On 11/22/2011 12:32 PM, Simon Quellen Field wrote:
> With a 2D sensor, you get a rectangle of light from a slit going through a grating.
> If the sample is only in the top half of the slit, and the bottom half of the slit lets
> unfiltered light through, then you can simply compare the values in the top half
> with those in the bottom half to get the percentage of light that the sample has
> absorbed. This is nice, because each image calibrates itself.
Sounds just right for a OSHW spectrometer.
JG
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