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Open AccessArticle

3D Display System Based on Spherical Wave Field Synthesis

1
Bremer Institut für angewandte Strahltechnik GmbH (BIAS), Klagenfurter Strasse 5, 28359 Bremen, Germany
2
Department of Photonics, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
3
Faculty of Physics and Electrical Engineering, University of Bremen, 28359 Bremen, Germany
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(18), 3862; https://doi.org/10.3390/app9183862
Received: 15 August 2019 / Revised: 11 September 2019 / Accepted: 12 September 2019 / Published: 14 September 2019
(This article belongs to the Special Issue Holography, 3D Imaging and 3D Display)
We present a novel concept and first experimental results of a new type of 3D display, which is based on the synthesis of spherical waves. The setup comprises a lens array (LA) with apertures in the millimeter range and a liquid crystal display (LCD) panel. Each pixel of the LCD creates a spherical wave cutout that propagates towards the observer. During the displaying process, the curvature of the spherical waves is dynamically changed by either changing the distance between LA and LCD or by adapting the focal lengths of the lenses. Since the system, similar to holography, seeks to approximate the wavefront of a natural scene, it provides true depth information to the observer and therefore avoids any vergence–accommodation conflict (VAC). View Full-Text
Keywords: 3D imaging system; wave field synthesis; vergence–accommodation conflict; lens array; focus cue; light field display 3D imaging system; wave field synthesis; vergence–accommodation conflict; lens array; focus cue; light field display
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Falldorf, C.; Chou, P.-Y.; Prigge, D.; Bergmann, R.B. 3D Display System Based on Spherical Wave Field Synthesis. Appl. Sci. 2019, 9, 3862.

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