Study on Affluent Lighting in a Japanese Living Room

The purpose of this study is to clearly define the meaning of affluent lighting in a living room and together with its concerned elements. Two psychological experiments, one using the evaluation grid method and other using the semantic differential method, were carried out using photographs of living rooms. (1) 24 meanings and 41 elements emerged from the results of experiments using evaluation grid method. Relationships among the 24 meanings were plotted in a figure using MDS. The 41 elements were classified into six groups. (2) The meanings of affluent lighting were explained by feelings of comfort, brightness, and variety from the results of experiments using the semantic differential method. The important elements were plural luminaries and brightness. The results show that affluent lighting can suit various situation in a living room.