We often feel serenity in a room enclosed by a light transmitting shoji screen. Psycological effects of different sunlight phenomena on such shoji screens were examined by experimentations using slide pictures of 1/3 scale mockups. 1. The transmitting shoji light was more effective for the sense of serenity than the reflecting shoji light. 2. Manipulative 7 types of serene shoji light were evening sun light, direct sunlight through tree leaves, and skylight through wooden screen. 3. Sense of connection with such exterior elements was one of the causes of the serenity. 4. "Calm", "warm", and "soft" images of shoji were elements of serenity. 5. The light phenomena on a shoji screen are manipulative by means of types of light, a shoji screen itself, and elements between these two.
