CUED Publications database

Imaging through a projection screen using bi-stable switchable diffusive photon sieves

Yöntem, AÖ and Li, J and Chu, D (2018) Imaging through a projection screen using bi-stable switchable diffusive photon sieves. Optics Express, 26. pp. 10162-10170.

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Abstract

c 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. We designed and demonstrated a liquid crystal (LC) photon sieve (PS) device which can be integrated on a conventional diffusive projection screen and switched to record images. The device fabrication method and assembly of it by using Smectic A (SmA) LC material is also presented. In the PS state, the device comprises diffusive elements, which simultaneously allow to image the scene in front of the device on a camera sensor behind itself and display another image projected onto the device. The image captured using the PS has acceptable visual quality. The projected images, from an external picture source, on the diffusive elements can be observed with a quality comparable to the full scattering state. The projected images are observed with almost no detectable features of the device at the observation distance. The device offers a built-in solution for eye-to-eye video conferencing applications.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Photonics
Depositing User: Cron Job
Date Deposited: 01 May 2018 02:05
Last Modified: 25 Feb 2021 07:19
DOI: 10.1364/OE.26.010162