In this article we present the first adaptive microfluidic PDMS-lens system equipped with an integrated piezoelectric pumping actuator. The system is produced in a highly streamlined fabrication process, which consists of casting via a hot embossing machine and the subsequent oxygen bonding of the layers. With an optimized piezo actuator we achieved focal length ranges from 30 to 500 mm at a voltage from -9 to 44 V. We demonstrate that the lens resolution is crucially dependent on the thickness of the lens membrane. For an optimum thickness of 230 μm at 5 mm diameter the lenses achieve a resolution of 120 linepairs/mm at a contrast of 50%.
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