# SPD of light sources studied in # Jost, S, Cauwerts, C, Avouac, P, The new CIE 2017 colour fidelity index Rf: a better index to predict perceived colour difference? # paper submitted to JOSA A, December 2017 # measured at ENTPE/LGCB/P2E, France with a JETI Specbos 1211-UV spectroradiometer # reference white standard (Gigahertz-Optik ref. BN-R986SQ2C) # unit: [W/(sr*sqm*nm)]