Design, Manufacture, and Evaluation of Prototype Telescope Windows for Use as Low Vision Aids

Bourgenot, C., Courtial, J. , Cowie, E. , Girkin, J., Love, G., Robertson, D. and Young, L. (2017) Design, Manufacture, and Evaluation of Prototype Telescope Windows for Use as Low Vision Aids. In: SPIE Optics and Photonics Conference, San Diego, CA, USA, 06-10 Aug 2017, 103760I. ISBN 9781510612099 (doi: 10.1117/12.2272992)

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Pixellated Optics, a class of optical devices which preserve phase front continuity only over small sub areas of the device, allow for a range of uses that would not otherwise be possible. One potential use is as Low Vision Aids (LVAs), where they are hoped to combine the function and performance of existing devices with the size and comfort of conventional eyewear. For these devices a Generalised Confocal Lenslet Array (GCLA) is designed to magnify object space, creating the effect of traditional refracting telescope within a thin, planar device. By creating a device that is appreciably thinner than existing LVA telescopes it is hoped that the comfort for the wearer will be increased. We have developed a series of prototype GLCA-based devices to examine their real-world performance, focussing on the resolution, magnification and clarity of image attainable through the devices. It is hoped that these will form the basis for a future LVA devices. This development has required novel manufacturing techniques and a phased development approach centred on maximising performance. Presented here will be an overview of the development so far, alongside the performance of the latest devices.

Item Type:Conference Proceedings
Glasgow Author(s) Enlighten ID:Courtial, Dr Johannes and Cowie, Dr Euan
Authors: Bourgenot, C., Courtial, J., Cowie, E., Girkin, J., Love, G., Robertson, D., and Young, L.
College/School:College of Science and Engineering > School of Physics and Astronomy
Published Online:24 August 2017
Copyright Holders:Copyright © 2017 SPIE
First Published:First published in Proceedings of SPIE 10376: 103760I
Publisher Policy:Reproduced in accordance with the publisher copyright policy
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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
738201EPSRC DTP 16/17 and 17/18Mary Beth KneafseyEngineering and Physical Sciences Research Council (EPSRC)EP/N509668/1RSI - RESEARCH STRATEGY & INNOVATION
670991Telescope windows: low-vision scopes to cloaksJohannes CourtialEngineering and Physical Sciences Research Council (EPSRC)EP/M010724/1S&E P&A - PHYSICS & ASTRONOMY