* Use fluorochromes with overlapping spectra
* Separate dyes based on entire spectrum
* Use many dyes simultaneously (~20)
* Filterless scanning system
* Time dependent spectra
* Multiple illumination sources - Hg and Xe burners, Argon-Ion laser,
HeNe laser, Solid State 532nm laser, Pulsed-* * * *Doubled Nitrogen
Dye laser, white light transmission
