Architectural lighting is no longer just for the visual system. With growing emphasis on healthy built environments, circadian lighting is a popular topic that many designers and end-users are being asked to explore. Within the eye we each have non-visual photoreceptors which assist in regulating our circadian rhythms. Modern architectural lighting has been designed and calibrated to meet the needs of our visual system, however it provides insuffcient stimulus for the human circadian system and does not allow our bodies to properly reinforce our natural biological signals. The lack of proper circadian stimulus and the desynchronization of our activity with the solar day has been shown to lead to a state of Social Jet-lag which has been tied to many disfunctions, such as disrupted sleep cycles. This seminar explores the science behind the circadian system and outlines how to integrate essential spectral content in architetural lighting that helps entrain and reinforce healthy circadian rhythms.Presenter Ken Esterly, IES - VP Sales Ken has over 18 years of expertise in LED lighting. His extensive knowledge of lighting technology and application provide a unique perspective on the development and integration of quality lighting technology for today’s rapidly advancing design environment. Who Should Attend: Architects, Interior Designers, Lighting Designers, Engineers, Design-Build Contractors, End-Users, Owners Representatives, Facilities Managers, Operations Managers.