| 摘要 |
FIELD: building. ^ SUBSTANCE: invention can be used in various areas for protection against unauthorised access to databases. The device for optical input of an access code to a door lock operating mechanism includes the console containing a tiny source of optical emission, an energy source and an optical receiver connected with the controller of a door lock operating mechanism. The console contains not less than two tiny sources of optical emission, being capable of impacting on separate optical receivers or their groups. Also, the console contains a control facility managing operating mode of tiny sources of optical emission. Tiny sources of optical emission are placed on distances from each other not exceeding their trebled cross-section sizes. ^ EFFECT: increase in reliability of the lock, simplification of design and increase of amenity of operation. ^ 3 cl, 3 dwg |
