Powering electronic contact lenses : current achievements, challenges, and perspectives

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Powering electronic contact lenses : current achievements, challenges, and perspectives

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Publication Article, peer reviewed scientific
Title Powering electronic contact lenses : current achievements, challenges, and perspectives
Author(s) Blum, Zoltan ; Pankratov, Dmitry ; Shleev, Sergey
Date 2014
English abstract
The recent media hoopla regarding ‘smart’, ‘bionic’, or more appropriately, electronically augmented contact lenses is analyzed in terms of real achievements coupled to the critically important issue of power management. Not depending on the availability, currently or in the near future, of to-the-purpose discrete or integrated electronic devices, power management, including delivery/supply and temporal sustainability, will be an outstanding issue if present-day technology should remain the only option. Radically different approaches have been taken to deliver electric power to electronically augmented contact lenses, that is, ranging from quite simplistic wire-based delivery assemblies, grossly inappropriate for end users, to various elaborate wireless designs drawing on over-the-air power delivery, as well as solar and electrochemical cells. Nonetheless, given the complex restrictions offered by a contact lens, conventional, even state-of-the-art, power management technology is at an impasse, and to ensure a bright future for smart lenses, radical technological measures need to be taken. Bridging the conceptual gap between fuel cells and supercapacitors, an ingenious novel approach to on-lens power management is presented: a charge-storing fuel cell, or alternatively, a self-charging capacitor, that is, a hybrid electric power device.
DOI http://dx.doi.org/10.1586/17469899.2014.922873 (link to publisher's fulltext)
Publisher Expert Reviews
Host/Issue Expert Review of Ophthalmology;4
Volume 9
ISSN 1746-9902
Pages 269–273
Language eng (iso)
Subject(s) battery
electrical energy
electrochemical cell
fuel cell
hybrid electric power device
over-the-air electric power
smart contact lens
solar cell
supercapacitor
Sciences
Research Subject Categories::NATURAL SCIENCES
Handle http://hdl.handle.net/2043/18207 (link to this page)

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