Hand-held measurement device for capturing the visual impression of a measurement object

• Main Authors: PETER EHBETS, GUIDO NIEDERER, JORG HUNKEMEIER, BEAT FRICK, MARK WEGMULLER
• Format: Patent
• Language: Chinese; English
• Published: 21.05.2014
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

A hand-held measurement device for appearance analyses includes a measurement array which comprises a number of illumination means(21-27) for applying illumination light to a measurement field in at least three illumination directions and a number of pick-up means(31-33) for capturing the measurement light in at least one observation direction. The illumination directions and the observation directions lie in a common system plane. At least one pick-up means is embodied to spectrally gauge the measurement light in a locally integral way, and at least one imaging pick-up means is embodied to gauge the measurement light in terms of color in a locally resolved way. The spectral pick-up means(32) and the locally resolving pick-up means(33) are arranged such that they receive the measurement light reflected by the measurement field under the same observation conditions and in particular from the same observation direction.