A color measurement instrument includes a housing and illuminators, a two-dimensional photodetector array, and an optics system within the housing. A UV filter wheel closes the housing to prevent contaminants from entering the housing. The filter wheel supports UV filters and non-UV glass that can be...http://www.google.com/patents/US7262855?utm_source=gb-gplus-sharePatent US7262855 - Color measurement engine with UV filtered illumination
