On Fri, 03 Dec 2004 17:54:33 -0800, Jim Kelley
wrote:

I can if the light source is a sodium discharge lamp. :-) What sort of
light source are you assuming?

Hi Jim,

I bet you can!

Edison/Mazda style tungsten filament light bulb. Available at K-Mart
or Walton's or any of a million retail outlets, even in Texas. If not
in Texas, then heat a brandin' arn to incandescence (bet he can't tell
us what temperature for 555nM tho').

Please, folks, Optics is for the professionals. Don't try this at
home! ;-)

73's
Richard Clark, KB7QHC