PROCEDE ET DISPOSITIF D'ENREGISTREMENT D'INFORMATION SUR FILM

摘要

A method and apparatus for recording intelligence on a moving sheet such as a light sensitive strip. The data is modulated into a coherent light reference or a signal beam of a holographic recording system while one of the beams is altered in angle for each pass across the recording strip to record a series of holograms, each adjacent series on the strip having a spatial frequency different from the next wherein overlap will not interfere with readout which isolates each frequency in turn.