Verfahren zur Aufzeichnung von Interferenzmustern

摘要

Interference pattern recording of large objects or scenes having dimensions exceeding the coherence lengths of available light sources is accomplished. The recording is performed by illuminating the storage medium with a plurality of reference beams all of which are collinear and the scattered radiation from the object. A path length difference not exceeding and preferably slightly less than the coherence length of the radiation sources is introduced into each successive reference beam.