DEVICE FOR RECOGNIZING AND LOCATING LASER RADIATION SOURCES

摘要

The device for recognizing and locating laser radiation sources bas a radiation-sensitive detector arranged in the image field of an imaging optical system and an electronic signal evaluation unit connected to the detector. A cross grating is arranged between the laser radiation source and the optical system such that the diffraction orders of the cross grating are imaged on the detector. Coherent light sourc es generate, contrary to incoherent light sources, a regular pattern of punctiform light spots. The 0th order of this diffraction pattern will indicate the direction of the laser light source.