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Proceedings Paper

Spatial 3D display based on DMD and swept-volume technology
Author(s): Jianfang Xing; Huajun Gong; Wenping Pan; Jian Yue; Chunlin Shen
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Paper Abstract

Display devices play important roles in the interaction between human and digital world of computer. Building devices which can display 3-D images in true 3-D space has aroused researchers' concern for many years. In this paper, we develop a novel spatial display by projecting 2D profile slices of the 3-D models in rapid succession onto a synchronous rotating double bladed helical screen periodically. It is a high speed light-addressed system base on Texas Instruments TM(TI TM) Digital Mirror Device TM (DMD TM) technology, and high frame fresh rate is achieved by accurate control over DMD micro-mirrors. When the rotation frequency of the screen higher than critical flicker fusion frequency, the stroboscopic time-varying slices are fused into a whole flicker-free 3-D spatial imagery because of persistence of vision. The display generate volume-fill 3-D imagery consist of an array of voxels that can be seen hovering in the swept volume. The design and manufacturing of prototype is performed. It has a resolution of 1024x768x132 voxels at a volume refresh rate of 10 Hz. The 3-D imagery occupies real physical space about 203 cm3, each voxel scatter visible light from the position in which it appears. It provides full parallax, not only enable 3-D imagery to be viewed without any eye wears or headsets, but also support "look around" function. Different viewers from practically any orientation can see different sides of the imagery, as if people watch sculptures.

Paper Details

Date Published: 8 September 2011
PDF: 9 pages
Proc. SPIE 8191, International Symposium on Photoelectronic Detection and Imaging 2011: Sensor and Micromachined Optical Device Technologies, 81911T (8 September 2011); doi: 10.1117/12.900837
Show Author Affiliations
Jianfang Xing, Nanjing Univ. of Aeronautics and Astronautics (China)
Huajun Gong, Nanjing Univ. of Aeronautics and Astronautics (China)
Wenping Pan, Nanjing Univ. of Aeronautics and Astronautics (China)
Jian Yue, Nanjing Univ. of Aeronautics and Astronautics (China)
Chunlin Shen, Nanjing Univ. of Aeronautics and Astronautics (China)


Published in SPIE Proceedings Vol. 8191:
International Symposium on Photoelectronic Detection and Imaging 2011: Sensor and Micromachined Optical Device Technologies
Yuelin Wang; Huikai Xie; Yufeng Jin, Editor(s)

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