A miniaturized spectrometer/spectrophotometer system and methods are disclosed. A probe tip including one or more light sources and a plurality of light receivers is provided. A first spectrometer system receives light from a first set of the plurality of light receivers. A second spectrometer system...http://www.google.com.au/patents/US7907281?utm_source=gb-gplus-sharePatent US7907281 - System and method for calibrating optical characteristics
