Abstract

We developed an electroholography unit, which consists of a special-purpose computational chip for holography and a reflective liquid-crystal display (LCD) panel, for a three-dimensional (3D) display. The special-purpose chip can compute a computer-generated hologram of 800�?600 grids in size from a 3D object consisting of approximately 400 points in approximately 0.15 seconds. The pixel pitch and resolution of the LCD panel are 12 μm and 800�?600 grids, respectively. We implemented the special purpose chip and LCD panel on a printed circuit board of approximately 28cm�?13cm in size. After the calculation, the computer-generated hologram produced by the special-purpose chip is displayed on the LCD panel. When we illuminate a reference light to the LCD panel, we can observe a 3D animation of approximately 3cm�?3cm�?3cm in size. In the present paper, we report the electroholographic display unit together with a simple 3D display system.

© 2005 Optical Society of America

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References

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ApJ (1)

J.Makino, M.Taiji, T.Ebisuzaki and D.Sugimoto, �??GRAPE-4: A Massively Parallel Special-Purpose Computer for Collisional N-Body Simulations,�?? ApJ 480, 432 (1997).
[CrossRef]

Appl. Opt. (1)

Comput. Phys. Commun. (3)

T.Ito, T.Yabe, M.Okazaki and M.Yanagi, �??Special-purpose computer HORN-1 for reconstruction of virtual image in three dimensions,�?? Comput. Phys. Commun. 82, 104�??110 (1994).

T.Ito, H.Eldeib, K.Yoshida, S.Takahashi, T.Yabe and T.Kunugi, �??Special-purpose computer for holography, HORN-2,�?? Comput. Phys. Commun. 93, 13�??20 (1996).

T.Shimobaba, S.Hishinuma and T.Ito, �??Special-Purpose Computer for Holography HORN-4 with recurrence algorithm,�?? Comput. Phys. Commun. 148/2, pp. 160�??170 (2002).

J. Electronic Imaging (1)

M.Lucente, �??Interactive Computation of Holograms Using a Look-Up Table,�?? J. Electronic Imaging 2-1, pp. 28�??34 (1993).

Opt. Express (1)

Opt. Lett. (1)

Proc. SPIE (1)

H.Yoshikawa, S.Iwase and T.Oneda, �??Fast Computation of Fresnel Holograms employing Difference,�?? Proc. SPIE 3956, pp. 48�??55 (2000).

Proc.SPIE (2)

S.A.Benton, �??Experiments in holographic video imaging,�?? Proc.SPIE Vol.IS# 08, 247-267 (1991).

K.Maeno, N.Fukaya, O.Nishikawa, K.Sato and T.Honda, �??ELECTRO-HOLOGRAPHIC display using 15MEGA pixels LCD,�?? Proc.SPIE 2652, 15�??13 (1996).

Other (1)

M.Lucente, �??Diffraction-Specific Fringe Computation for Electro-Holography,�?? Ph. D. Thesis Dept. of Electrical Engineering and Computer Science, Massachusetts Institute of Technology (1994).

Supplementary Material (2)

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