Markus Sandrock

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Focus tunable, adaptive lenses provide several advantages over traditional lens assemblies in terms of compactness, cost, efficiency, and flexibility. To further improve the simplicity and compact nature of adaptive lenses, we present an elastomer-liquid lens system which makes use of an inline, transparent electroactive polymer actuator. The lens requires(More)
The testing position for hip-joint prostheses proposed in DIN 58840 was compared with a testing position better adapted to the real stress situation, and possible effects studied. A load and movement analysis was carried out, and the respective position at which maximum impact loads occur was analysed. After the dynamic test, the results of the loads to be(More)
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