A device to compensate for distortion in target location in a visual system 5 wherein said binary digital comparator means is adapted to compare {HEAD ~ target raster time} with {TAIL ~ aiming point time}, so that said one signal indicates that there is a coincidence between said first and said second signals 
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A device to compensate for distortion in target location in a visual system 5 wherein said binary digital comparator means is adapted to compare { HEAD ~ target raster time } with { TAIL ~ aiming point time } , so that said one signal indicates that there is a coincidence between said first and said second signals
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH