Abstract
The purpose of this paper is to analyze the psychological feeling of room lighting systems as one of housing design elements. Several types of illuminating system are controlled in an experimental room according to the experimental design regarding direct or indirect illumination, tungstenic filament or fluorescent lamp, high or low level of illuminance, and with or without recessed light and floor stand. Thirty three designers participate to evaluate the atmosphere or lighting system with semantic differential 7-point scales of 21 adjective words. The results are calculated by multivariate analysis. The indirect lighting system, tungstenic filament lamp, and middle illuminance level enhance the psychological feeling.
