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We report on a thin zoom lens system using a compact design and an effective fabrication process for flat adaptive fluidic single chamber membrane lenses made of PDMS. The lenses consist of a ring shaped piezo bending actuator with a transparent silicone membrane in the center. A zoom ratio of Z = 1.42 is obtained using two lenses with a membrane diameter of 4 mm. The overall system thickness is only...
We compare the performance and optical quality of two types of adaptive fluidic silicone-membrane lenses. The membranes feature either a homogeneous thickness, or it is shaped resulting in an inhomogeneous cross-section. The lens systems incorporate a piezo actuator which is operated in a regime of plusmn40 V. The shaped membrane lenses show lower wave front errors than the planar ones, down to 24...
We present the first adaptive microfluidic PDMS-lens system with an integrated piezoelectric pumping actuator. The system is fabricated in a highly streamlined fabrication process through casting via a hot embossing machine and subsequent oxygen bonding of the layers. With an optimized piezo actuator the achieved focal length ranges from 30 to 500 mm at a voltage from -9 to 44 V. We show that the...
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