Optical spectrometer with wavelength range 190—3200 nm. Samples can be analyzed in transmission, absorption, or reflection. Large-sample compartment (12-inch diameter maximum) with integrating sphere for measurement of opaque, translucent, or turbid materials (optical materials, semiconductors, glass, plastics, foods, etc.). 0.3 nm UV-Vis resolution, 1.6 nm near-IR resolution.