A scalable diffraction-based scanning 3D colour video display as demonstrated by using tiled gratings and a vertical diffuser
Nature Publishing Group
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Jia, J., Chen, J., Yao, J., & Chu, D. (2017). A scalable diffraction-based scanning 3D colour video display as demonstrated by using tiled gratings and a vertical diffuser. Scientific Reports, 7 (44656)https://doi.org/10.1038/srep44656
A high quality 3D display requires a high amount of optical information throughput, which needs an appropriate mechanism to distribute information in space uniformly and efficiently. This study proposes a front-viewing system which is capable of managing the required amount of information efficiently from a high bandwidth source and projecting 3D images with a decent size and a large viewing angle at video rate in full colour. It employs variable gratings to support a high bandwidth distribution. This concept is scalable and the system can be made compact in size. A horizontal parallax only (HPO) proof-of-concept system is demonstrated by projecting holographic images from a digital micro mirror device (DMD) through rotational tiled gratings before they are realised on a vertical diffuser for front-viewing.
This work was supported by Huawei Innovation Research Program FLAGSHIP (HIRP FLAGSHIP) project at University of Cambridge.
External DOI: https://doi.org/10.1038/srep44656
This record's URL: https://www.repository.cam.ac.uk/handle/1810/264026