Lighting Plan using the Metric of Space Brightness Considered Interior Refrectivity(<Special Issue>New Evaluation Methods for Lighting Environments)

Abstract

In general, the average illuminance calculation is used frequently for lighting planning; however, including perceived space brightness in the planning allows lighting design to take both perceived space brightness and visibility into account, which was difficult with the use of average illuminance only. This paper describes cases based on the prediction of the Feu value conducted during design time to the actual Feu measurement after spaces are completed, and reports the results of comparative studies based on the cases.