Spectrometer
Notes on spectrometry for the spectrometer tool:
Color algorithms to automatically recognize wavelengths:
http://stackoverflow.com/questions/1678457/best-algorithm-for-matching-colours/1678498
http://www.velocityreviews.com/forums/t430790-rgb-wavelength-intensity.html
http://codingmess.blogspot.com/2009/05/conversion-of-wavelength-in-nanometers.html