Explicit computational model of dielectric elastomeric lenses

Abstract

Deformable lenses have many advantages over traditional lens assemblies in respect of compactness, cost benefit, efficiency, and flexibility. We propose a computational model based on the nonlinear elasticity to characterize the performance of dielectric elastomeric lenses in terms of the focal length variation with respect to the actuation voltage, with theoretical predictions fitting well with experimental data. This model can also be used to predict the relationship between the maximum focal length change and parameters of the lenses including geometry and the internal liquid volume. It is expected that our work could provide insight into designing this particular type of lens for experimental researchers in the field of tunable lenses.