki

How should a building environment be optimized for various users? To accomplish such an environment, what building equipment is necessary? To answer these questions, we study design methods for lighting environments based on human sensations, especially the mechanism of visual sensation. The optimized environment may differ by building purpose and user characteristics. So, we discuss methods to quantitatively determine how different lighting environments affect human minds and the characteristics of visual function in experiments involving human subjects. Simultaneously, we develop design methods for lighting environments to apply the results of quantitative measurements to actual building environments. We further extend our research to include situations of natural disaster. For instance, we might face a situation where only a part of the building function is available in a disaster. In such a case, which part of the building environment must be prioritized for protection? How can we ensure such prioritized protection and what kind of equipment do we need to plan in advance? Our research aims to answer these questions.