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Proceedings Paper

128-view autostereoscopic display
Author(s): Junejei Huang; Yuchang Wang
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Paper Abstract

A 128-view auto-stereoscopic display using laser-scan and angle-magnifying screen is proposed. On the exit pupil of front projection lens, 8 spots of laser-scanning are provided. The exit pupil of the rear projection lens is doubled by two aperture-relay lenses and 8 spots of laser-scanning are doubled to 16 spots. The angle-magnifying screen comprises the main part of double-lenticular and the attaching part of micro-deflector. With the micro-deflector, angles formed by the laser scanning are deflected into eight angle ranges. With the double-lenticular, eight angle ranges incident into the screen are magnified into a large field of view for the observer. The laser scanning is realized by the vibration of Galvano-mirror that synchronizing with the frame rate of the DMD. For one cycle of vibration by the Galvo-mirror, 16 steps of reflections happen on going and returning paths. For each viewing position, 48 viewing per second are provided. The micro-deflector part comprises the (-4, +4) vertical micro-deflector and the (-1, -1, +1, +3) 45° micro-deflector. Each elements of the micro-deflector are aligned with the images of the pixels that come from the DMD. When a scanning of 16 spots passes different deflecting elements that cover 8 different pixels, the scanning is deflected to eight angle ranges and 128 partitioned viewing zones are formed in the observer plane.

Paper Details

Date Published: 3 September 2015
PDF: 6 pages
Proc. SPIE 9579, Novel Optical Systems Design and Optimization XVIII, 95790M (3 September 2015); doi: 10.1117/12.2185966
Show Author Affiliations
Junejei Huang, Delta Electronics, Inc. (Taiwan)
Yuchang Wang, Delta Electronics, Inc. (Taiwan)


Published in SPIE Proceedings Vol. 9579:
Novel Optical Systems Design and Optimization XVIII
G. Groot Gregory; Arthur J. Davis; Cornelius F. Hahlweg, Editor(s)

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