FIELD: optical electronic systems. SUBSTANCE: device has source of radiation of complex spectral composition. It also includes optical system, radiation recording device and analysis unit positioned in succession in direction of radiation reflected from object being analyzed. Optical system is made as two linear polarizers between which at least one linear or circular phase plate with phase shift variable in plane perpendicular to system optical axis is positioned. Recording unit is made in the form of single- or two-dimensional matrix of photoreceivers. EFFECT: enhanced accuracy and stability of identification. 1 tbl, 10 dwg
