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Laser‐based multi‐user 3‐D display
Author(s) -
Surman Phil,
Sexton Ian,
Hopf Klaus,
Lee Wing Kai,
Neumann Frank,
Buckley Edward,
Jones Graham,
Corbett Alex,
Bates Richard,
Talukdar Sumanta
Publication year - 2008
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/1.2953481
Subject(s) - backlight , autostereoscopy , computer science , stereoscopy , projector , liquid crystal display , computer vision , computer graphics (images) , artificial intelligence , stereo display , holographic display , display device , rgb color model , holography , pixel , laser , viewing angle , eyewear , multiplexing , optics , physics , telecommunications , operating system
— The development of a multi‐user stereoscopic display that does not require the use of special glasses (autostereoscopic), and that enables a large degree of freedom of viewer movement and requires only the minimum amount of information (a stereo pair) for the displays described. The optics comprise an RGB holographic laser projector that is controlled by the output of a multi‐target head‐position head tracker, an optical assembly that converts the projector output into steerable exit pupils, and a screen assembly comprising a single liquid‐crystal display (LCD) and image multiplexing screen. A stereo image pair is produced on the LCD by simultaneously displaying left and right images on alternate rows of pixels. Novel steering optics that replace the conventional backlight are used to direct viewing regions, referred to as exit pupils, to the appropriate viewers' eyes. The results obtained from the first version of the display, where the illumination source consists of several thousand white LEDs, are given and the current status of the latest prototype being constructed on the basis of these results is described. The work indicates that a laser‐based head‐tracking display can provide the basis for the next generation of 3‐D display.