20 June 2017 High-resolution full-parallax computer-generated holographic stereogram created by e-beam technology
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Abstract
A high-resolution computer-generated stereogram for forming full-parallax three-dimensional (3-D) images is proposed. A full-parallax 3-D image is formed from 825 two-dimensional (2-D) projections and can be observed in a wide angular range. The stereogram is a reflective diffractive optical element (DOE) that consists of 50 × 50    μ m 2 hogels, where each hogel corresponds to one pixel of the 2-D frames. A phase-type kinoform is computed in every hogel by solving a nonlinear inverse problem. The DOE relief is fabricated using electron-beam technology with pixel size of 0.2 × 0.2    μ m 2 . The effectiveness of the technology developed is illustrated by photographs and a video of a real DOE under monochromatic light and under white light. The new high-resolution full-parallax stereograms can be used for protecting bank notes, documents, and ID cards against counterfeit.
© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
Alexander Goncharsky, Anton Goncharsky, Svyatoslav Durlevich, "High-resolution full-parallax computer-generated holographic stereogram created by e-beam technology," Optical Engineering 56(6), 063105 (20 June 2017). https://doi.org/10.1117/1.OE.56.6.063105 . Submission: Received: 17 March 2017; Accepted: 1 June 2017
Received: 17 March 2017; Accepted: 1 June 2017; Published: 20 June 2017
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