Importance

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Abstract

This invention is a novel device that displays three-dimensional moving images featuring binocular disparity and motion parallax that can be seen simultaneously by multiple viewers in different positions without requiring headgear. This device comprises: longitudinal light-guiding members that rotate around their longitudinal axes; and light-emitting members inside, or attached to, each longitudinal light-guiding member. Changes in the content of light rays from the light-emitting members are coordinated with changes in the directions of these light rays so that viewers in different positions can see appropriate three-dimensional images. Advantageous features include: no headgear required, allows multiple viewers, high image resolution, avoids pseudoscopic images, offers wide viewing range, scalable to large size displays, multi-directional motion parallax, high light efficiency, avoids head tracking, avoids reciprocal motion, avoids fluid lag, avoids ghost-like images, and avoids use of coherent light.

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First Claim