In our sister lighting publicaton, Mariana Figueiro, a professor at the Lighting Research Center (LRC) at Rensselaer Polytechnic Institute as well as the LRC's acting director, and permanent LRC director Mark Rea, who is on sabbatical, write about the importance of "the development and use of metrics that characterize circadian light—or light that acts as a stimulus for the human circadian system—to establish a design-performance standard (for a particular time of day) and to further research the suppression of melatonin production. ... Among the proposed metrics is 'melanopic lux,' " which they find insufficient and suggest a better metric. Read Figueiro and Rea's full article at Architectural Lighting.

Read more >