These times are not now.Scott, another immensely informative post, right on the heels of your frame-rate post!! Thanks so much for putting this together.
Observer Metameric Failure ("OMF") is likely to be a significant issue for RGB laser sources until the manufacturers can develop spectrally broadened lasers that emit light over a 20-40nm band. I believe this is what Joe Kane was introducing to many of us in his last interview with you.
Green cones exist as a mix of three subpopulations that results in a trimodal distribution with three sensitivity peaks around 528nm, 534nm and 539nm. In order to ensure adequate stimulation of all three subsets, the green bandwidth would need to span from 528-539nm +/- 5nm to account for variability within each subpopulation for a best case scenario of 523-544nm for a spread of 21nm.
Similarly, red cones also exhibit a trimodal distribution with peaks at 555nm, 563nm and 569nm for a span of 14nm +/- 5nm, which results in a final spectrum width of 24nm covering 551-573nm.
I'm not sure about the blue cones, as my primary reference is from 1979 and the authors had a much smaller sample of blue cones. It seems reasonable to expect a similar distribution pattern.
I suspect (hope) the discrete, multiband RGB laser sources will center their output at these sensitivity peaks, rather than just randomly selecting wavelengths based on what's available. On the other hand, multiband should be better than single narrowband, unless the selected wavelengths fall closer to the nulls rather than the sensitivity peaks. Although the graphic describing the wideband sources showed a bandwidth as narrow as 10nm, they will probably still have significant issues with OMF until the bandwidths exceed 20-25nm.
I have not looked at the bandwidth spread of typical phosphors, so I'm not sure to what extent the Pumped Phosphor laser light engines will suffer from OMF.
I hope Dr. Raulston will step in and correct the data in my post based on more recent human research.
Exciting times, indeed!!
Reference: Visual Pigments of Rods and Cones in a Human Retina, JK Bowmaker and HJA Dartnall, 1979