A NOVEL METHOD TO EVALUATE DYNAMIC LIGHTING ENVIRONMENT THAT MEASURES VISUAL AND NONVISUAL PERFORMANCE IN ARCHITECTURE SPACES

摘要

Light and lighting measurements have been out there since the era of Edison bulb. It provides a fair comparison between different products and technologies by quantifying the optical performance to determine its effectiveness in visual performance. In addition, in recent times, the light and lighting experts have continuously found the light contribution to human's non-visual functions such as circadian entrainment, mood regulation, and photobiological and photochemical effects to the retina. More and more lighting products have capabilities to change the lighting condition based on the user's preference. Due to that, the quantification of light and lighting becomes more challenging. In this paper, we focused on evaluating the lighting environment in an architectural space like a classroom or an open office, in which the lighting condition changes throughout the day to provide a useful non-visual stimulus.