Hi again, I think I've found a couple of solutions.
Robertsons algorithm:
http://www.brucelindbloom.com/index.html?Eqn_XYZ_to_T.html
Also I stumbled over this PDF:
http://www.nadn.navy.mil/Users/oceano/raylee/papers/RLee_AO_CCTpaper.pdf
That PDF reduced the fairly complex algorithm...
Very true. Using Kelvin temperature to "classify" light sources is terrible inaccurate, but very common in aquaristics. The measure will not be useful for anything but give a feeling for how "cold" or "blue" a light source will feel when lighting an aquarium.
I will use the calculations to...
Hi all, new here (from Sweden, so excuse my english).
I would like to take the spectral power distribution of a light source (first and foremost different kind of flourescents, not black bodies) and calculate the kelvin temperature of the light emitted from the light source.
With the help...