A STUDY ON QUANTIFICATION OF “THE CENTER OF GRAVITY OF LIGHT” IN NON-UNIFORM LIGHTING ENVIRONMENT

In this paper, in order to measure non-uniform lighting environments, basic studies are conducted on whether “the center of gravity of light” used by lighting designers can be estimated from the luminance distribution. Evaluation experiments were conducted to answer the position where examinees felt the center of gravity of light in 19 patterns of non-uniform lighting environments. As a result, it is shown that it is possible to estimate the center of gravity of light that people perceive by calculating the luminance distribution in the guided field of view with reference to the calculation method of the center of gravity.