Patent ID: 6028621
Filing Date: 2000-02-22
Classification: G03H

Abstract:
A method forming and reproducing a three-dimensional image of an object, wherein to form a three-dimensional image, the object is illuminated by formation radiation an interference pattern is formed and recorded, the spatial positions and directions of beams from the object are registered, and the beam intensities from the object are registered by a photosensitive cell, and wherein to reproduce a three-dimensional image, the interference pattern is illuminated by reproduction radiation and the beams are extracted, the intensities, spatial positions, and directions of which correspond to the intensities, spatial positions, and directions of the beams registered in recording the interference pattern and the set of which corresponds to the three-dimensional image, differing in that:to form a three-dimensional image, spatial filtration of the beams of different directions from the object is carried out along two preset independent angular coordinated corresponding to those directions, using the first interference structure designed to allow interference to be performed with the amplitudes divided, thereby forming the interference pattern;the spatial positions and directions of the beams from the object are registered jointly by the first interference structure and the photosensitive cell; andto reproduce a three-dimensional image, when the interference pattern is illuminated by reproduction radiation, illuminating the first interference structure or a second interference structure, which is designed to allow interference to be performed with the amplitudes divided, wherein the first and second interference structures are optically coupled to the interference pattern;wherein a principle of spatial filtration of the second interference structure corresponds to a principle of spatial filtration of the first interference structure, and a scale of the second interference structure corresponds to a scale of the illuminated interference pattern.