Public Lab Smartphone Spectrometer v4

Version 4.0 of the Public Lab smartphone spectrometer. This spectrometer is a scientific tool that straps onto an Android or iOS phone, tablet, or any camera capable of focusing very close (macro-mode) and allows you to collect spectra. Why would you want one? You can use it to identify the elemental composition of things (light bulbs, olive oil, beer, etc) based on the colors of light they emit. You can even use it to monitor your home brewing progress (http://bit.ly/Xyor6B).

You can order one on Shapeways (https://www.shapeways.com/model/976427/public-lab-smartphone-spectrometer.html), and there is also a papercraft version available here: http://store.publiclab.org/products/foldable-mini-spectrometer

This design, by Brad Dudenhoffer (http://publiclab.org/notes/braddudenhoffer/2-23-2013/mobile-spectrometer-design-update) improves on his previous design with thicker walls, more ergonomic grip and screw-together parts.

Brad -- if you'd like to host this please go ahead and I can take this version down or whatever. Thanks for your great work!

License: CERN OHL v1.1 Public Lab contributors
http://publiclab.org/tool/spectrometer