12 April 1995 New method of real-time holographic high-density storage of color images by monochromatic laser
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The multi-passage optical fiber faceplate, which has been successfully designed and made by us can exert direct effect on separating colors and encoding a transparent color film, so the encoded images will be sampled and compressed at the output end of the faceplate. Their coherent encoding images will be available when the three primary color images are written into a liquid crystal light valve (LCLV) and a laser beam is directed to read out these images through a polarizing beam splitter. Then, the read-out images will be transformed by a Fourier lens and recorded by a black-and-white film. Especially when the stored image is a color scene, preprocessing can be eliminated from the equipment proposed in this paper only by introducing a color CCD camera or an imaging system, coupled to the optical fiber faceplate's input end. The original color image can be also retrieved by the faceplate used in the opposite direction. The first-order diffractive image obtained from stored medium is written into the LCLV and a white light is directed to read out this image through a polarizing beam splitter, the read-out image should be accurately projected at the output end of the faceplate. These encoded images are colored by three primary color filters and transmitted to the input end of the faceplate. Thus, the stored original color image is retrieved.
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Tiequan Cai, Tiequan Cai, Hui Wang, Hui Wang, Yixing Tang, Yixing Tang, Weiming Jin, Weiming Jin, Yanqiao Xu, Yanqiao Xu, "New method of real-time holographic high-density storage of color images by monochromatic laser", Proc. SPIE 2406, Practical Holography IX, (12 April 1995); doi: 10.1117/12.206235; https://doi.org/10.1117/12.206235

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