Fig. 1.

Schematic design of the developed prototype of hyperspectral imaging system: 1 – lens hood (spacer), 2 – fiber ring illuminator delivering the broadband radiation from 50W halogen lamp, 3 – ring-shaped polarizer of illumination unit, 4 – camera polarizer; 5 – built-in diffuse reflectance standard (grey Spectralon – 50% reflection).