4 June 2003 Multicolor reflection hologram made from computer-generated master hologram
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We have reported that viewing angle of the computer-generated hologram can be expanded with lensless Fourier transform hologram. It, however, requires a laser to illuminate the CGH for reconstruction. In the previous paper, we have proposed that making the second hologram for white-light reconstruction. The reconstructed image from the first hologram is used as the object beam of the second hologram. The second hologram can be either transmission or reflection hologram, which depends on the direction of the reference beam. In this report, we extend this method to make multi-color reflection hologram. First, we calculate the master holograms for each elemental color. Then, the transfer hologram can be made from the master CGH with multimple exposure with either changing wavelength or psuedo-color process. In the experimental result, we obtain multi-color full-parallax computer-generated hologram with 20 degrees of viewing angle and 10 mm × 7.6 mm image size.
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Hiroshi Yoshikawa, Kazunobu Takei, Makoto Tachinami, "Multicolor reflection hologram made from computer-generated master hologram", Proc. SPIE 5005, Practical Holography XVII and Holographic Materials IX, (4 June 2003); doi: 10.1117/12.473856; https://doi.org/10.1117/12.473856

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