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Background In this paper, a liquid progressive multifocal lens with solid-liquid structure is demonstrated, which mainly consists of two elastic polydimethylsiloxane (PDMS) membranes, a solid substrate and liquid. Methods To realize the adjustment of the focuses progressively, the thickness of one of the membrane is designed non-uniform. By controlling the liquid pressure working on the membranes,...
The purpose of this study is to design and fabricate a liquid-filled progressive multifocal lens, which consists of a solid plate, two elastic membranes and liquid. Through changing the volume of the liquid in the chamber of lens one can continuously change the curvature of the membrane which results in a change of focal length at different place of the lens. Finite element analysis is employed to...
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