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Proceedings Paper

Multi-user autostereoscopic display based on direction-controlled illumination using a slanted cylindrical lens array
Author(s): Daisuke Miyazaki; Yui Hashimoto; Takahiro Toyota; Kenta Okoda; Tetsuro Okuyama; Toshikazu Ohtsuki; Akio Nishimura; Hiroyuki Yoshida
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Paper Abstract

This research aims to develop an auto-stereoscopic display, which satisfies the conditions required for practical use, such as, high resolution and large image size comparable to ordinary display devices for television, arbitrary viewing position, multiple viewer availability, suppression of nonuniform luminance distribution, and compact system configuration. In the proposed system, an image display unit is illuminated with a direction-controlled illumination unit, which consists of a spatially modulated parallel light source and a steering optical system. The steering optical system is constructed with a slanted cylindrical array and vertical diffusers. The direction-controlled illumination unit can control output position and horizontal angle of vertically diffused light. The light from the image display unit is controlled to form narrow exit pupil. A viewer can watch the image only when an eye is located at the exit pupil. Auto-stereoscopic view can be achieved by alternately switching the position of an exit pupil at viewer's both eyes, and alternately displaying parallax images. An experimental system was constructed to verify the proposed method. The experimental system consists of a LCD projector and Fresnel lenses for the direction-controlled illumination unit, and a 32 inch full-HD LCD for image display.

Paper Details

Date Published: 6 March 2014
PDF: 9 pages
Proc. SPIE 9011, Stereoscopic Displays and Applications XXV, 90111G (6 March 2014); doi: 10.1117/12.2042474
Show Author Affiliations
Daisuke Miyazaki, Osaka City Univ. (Japan)
Yui Hashimoto, Osaka City Univ. (Japan)
Takahiro Toyota, Panasonic Corp. (Japan)
Kenta Okoda, Osaka City Univ. (Japan)
Tetsuro Okuyama, Panasonic Corp. (Japan)
Toshikazu Ohtsuki, Panasonic Corp. (Japan)
Akio Nishimura, Panasonic Corp. (Japan)
Hiroyuki Yoshida, Panasonic Corp. (Japan)


Published in SPIE Proceedings Vol. 9011:
Stereoscopic Displays and Applications XXV
Andrew J. Woods; Nicolas S. Holliman; Gregg E. Favalora, Editor(s)

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