OPTICAL SEAL Russian patent published in 2004 - IPC

FIELD: ironmongery. SUBSTANCE: given optical seal-lock includes information element with unique optical image, body comprising two parts fixed relative one another and housing sections of ends of coupling unit connected to guarded object. At least one part is made of translucent material. Members for uniform installation of automatic unit reading optical image from information element are placed on surface of body. Seal is provided with additional information element. Sections of each part making up body, accessible to optical sounding radiation which structure is characterized by non-uniformities distributed at random and reflecting optical sounding radiation are utilized in the capacity of information elements. Interconnected sections of coupling unit are freely arranged in space of body. EFFECT: widened functional capabilities. 5 cl, 5 dwg