The impact of nonvisual effects of daylight on building occupants: Implications on lighting standards and human centric lighting design

This research tested people's physiological and psychological responses to daylight. Daylight was measured at eye level using the newly developed non-visual light measurement unit. The study found that bright light exposure was associated with calmer heart rate response as well as relationships between heart rate changes and some psychological measures. The findings show that incorporating better daylighting into building design benefits occupants both psychologically and physiologically. Further, lighting design reference measurements should be taken at eye level, as there were significant differences between the current lighting standard's that assess light at the horizontal benchtop and eye level measurements.