Page 7 - Microsoft Word - Competitve Analysis, Color Rendering, MH, Fluorescent, SSL.docx

Summary

The broadband phosphors used in the SSL emit much of their energy in the wavelengths that do not
necessarily score well on the CRI while clearly outperforming in perceived color rendering.

As it’s necessary for a light source to emit a given wavelength for us to see that color (on an illuminated
object), the outdated CRI scale inherently misrepresents true color rendition. It disfavors the SSL by not
considering the multitude of wavelengths that fill the gaps (ref. figure 3) and bring us more of the ten
million colors we can truly discern.

For now, there is no scale for color rendition comparison across lighting technologies. Understanding
this makes it clear that the optimum means of evaluating color rendition across technologies is in
comparing the spectral distributions or, better yet, in side-by-side comparison of the technologies.

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Competitive Analysis, Color Rendering in White Light Page 7