Shoebox Spectrograph

The shoebox spectrograph is a low budget device for examining spectral colors.  The light that enters the spectrograph can come directly from a luminous object or can be light transmission through an object, reflection of light from the object, or even fluorescence from the object.  If one uses one's eye as the sole detector the shoebox spectrograph costs ~ $1.00 in parts.  If one replaces their eye with a webcam (or some other device for taking photographs), the cost per units is ~$25.00.  The advantage of taking photographs is that the pictures are spectrally accurate (to about 1.5nm) representations of the spectra.  

Construction Document and Instructional Experiment Possibilities