Abstract
The purpose of this paper is to clarify thc relationships between physical behavior of the spatial distribution of light and user's psychological response. The authors considered that the spatial distribution of light was based on "light source arrangement" and "interior reflective surface composition". From this viewpoint, a series of experiments with scale models on "interior reflective surface composition" was carried out, and then another series of experiments in actual living spaces on "light source arrangement" was done. In consequence of these experiments, the following results were obtained. 1) It was shown that total quantity of light and optimal allocation of light characterize visual perceptional response in lighted environment. 2) It was confirmed that above-mentioned properties effect on atmosphere evaluation in actual space such as livingroom.
