GLARE FROM WINDOW CONSIDERING TIME FLUCTUATION AND TYPES OF TASK

摘要

Glare control is one of the important tasks for active daylighting, which is requested not only for energy saving but also for human health. However, glare evaluation method which can be applied in real situations, i.e. glare source with non-uniform luminance distribution and varies with time, is not still established. This paper reports the results of subjective experiment conducted in the experimental room assuming an office space. Two pairs of the experimental room were prepared, the one was equipped with the real window and the other was with the LED panels, to identify the effects of time fluctuation in the exposed luminance on discomfort glare. The results showed a possibility that the working occupants may sense less glare than predicted by the existing evaluation method.