12 Nov
2013
12 Nov
'13
11:52 a.m.
On Tue, Nov 12, 2013 at 11:06 AM, Hol Gaskill <hol(a)gaskill.com> wrote:
What's the badwidth you're interested in?
Shooting from the hip, I'd
recommend a photodiode
http://media.digikey.com/pdf/Data%20Sheets/Opto%20Diode/ODD-470W.pdf if
you just need a coarse signal that detects the band centered on 470nm.
Also, you could use an analog to digital converter or even just a properly
dialed-in comparator to cut out the heads and tails of the spectrum.
This could be a viable device for people who don't have a smartphone,
however.