271570245 by Unknown

Author:Unknown
Language: eng
Format: epub

Figure The Gabor zone plate produces one virtual and one real image.

Figure The images can be well-separated by using an off-axis arrangement.

Finally, you must make a mental leap to adapt this picture to the case of the whole object in Figure Each point such as P on the object will produce its own zone plate in the emulsion, and the whole hologram that results will be a complicated collection of zone plates. There will be one from each point on the object and each will be different in detail from the others. When the hologram is illuminated with a reconstructing beam, real and virtual images will be produced of each of the points on the object In each image the reconstructed points will have proper spatial relationships with each other and so be fully three-dimensional. In addition points of various degrees of brightness in the object will yield zone plates with rings of various degrees of opacity alternating with various degrees of transparency. Therefore the reconstructed points will be seen with appropriate degrees of brightness. In short, realistic real and virtual images of the object will be reconstructed.

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