| 摘要 |
FIELD: optoelectronic locks, applicable for protection of rooms, storages, instruments, mechanisms and other objects of unauthorized access. SUBSTANCE: optoelectronic lock uses optically integrated optical radiation source, optical key and N photodetectors; the outputs of the photodetectors are connected to the inputs of the comparison device, and the output of the comparison device is connected to the actuator. The radiation source is made in the form of N single radiators of the infrared wave band installed in the ducts of the first plate, the photodetectors are installed in the ducts of the second plate, the number of ducts S in each plate exceeds or equals N, and the key is made in the form of a plate of material that is opaque for the infrared radiation wave band with through holes, the number of holes R is less than N, and the plate with holes is placed between two plates of material, whose transmission factor for the infrared wave band is higher than that for the visible radiation band. EFFECT: reduced labour content and cost of lock manufacture, enhanced secrecy and efficiency of use of radiation source energy. |
