Device for locating directive illuminators, applicable to panoramic detection of laser sources

摘要

1. Locating device for directive illuminators using a plurality of luminous radiation probes to cover a field of observation determined by successive elementary fields, the probes (CI to Cn) comprising optical reception means (Oj) to focus the radiation and to filter it within the exploited band, photodetection means (1) being provided to detect the focussed radiation, the device being characterized in that each probe (Cj) comprises means for the focussing and injection of light into an optical fiber and two optical fiber conductors (F1, F2) joined at one end to receive the radiation focussed by a reception optic (Oj) and to transmit it through their other ends coupled to the detection means (1), the two conductors having different lengths to produce shifted detected signals, and the length difference being different for each probe so that the time shift (alpha T) of the signals identifies the probe, the detection means feeding a processing circuit (2) proceeding by counting to identify said time shift and subsequently the corresponding elementary field.