| 摘要 |
FIELD: optics. SUBSTANCE: opticoelectron system incorporates detector 6 of input radiation flux, threshold device 8 and commutator 7 connected in series, sensitive element 3 and former 4 of illumination signal connected in series, master unit 5 of minimization signal and unit 1 interrupting radiation flux and illumination control unit 2 of sensitive element positioned in front of sensitive element. Controlling input of unit 1 interrupting radiation flux is connected to output of threshold device 8 and input of illumination control unit 2 is connected through commutator 7 to output of former 4 of illumination signal or master unit 5 of minimization signal. Increased reliability is achieved in system exposed to action of high-power sources of detected radiation thanks to interruption of radiation flux when specified level is exceeded and to limitation of radiation flux falling on sensitive element immediately after decrease of input radiation flux to level of operation of threshold device. Additional effect due to reduced operation time is achieved by installation of unit interrupting radiation flux in converging beam of objective of opticoelectron system. EFFECT: increased reliability and reduced operation time. 1 cl, 2 dwgp
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