Low-cost spectroscopic analysis system for end-user food analysis

摘要

A small spectrometer is disclosed that is suitable for use in mobile devices such as cell phones. In a preferred embodiment, the spectrometer comprises a filter, at least one Fourier transform focusing element, a microlens array, and a detector, but does not use any dispersive elements. In particular, a method for using a spectrometer as an end-user device for making food quality field determinations by comparing to an updatable database accessible by all users of the device is also disclosed.