Color/optical characteristics measuring systems and methods are disclosed. Perimeter receiver fiber optics/elements are spaced apart from a central source fiber optic/element and received light reflected from the surface of the object is measured. Light from the perimeter fiber optics pass to a variety...http://www.google.de/patents/US7110096?utm_source=gb-gplus-sharePatent US7110096 - Method for determing optical characteristics through a protective barrier
