[Darkroom] portable, inexpensive and microcontrolled spectrophotometer based on white LED as light source and CD media as diffraction grid

[Kelly]

I'm going to try attaching this file that Joachim and BenG (as
differentiated from Ben Rupert) and I are talking about.

-Kelly
-------------- next part --------------
A non-text attachment was scrubbed...
Name: LEDphotometer.pdf
Type: application/pdf
Size: 191798 bytes
Desc: not available
URL: <http://www.noisebridge.net/pipermail/darkroom/attachments/20100329/f63324fc/attachment.pdf>