Preferred Illuminance Non-Uniformity of Interior Ambient Lighting

In various interior spaces, specific trends are often discerned in combinations of the type of space and the method of lighting used. The type of space determines the type of lighting because of the relationship between characteristics of lighting methods and the ease of certain behaviors. This study examined the method of lighting preferred for interior behaviors. First, preferred lighting non-uniformity for behaviors was investigated using a questionnaire. Next, an experiment was carried out searching for the degree of lighting non-uniformity preferred for behaviors using a reduced scale model. The results of the questionnaire survey and the experiment were clearly similar, it was possible to quantitatively predict trends in the non-uniformity of interior lighting preferred for many other types of behavior not covered by this experiment.