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1 June 2016 Resolution of electro-holographic image
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The resolution of the reconstructed image from a hologram displayed on a DMD is measured with the light field images along the propagation direction of the reconstructed image. The light field images reveal that a point and line image suffers a strong astigmatism but the line focusing distance differences for lines with different directions. This will be astigmatism too. The focusing distance of the reconstructed image is shorter than that of the object. The two lines in transverse direction are resolved when the gap between them is around 16 pixels of the DMD’s in use. However, the depth direction is difficult to estimate due to the depth of focus of each line. Due to the astigmatism, the reconstructed image of a square appears as a rectangle or a rhombus.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jung-Young Son, Oleksii Chernyshov, Hyoung Lee, Beom-Ryeol Lee, and Min-Chul Park "Resolution of electro-holographic image", Proc. SPIE 9867, Three-Dimensional Imaging, Visualization, and Display 2016, 98670G (1 June 2016);


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