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24 February 2010 Volumetric display using a roof mirror grid array
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Abstract
A volumetric display system using a roof mirror grid array (RMGA) is proposed. The RMGA consists of a two-dimensional array of dihedral corner reflectors and forms a real image at a plane-symmetric position. A two-dimensional image formed with a RMGA is moved at thigh speed by a mirror scanner. Cross-sectional images of a three-dimensional object are displayed in accordance with the position of the image plane. A volumetric image can be observed as a stack of the cross-sectional images by high-speed scanning. Image formation by a RMGA is free from aberrations. Moreover, a compact optical system can be constructed because a RMGA doesn't have a focal length. An experimental volumetric display system using a galvanometer mirror and a digital micromirror device was constructed. The formation of a three-dimensional image consisting of 1024 × 768 × 400 voxels is confirmed by the experimental system.
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Daisuke Miyazaki, Noboru Hirano, Yuuki Maeda, Keisuke Ohno, and Satoshi Maekawa "Volumetric display using a roof mirror grid array", Proc. SPIE 7524, Stereoscopic Displays and Applications XXI, 75240N (24 February 2010); https://doi.org/10.1117/12.840212
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