Colorimetric machine selection granular materials.

The invention relates to a machine COLOR GRADING GRAVEL MATERIALS (1) OPTICALLY DETECTING RAW MATERIAL BEANS (G) FALLING ALONG A PATH substantially fixed (A) AND BEANS SORTING INADEQUATE FOR YOUR COLOR. An optical (21; 230) DETECTOR INSTALLED THEREFOR COMPRISING A CONDENSER (9; 90) LENS various filters OPTICAL (10A, 10B; 100A, 100B, 100C) and various sensors PHOTORECEPTORS (12A, 13B; 120A, 120B, 120C ) FOR THE FILTERS AND MAY DETECT multiwavelength. Photoreceptors (12A, 13B; 120A, 120B, 120C) SENSORS ARE IN SIDEWAYS CONTIGUOUS plane itself and form a single unitary body, DO NOT REQUIRE ADJUSTMENT position between photoreceptors and downsize PERMIT SYSTEM photodetector. Between the condenser lens (9; 90) and PHOTORECEPTORS SENSORS INSTALLED A PRISM (11; 110). PRISMA HAS THE ROAD SURFACES Diffraction LIGHT (11A, 11B; 110A, 110B, 110C) in as many sensors photoreceptors, so these RECEIVING LIGHT FROM THE SAME POINT OF VIEW AND MAKE MAY color sorting. DIVIDING PLATES INSTALLED LIGHT DETECTED (15; 150A, 150B) between the adjacent surfaces Diffraction ROAD LIGHT IS AMONG THE PRISM AND ADJACENT photoreceptor SENSORS FOR IMPROVING THE ACCURACY OF OPTICAL SENSING.