Spectrometer

Overview
A spectrometer (spectrophotometer, spectrograph or spectroscope) is an instrument used to measure properties of light over a specific portion of the electromagnetic spectrum, typically used in spectroscopic analysis to identify materials.

Details
A spectrometer is needed for RepLab. Several open-source groups are already working on building them -


 * http://arkfab.org/?p=64
 * http://www.metacafe.com/watch/852073/do_it_yourself_cool_spectrometer/
 * http://publiclaboratory.org/tools/spectrometer

Components

 * Laser
 * Mirrors
 * Lenses
 * Detector
 * Display