Practical Implementation of Circadian Lighting

Inessa DemidovaLighting Designer, Arup

Brainard, G. C., et al. (2001). "Action spectrum for melatonin regulation in humans: evidence for a novel circadian photoreceptor."Thapan, K., et al. (2001). "An action spectrum for melatonin suppression: evidence for a novel non-rod, non-cone photoreceptor system in humans."Berson, D. M., et al. (2002). "Phototransduction by retinal ganglion cells that set the circadian clock."

Questions and observations

How do we consider it?

What can be improved in the way lighting designers

work on schemes with circadian lighting?

Research methods

s.

What is circadian lighting?

“An artificial lighting system which is designed to influence human circadian rhythms by changing the qualities of light throughout the day”

Ian Ashdown

Yassine Mrabet

Yassine Mrabet

DIN SPEC 67600:2013-04 Biologically effective illumination - Design guidelines

DIN SPEC 67600:2013-04 Biologically effective illumination - Design guidelines

Proposals

Daylight

Control strategy

Lighting design principles

Hey, what’s your CRI R9?And circadian light (CLA), circadian stimulus (CS), melanopic lux, please?

Combining equipment

General proposals

Conclusions

Can circadian lighting fix this office?

New researchNew standardsNew products

=Happier people