Abstract
We examine the difference between the newly developed IES TM-30 color indices and some of the most common previously established color indices for LED systems which are used for lighting purposes, focusing on the influence of realistic spectral variations among different system designs and manufacturing runs. We find a significantly stronger influence of the employed blue InGaN wavelength on TM-30 Rf and Rg than on CRI Ra and FCI. In addition, for the established combination of green converted InGaN chips with red InGaAlP chips, we observe large differences in the effect of the wavelength of the red emission of InGaAlP chips on Rf and Ra.
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