title: A scalable diffraction-based scanning 3D colour video display as demonstrated by using tiled gratings and a vertical diffuser.
abstract: 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.
authors.affiliation: Department of Engineering, Centre for Photonic Devices and Sensors, University of Cambridge, 9 JJ Thomson Avenue, Cambridge, CB3 0FA, U. K.
authors.forename: Jia
authors.initials: J
authors.lastname: Jia
authors.affiliation: Department of Engineering, Centre for Photonic Devices and Sensors, University of Cambridge, 9 JJ Thomson Avenue, Cambridge, CB3 0FA, U. K.
authors.forename: Jhensi
authors.initials: J
authors.lastname: Chen
authors.affiliation: Huawei Technologies Co. Ltd, Huawei Industrial Base, Bantian Longgang, Shenzhen, Guangdong, 518129, P. R. China.
authors.forename: Jun
authors.initials: J
authors.lastname: Yao
authors.affiliation: Department of Engineering, Centre for Photonic Devices and Sensors, University of Cambridge, 9 JJ Thomson Avenue, Cambridge, CB3 0FA, U. K. dpc31@cam.ac.uk.
authors.forename: Daping
authors.initials: D
authors.lastname: Chu