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Features of distribution of a brightness of Denisyuk's holograms

The method of hologram recording of Yuri. N. Denisyuk is remarkable because of its simplicity and excellent quality of a holographic image. However, distribution of brightness of the reconstructed image, as a rule, is non-uniform. In the top of a zone of observation such image is brighter, than in the bottom. In this report it is explained, that the reason of this effect is the polarization of a recording beam. Also the way of elimination of non-uniformity of distribution of brightness of the reconstructed image in a zone of observation is proposed.