A device for measuring the photometric and colorimetric characteristics of an object

摘要

The present invention is characterized in that the measurement lens 2 forming the Fourier transform 102 of the basic region 101 in the phase focal plane Fi and the sensor 4 formed by the detectors 4i, And a processing circuit (6) for measuring the photometric and colorimetric characteristics of the object, comprising: a transfer lens (3) for forming an image of the object; a stop (5) for defining an opening of the basic region (101); The measuring lens 2 for generating the Fourier transform 102 is associated with a visual field and comprises two optical means 2, 10 and a circular aperture of diameter d defined by the aperture 5, Due to the combination, it is possible to select an elliptical measurement area on the analyte 1 for any ray having an incident angle [theta] and an azimuthal angle [phi].