Three-dimensional floating display by a concave cylindrical mirror and rotational wedge prisms

Gilbae Park; Jonghyun Kim; Keehoon Hong; Byoungho Lee

doi:10.1117/12.909823

6 February 2012 Three-dimensional floating display by a concave cylindrical mirror and rotational wedge prisms

Gilbae Park, Jonghyun Kim, Keehoon Hong, Byoungho Lee

Proceedings Volume 8280, Advances in Display Technologies II; 82800C (2012) https://doi.org/10.1117/12.909823
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

We propose three-dimensional floating display which uses a concave cylindrical mirror (CCM), wedge prisms, and a digital micro-mirror device (DMD). Wedge prisms can make the direction of projected images tilt by a specific angle from the incident direction. In our system, wedge prisms are rotated to project images to whole direction of the cylindrical mirror. Projected images from the DMD projector are reflected and distorted by the CCM simultaneously. We generate inversely distorted images to correct the image distortions to display original images. As the wedge prisms rotate, the tilt angle in the longitudinal plane of the CCM rotates. This means that images from the DMD can be projected in any horizontal direction. Viewers can see 3D objects with horizontal parallax in any horizontal direction. The further explanation of the proposed system is provided, and the experimental results are also presented.

Citation Download Citation

Gilbae Park, Jonghyun Kim, Keehoon Hong, and Byoungho Lee "Three-dimensional floating display by a concave cylindrical mirror and rotational wedge prisms", Proc. SPIE 8280, Advances in Display Technologies II, 82800C (6 February 2012); https://doi.org/10.1117/12.909823

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