Show Me the Data: Characterizing the Performance of Color Tunable Light Sources
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Show Me the Data: Characterizing the Performance of Color Tunable Light Sources
The IES offers Educational Webinars throughout the year, purposefully spanning a broad range of topics and speaker expertise. This was a live webinar, now available as an archived webinar and CEU course.
Description: Color tunable light sources provide tremendous flexibility in terms of spectral power distribution, but the resulting range of variation in chromaticity, color rendition, and other characteristics poses a challenge for product characterization and specification. The millions or billions or trillions (or more!) of spectral power distributions that can be created from one luminaire enables designers to meet various design intents and influence the visual appearance of spaces. However, in contrast with characterizing the performance of a fixed-output luminaire, there are no established methods or guidelines for characterizing performance over the tuning range for the variety of SPD-related metrics, which can impede engineering and specification of color tunable products. Using a massive dataset generated with high-performance computers, this webinar will discuss new methods to convey the extent to which color rendition can be varied, and how different factors (number of LED channels, type of LEDs) influence the range of performance.
Alp Durmus
Assistant Professor
PNNL
Dorukalp “Alp” Durmus is an assistant professor in the Department of Architectural Engineering at Penn State University and head of the department’s Lighting Laboratory. His research and education interests focus on illumination systems, solid-state lighting, and the interaction between humans and the built environment.
Michael P. Royer
Engineer
PNNL
Dr. Michael Royer is a chief engineer at the Pacific Northwest National Laboratory (PNNL), where he leads the lighting research sponsored by the U.S. Department of Energy. He conducts experiments to help refine metrics and specification guidance, with the ultimate goals of advancing lighting quality to improve building occupants’ satisfaction and wellbeing while increasing the use of energy efficient lighting technologies. Michael is a Fellow of the Illuminating Engineering Society (IES) and serves on the IES Vision Science committee and the IES Color committee. Prior to joining PNNL, Michael earned a Ph.D. in Architectural Engineering from Penn State University. He has authored over 80 peer-reviewed journal articles and government reports.
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