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Research Paper

Curr. Opt. Photon. 2023; 7(2): 183-190

Published online April 25, 2023 https://doi.org/10.3807/COPP.2023.7.2.183

Copyright © Optical Society of Korea.

A Wide-field-of-view Table-ornament Display Using Electronic Holography

Daerak Heo, Hosung Jeon, Sungjin Lim, Joonku Hahn

School of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Korea

Corresponding author: *jhahn@knu.ac.kr, ORCID 0000-0002-5038-7253

Received: December 30, 2022; Revised: March 14, 2023; Accepted: March 14, 2023

Abstract

Three-dimensional (3D) displays provide a significant advantage over traditional 2D displays by offering realistic images, and table-style displays in particular are ideal for generating 3D images that appear to float above a table. These systems are based on multiview displays, and are typically operated using temporal or spatial multiplexing methods to expand the viewing zone (VZ). The VZ is an expanded space that results from merging the sub-viewing zones (SVZs) from which an individual view is made. To increase the viewing angle, many SVZs are usually required. In this paper, we propose a table-ornament electronic holographic display that utilizes 3f parabolic mirrors. In holography, the VZ is not simply expanded but synthesized from SVZs to implement continuous motion parallax. Our proposed system is small enough to be applied as a table ornament, in contrast to traditional tabletop displays that are large and not easily portable. By combining multiview and holographic technologies, our system achieves continuous motion parallax. Specifically, our system projects 340 views using a time-multiplexing method over a range of 240 degrees.

Keywords: Electronic holography, High-speed scanner, Tabletop displays, Three-dimensional display, Viewing zone

OCIS codes: (090.2870) Holographic display; (100.6890) Three-dimensional image processing; (120.5800) Scanners; (220.4830) Systems design; (330.1400) Vision-binocular and stereopsis

Optical Society of Korea

Current Optics
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