X-rite Europe Gmbh

X-rite Switzerland Gmbh

Matthias Scheller Lichtenauer

Peter Ehbets

A colour measurement device includes a measurement array (MA) which includes: a plurality of illumination arrays () for exposing a measurement spot (MS) on a measurement object (MO) to illumination light in an actual illumination direction () in each case, and a pick-up array () for detecting the measurement light reflected by the measurement spot (MS) in an actual observation direction () and for converting it into preferably spectral reflection factors; and a controller for the illumination arrays and the pick-up array and for processing the electrical signals produced by the pick-up array. The controller is embodied to process the measured reflection factors on the basis of a correction model, such that distortions in the measurement values as compared to nominal illumination and/or observation directions, caused by angular errors in the illumination arrays and/or the pick-up array, are corrected.

Colour measurement method and colour measurement device

A color measurement device includes a measurement array (MA) which includes: a plurality of illumination arrays () for exposing a measurement spot (MS) on a measurement object (MO) to illumination light in an actual illumination direction () in each case, and a pick-up array () for detecting the measurement light reflected by the measurement spot (MS) in an actual observation direction () and for converting it into preferably spectral reflection factors; and a controller for the illumination arrays and the pick-up array and for processing the electrical signals produced by the pick-up array. The controller is embodied to process the measured reflection factors on the basis of a correction model, such that distortions in the measurement values as compared to nominal illumination and/or observation directions, caused by angular errors in the illumination arrays and/or the pick-up array, are corrected.

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Bubikon, Switzerland

Matthias Scheller Lichtenauer