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Proceedings Paper

Wide-viewing angle three-dimensional display based on the ray reconstruction method using multiple micro-projectors
Author(s): Hideya Takahashi; Kenta Hirooka; Kenji Yamada
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Paper Abstract

We propose an omnidirectional three-dimensional (3D) display system. This is a tool for communication around a 3D image among a small number of people. This 3D display system consists of multiple basic 3D display units. The basic unit consists of a micro-projector, a lenticular lens array sheet, and a cylindrical lens. In this basic unit, since a screen is not used, the light rays from a micro-projector pass through a lenticular lens array sheet and observed directly. Thus, the spatial density distribution of projected light rays is partial. To average the spatial density of projected light rays, we use a cylindrical lens. To increase the viewing angle, we aligned multiple basic units in a circle, and displayed 3D images at the center of the circle. To verify the effectiveness of the proposed 3D display, we constructed the prototype system. This prototype consists of 8 basic units. They are aligned 18-degree apart in a circle and the radius is 95 mm. The maximum size of displayed 3D images is 35 mm x 40 mm x 35 mm. The viewing angle of a 3D image is 124-degree. This paper describes the principle of proposed 3D display system, and also describes the experimental results.

Paper Details

Date Published: 27 February 2012
PDF: 6 pages
Proc. SPIE 8288, Stereoscopic Displays and Applications XXIII, 828824 (27 February 2012); doi: 10.1117/12.907254
Show Author Affiliations
Hideya Takahashi, Osaka City Univ. (Japan)
Kenta Hirooka, Osaka City Univ. (Japan)
Kenji Yamada, Osaka Univ. (Japan)

Published in SPIE Proceedings Vol. 8288:
Stereoscopic Displays and Applications XXIII
Andrew J. Woods; Nicolas S. Holliman; Gregg E. Favalora, Editor(s)

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