Multi-aperture imaging for flat cameras

Carles, G. and Harvey, A. R. (2020) Multi-aperture imaging for flat cameras. Optics Letters, 45(22), pp. 6182-6185. (doi: 10.1364/OL.405702) (PMID:33186945)

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227547.pdf - Accepted Version



Imaging with high angular resolution requires large apertures and long focal lengths. This has prevented the integration of telephoto lenses into thin devices such as modern mobile phones. We report a camera module employing multiple rotated rectangular apertures and folding of the optical system into the plane of the camera, enabling an order-of-magnitude reduction in depth compared to traditional telephoto lenses. Multiple images are fused in the frequency domain to yield a single high-resolution image equivalent to that yielded by a single circular aperture. The diameter of this equivalent aperture may be several times wider than the depth of the camera module. We propose two architectures and present illustrative optical designs to demonstrate the concept. Simulations of raytraced image acquisition and computational image reconstruction demonstrate the potential for high-quality, high-resolution imaging from thin, flat lens modules.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Carles Santacana, Dr Guillem and Harvey, Professor Andy
Authors: Carles, G., and Harvey, A. R.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Optics Letters
Publisher:Optical Society of America
ISSN (Online):1539-4794
Published Online:05 October 2020
Copyright Holders:Copyright © 2020 Optical Society of America
First Published:First published in Optics Letters 45(22): 6182-6185
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
173569Seeing within extended volumes and 3D structures: 3D imaging and applicationsGuillem Carles SantacanaLeverhulme Trust (LEVERHUL)ECF-2016-757P&S - Physics & Astronomy