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COARSE PINHOLE ARRAY FOR RECORDING IMPROVED REDUNDANT HOLOGRAMS
COARSE PINHOLE ARRAY FOR RECORDING IMPROVED REDUNDANT HOLOGRAMS
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机译:粗针孔阵列,用于记录改进的冗余全息图
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摘要
The use of a redundancy means including a pinhole array having a ratio of the distance between adjacent pinholes to the maximum linear dimension of a pinhole of at least 30 not only provides high effective redundancy, but the spatial signal-to-noise ratio in the reconstructed image of a recorded hologram recorded with such a pinhole array and played back with coherent wave energy is significantly higher than heretofore obtainable, particularly when less than ideal optic elements are employed in the recording system.
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