Patent ID: 7633614
Filing Date: 2009-12-15
Classification: G01M,G01N,G07F

Abstract:
1. A device for detecting characteristics of a medium that is wholly or partly transparent, wherein said medium is placeable in an observation area in a light path extending between a light source and a light detector, wherein said medium is illuminated by the light source in the observation area, wherein at least one light-directing optical element is arranged in connection with the observation area, and wherein the light detector is adapted for determination of characteristics of said medium, wherein the detector is adapted to capture light transmitted only through said medium when the medium is in said observation area, the medium thus deflecting and changing direction of radiation of such light in the observation area; wherein a processor is connected to the detector and configured to determine type of material, type of substance and/or a composition of types of materials or types of substances of said medium through spectrometry of said deflected light as received by the light detector, and wherein in the light path from the light source to the detector there is located at least one wavelength-selective element which is incorporated in or is arranged in association with the operation of the light source or the detector.