Static Volumetric Three-Dimensional Display

被引:43
|
作者
Refai, Hakki H. [1 ]
机构
[1] 3DIcon Corp, Tulsa, OK 74136 USA
来源
JOURNAL OF DISPLAY TECHNOLOGY | 2009年 / 5卷 / 10期
关键词
Three-dimensional (3D) displays; 3D; volumetric; digital micro-mirror device; crystal; TFTS; upconversion;
D O I
10.1109/JDT.2009.2027911
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We present here the development of a volumetric display based on the two-frequency, two-step upconversion technique using novel techniques for addressing the imaging volume. Two 1024 x 768 digital micromirror displays, driven by 30-W lasers at 1532 and 850 nm are utilized to generate fast scanning of the image volume in a 17 mm x 17 mm x 60 mm 2% erbium-doped lithium yttrium fluoride (YLF) crystal. Experimentally, images at 532 nm were created at 30 (frames) x 1024 x 768 resolution, resulting in almost 23 million voxels, at 500 frames/s, significantly higher than that obtained with three-dimensional (3D) raster scanning (frame is 2D cross-sectional plane of the 3D image). Imaging optics modified from projector systems and fiber-optically coupled to the source, combined with custom designed software for converting two-dimensional (2D) rendering of volumetric images into control signals for the digital micromirror displays allow single-color image generation with no flicker and natural depth cues. Improvements in optical power efficiency and the speed of digital micromirror display controller boards are needed for the system to reach its full potential. The resulting system has the potential to increase resolution to nearly 800 million voxels without viewpoint obstruction and expand to three-color imagery.
引用
收藏
页码:391 / 397
页数:7
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