Spatial 3D display based on DMD and swept-volume technology

Jianfang Xing; Huajun Gong; Wenping Pan; Jian Yue; Chunlin Shen

doi:10.1117/12.900837

8 September 2011 Spatial 3D display based on DMD and swept-volume technology

Jianfang Xing, Huajun Gong, Wenping Pan, Jian Yue, Chunlin Shen

Proceedings Volume 8191, International Symposium on Photoelectronic Detection and Imaging 2011: Sensor and Micromachined Optical Device Technologies; 81911T (2011) https://doi.org/10.1117/12.900837
Event: International Symposium on Photoelectronic Detection and Imaging 2011, 2011, Beijing, China

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.

Citation Download Citation

Jianfang Xing, Huajun Gong, Wenping Pan, Jian Yue, and Chunlin Shen "Spatial 3D display based on DMD and swept-volume technology", Proc. SPIE 8191, International Symposium on Photoelectronic Detection and Imaging 2011: Sensor and Micromachined Optical Device Technologies, 81911T (8 September 2011); https://doi.org/10.1117/12.900837

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KEYWORDS

3D displays

3D image processing

Digital micromirror devices

Visualization

3D modeling

3D volumetric displays

3D vision

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