The invention relates to an arrangement for the incoherent zone-structured Fourier analysis of optically representable information for the purpose of classifying objects. It can be used in biology, medicine and environmental protection for assessing samples and preparations as well as in robotics for sorting and selecting processes. According to the invention, the zone-structured measured values are determined at parallel times with a more favourable energy balance and more quickly by means of a locally incoherently radiating surface (41) of fixed shape and its imaging via an image converter, bearing information (11) on an arrangement of sensor elements (51), which are fixed as desired in number, shape and position, by integration over areas which are formed by folding the geometry of the radiating surface (41) and of the individual sensor elements (51). <IMAGE>
ARRANGEMENT FOR THE INCOHERENT ZONE-STRUCTURED FOURIER ANALYSIS OF OPTICALLY REPRESENTABLE INFORMATION