PHOTOREAD-OUT FACILITY Russian patent published in 2004 - IPC

FIELD: authentication of banknotes and documents. SUBSTANCE: photoread-out facility can find use in equipment testing authenticity of bank notes and documents and allows technical result to be obtained in the form of uniform illumination of examined object. This result is achieved as facility incorporates pair of radiation sources. Each source faces first end of corresponding side light guide, side light guide being positioned on both sides of central light guide. Facility also has radiation detector facing one end of central light guide which other end faces illuminated section of tested object. Second ends of all side light guides are optically connected to central light guide at some distance from its second end and are placed at acute angle with direction to its first end at point of connection. Side surface of all light guide are fabricated diffusively reflecting in range of length of waves of all used radiations. EFFECT: obtainment of uniform illumination of examined object. 5 cl, 2 dwg