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We present the concept and realization of a micro plenoptic camera to achieve multiple viewpoint imaging with one single image capture and without moving the camera. The micro plenoptic camera is based on lightfield photography where the camera captures the 4- dimensional lightfield and images it onto a 2- dimensional CCD sensor through the use of a microlens array. The microlens array was fabricated...
A method to fabricate complex structures on non-planar surfaces by utilizing a transfer method is presented. 3-dimensional and high-aspect-ratio microelectromechanical systems (MEMS) structures are transferred to flexible membranes, and can be further transferred to any non-planar surfaces. Here, we used a structure formed on a silicon-on-insulator (SOI) wafer by deep reactive-ion etching (DRIE) as...
We report on a prototype endoscope with tunable-focus liquid microlenses actuated through infrared (IR) light integrated at its distal end. Tunable-focus microlenses scanning the areas of interest with minimal movements of the scopes themselves would greatly advance endoscopy. Multiple IR light-responsive hydrogel posts were used to tune the focal length of the microlens, which were formed by a curved...
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