Patent ID: 8218142

Claim:
A device for making spectroscopy measurements with reduced or eliminated surface reflections comprising: an elongated member comprising an outermost opaque thin walled enclosure; an optically transparent thin-walled enclosure adjacent an inner surface of said outermost thin walled enclosure; one or more optical fibers centrally and axially disposed and spaced apart a distance B with respect to the optically transparent thin-walled enclosure; a gap between the optically transparent thin-walled enclosure and the one or more optical fibers; an opaque powder material filling the gap; wherein said elongated member is adapted to be coupled to a spectrometer and an illumination source to provide a light signal from said illumination source along said optically transparent thin-walled enclosure and collect a scattered light signal from said sample by said one or more optical fibers to provide to said spectrometer.