Blue wavelengths of light have the greatest impact in synchronizing the human circadian system during the daytime, and in causing circadian disruption and associated health disorders at night. To maintain human health and performance it is therefore critical to manage the timing and dosage of the blue content of white light at night, especially for those working under IES recommended 200-1000 lux table top intensities. There are two barriers to setting standards. First the lighting industry needs to achieve consensus on what range of wavelengths constitute the blue light that affects the human circadian system (i.e. “bio-active blue”). Second the threshold level of bio-active blue content that produces circadian disruption at night has not been precisely defined. We report the direct measurement of circadian spectral sensitivity curves in healthy people during night shift exposure to IES recommended levels of polychromatic white light. The results provide empirical evidence that to avoid circadian disruption at night LED lights need to emit less than 2% of total visible light in the 440-490nm range between sunset and sunrise. Using the 2% blue content threshold provides a simple metric that lighting specifiers can use to ensure that light at night does not have an adverse impact on health and performance. Learn More >>
February 27 - March 1, 2019 - Martin Moore-Ede, MD, PHD, and CEO of CIRCADIAN Light has been selected to present at the Strategies in Light Conference at the Mandalay Bay Convention Center in Las Vegas. His presentation will be on "The Critical Threshold for Blue Content of Lighting at Night." Learn more >>
July 18, 2018 - Martin Moore-Ede, MD, PhD, CEO of CIRCADIAN Light spoke at the Light for Health and Wellbeing Conference in Newport Beach, CA. Dr. Moore-Ede's presentation was titled "Circadian Spectral Sensitivity to White Light in the Workplace." Learn more>>
June 6, 2018 - Kevin Kulp presented at the Environmental Health & Safety (EHS) Seminar and Industry Trade Show in Galveston, TX on combating fatigue in 24/7 operations and how lighting might contribute to fatigue.
May 21, 2018 - Andrew Moore-Ede presented a webinar on Shiftwork and Shift Scheduling Practices, sponsored by the Southern Gas Association. CIRCADIAN shared the shift scheduling practices of gas control operations, the most common shift features and schedules being utilized, and how they were selected. Additionally, Andrew shared best practices for assessing and changing shift schedules.
April 8, 2018 - Andrew Moore-Ede , Garrie Wright, and Bill Davis spoke at Navigator 2018 in Las Vegas. CIRCADIAN was also an exhibitor at the show. Learn more >>
August 30, 2017 – Dr. Martin Moore-Ede, CEO of CIRCADIAN Light spoke at 2018 Strategies in Light Conference in Long Beach, CA from February 13 -15, 2018. Dr. Moore-Ede spoke about the negative health implications of being exposed to too much bio-active blue light at night. Learn more
July 27, 2017: Martin Moore-Ede, MD, PhD, CEO of CIRCADIAN Light was a speaker at the Light for Health and Wellbeing Conference in Newport Beach, CA. Dr. Moore-Ede's presentation was titled "Taking the Obesity and Diabetes Risk Out of Light at Night." Learn more here
January 24, 2017: Martin Moore-Ede, MD, PhD, CEO of CIRCADIAN Light spoke at the Owens Corning Sustainability Summit, in Toledo, Ohio. Dr. Moore-Ede addressed how new advances in circadian LED lighting technology can meet energy efficiency standards and optimize 24/7 workforce productivity, health, and safety.
October 22-23, 2016: >Martin Moore-Ede, MD, PhD, CEO of CIRCADIAN Light was a speaker at the LESA/IES conference at the 2016 IES Annual Conference, Orlando, Florida. Dr. Moore-Ede spoke on CIRCADIAN Light for the 24/7 Workplace at the workshop "TRANSFORMING HEALTHCARE AND WELL-BEING THROUGH LIGHTING organized by the Illuminating Engineering Society (IES) in conjunction with the RPI National Science Foundation Center for Lighting Enabled Systems & Applications (LESA). This specialized two day workshop brought together a small but select group of key experts to provide essential input to a strategic roadmap for developing future lighting systems and evidence-based research to promote the positive impact of lighting on patients and providers in a healthcare setting.