The present invention relates to a device for the spectral measurement of objects in which the object is exposed to a wide-spectrum radiation. The rays reflected and emitted by the object are directed towards a receiving device so that the whole receiving device receives the radiation from the same spatial area. The radiation is then submitted to a spectral division, and the radiation reflected and emitted by the object is injected into a light guide through a lens as a non-clear-cut image. The radiation from the different spatial angles is then mixed in this light guide. After its output from the light guide, the radiation is submitted to a spectral filtration. In order to suppress the high resolution even further, a dispersion member and a light guiding block fitted with connection tabs are mounted before the light guide. The ends of the connection tabs are provided with filters and sensors.