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Proceedings Paper

Mechanical and optical behavior of a tunable liquid lens using a variable cross section membrane: modeling results
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Paper Abstract

A lens containing a liquid medium and having at least one elastic membrane as one of its components is known as an elastic membrane lens (EML). The elastic membrane may have a constant or variable thickness. The optical properties of the EML change by modifying the profile of its elastic membrane(s). The EML formed of elastic constant thickness membrane(s) have been studied extensively. However, EML information using elastic membrane of variable thickness is limited. In this work, we present simulation results of the mechanical and optical behavior of two EML with variable thickness membranes (convex-plane membranes). The profile of its surfaces were modified by liquid medium volume increases. The model of the convex-plane membranes, as well as the simulation of its mechanical behavior, were performed using Solidworks® software; and surface’s points of the deformed elastic lens were obtained. Experimental stress-strain data, obtained from a silicone rubber simple tensile test, according to ASTM D638 norm, were used in the simulation. Algebraic expressions, (Schwarzschild formula, up to four deformation coefficients, in a cylindrical coordinate system (r, z)), of the meridional profiles of the first and second surfaces of the deformed convex-plane membranes, were obtained using the results from Solidworks® and a program in the software Mathematica®. The optical performance of the EML was obtained by simulation using the software OSLO® and the algebraic expressions obtained in Mathematica®.

Paper Details

Date Published: 7 March 2016
PDF: 14 pages
Proc. SPIE 9699, Optics and Biophotonics in Low-Resource Settings II, 969908 (7 March 2016); doi: 10.1117/12.2207360
Show Author Affiliations
Mario Carlos Flores-Bustamante, Ctr. de Investigaciones en Óptica (Mexico)
Martha Rosete-Aguilar, Univ. Nacional Autónoma de México (Mexico)
Sergio Calixto, Ctr. de Investigaciones en Óptica (Mexico)

Published in SPIE Proceedings Vol. 9699:
Optics and Biophotonics in Low-Resource Settings II
David Levitz; Aydogan Ozcan; David Erickson, Editor(s)

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