A portable spectrometer small enough to fit inside a smartphone camera could soon be used to diagnose diseases including skin cancer.
As well as diagnosing diseases the portable spectrometer could also be used to analyse urine samples, check pulse and oxygen levels and measure environmental pollutants.

The research, conducted at Massachusetts Institute of Technology (MIT) could also have applications in space, with spectrometers widely used on missions exploring our solar system and beyond. Further details were published in the journal Nature.





http://www.wired.co.uk/n...pectrometer-breakthrough

I wonder how long it will be until this is commercially viable.