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Versatile Spectro Photometer for Cross-media Color Management

We report a modular and exible spectrophotometric system which allows for fast recordings of spectra from reeecting targets, light sources, and self luminous displays. The sensor device is a PC-controlled low-cost grating spectrophotometer with a CCD pixel array; the integration time and thereby the sensitivity can be controlled by varying the clock rate of data readout. Collimating lenses and optical bers are used in combination with a PC-controlled mechanical scanning table to obtain measurements from a series of patches from various calibration target charts. The main application of this spectrophotometer is the spectral characterization of color targets and input/output devices for cross-media color management.