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Showing 1 to 4 of 4 for “"tunable lens"”.
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Monocular vision for collision avoidance in vehicles
… The monocular system pairs a camera and passive lens with an active lens. Most active lenses require linear actuating systems to adjust the optical parameters of the system but this experiment employed an Optotune focus tunable lens adjusted by a Lorentz actuator for a much more reliable system. …
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Computational optical imaging: Applications in synthetic aperture imaging, phase retrieval, and digital holography
… aperture microscope using an electrically tunable lens to defocus images, which avoids the need to mechanically move a camera on a translation stage. Finally, we improve the reconstruction of images from a digital hologram based on an iterative algorithm that alternatively updates amplitude …
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Explorations in Monocular Distance And Ranging (MODAR) Techniques for Real-World Applications
… retrieving depth-from-focus using a liquid focus-tunable lens is constructed out of hobby-grade photography equipment. This concept has been explored previously in laboratory settings using specialized equipment; this work seeks to determine the feasibility of retrieving depth-from-focus using …
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Liquid Crystal Optics For Communications, Signal Processing And 3-d Microscopic Imaging
… in two orthogonal dimensions whereas an NLC lens is used to address the third dimension to complete a three dimensional (3-D) scanner. Such an NLC deflector was then used in a variable optical attenuator (VOA), whereby a laser beam coupled between two identical single mode fibers (SMF) was …