CUED Publications database

Tuneable bioinspired lens.

Charmet, J and Barton, R and Oyen, M (2015) Tuneable bioinspired lens. Bioinspir Biomim, 10. 046004-.

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Bioinspired lenses that rely on changes of curvature to achieve focus are interesting candidates for miniaturized tuneable lenses as they require fewer mechanical moving parts compared to their conventional counter-parts. The lens described in this manuscript closely mimics the design and actuation principle of the vertebrate lens. It consists of a liquid lens encapsulated in a transparent polymer membrane. Application of a radial strain changes the curvature of the lens thereby changing its focal length. The unstrained lens has a focal length of 50 mm, which rises to a value of 100 mm at a maximum radial strain of 0.67%. This range compares favourably to both biological lenses and other published examples of biomimetic lenses. Finally we point out a few routes to improve the quality of the lens and expand its focal length range.

Item Type: Article
Uncontrolled Keywords: Animals Biomimetic Materials Biomimetics Equipment Design Equipment Failure Analysis Humans Lens, Crystalline Lenses Light Scattering, Radiation
Divisions: Div C > Biomechanics
Div C > Materials Engineering
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:33
Last Modified: 22 May 2018 07:16