Optical EngineeringOn the possibility of the recording and reconstruction of three-dimensional images when using an extended reference source and a pseudo-deep hologram
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A number of points concerning display holography and a method of so-called pseudo-deep holograms are reviewed. The possibility of using the angular selectivity property of pseudo-deep holograms for 3-D image formation is investigated. The optical system characterized by the presence of an inclined hologram and a horizontal slit that filters the beams from an object and those from an extended reference source is considered. It is shown that the hologram recorded with the help of such a system is capable of reconstructing 3-D images while illuminated by an extended light source characterized by a distribution of phases different from those of the reference source. This record is referred to as a selectogram. The resolution of the image reconstructed by the selectogram is analyzed. The results of the recording and reconstruction of selectograms of a special 3-D arbitrary diffuse object are considered. It is noted that it is possible to record a selectogram using the radiation scattered by the object as the reference wave.