全般照明器具の形状と配置の主観評価実験

抄録

The main purpose of the work described in this paper was to develop a new lighting design technique to help create a pleasant or comfortable indoor lighting environment. Subjective appraisal was studied, using the semantic differential method on impression given by the stimulus of perspective drawings which have various shape and array of luminaires on ceiling.
At the first experiment, numerical values of data was processed by correlation analysis between harmonious/unharmonious and other scales, and yielded the following results: Three scales affected harmonious/unharmonious in order of strongness of effect, such as too large/too small, the impression on area size of luminaires, too many/too few, the impression on number of luminaires, too narrow/too wide, the impression on distance between the edge of the luminaire and the neighbor one. In the relationship between rating of impression and value of physical factor, the result of subjective appraisal in real buying space had similar trend as the above result.
At the second experiment, authors studied on the factor analysis concerning the atmosphere realized by the stimulus. It was clarified that the important factors were harmony, unusualness and activity. Square luminaires tended to realize more unusual atmosphere than rectangular ones.