OPTICAL DATA PROCESSOR PROVIDING ALL RANGE TRACKING AND ALL RANGE FOCUSING

摘要

An optical data processor for Doppler radar information stored on a film uses a four-lens telescopic optical system to cause the azimuth target histories to come to focus on a plane surface where they can be recorded. To provide all range focus with this system, two of the lenses are cylindrical lenses to provide a two-lens telescopic system in the range dimension with different magnifications in the two dimensions. The input and output films are tilted with respect to the optical axis to provide all range focusing and all range tracking in the same output plane.