Request InfoMcPHERSONMcPherson Inc.’s Deep UV Luminescence Spectrophotometer offers optical characterization and spectral measurements from the vacuum ultraviolet to the near-infrared. The optical test system is used with emitting samples such as phosphors or photo- and electroluminescent crystals, and can also measure reflectance, transmission and fluorescence, from 120 nm to 2.2 µm. 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