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The Fresnel lens arrays, which can be used as the alternative of microlens arrays for integral imaging, were designed and fabricated. Their imaging properties for different colors were investigated, and a design based on the Fresnel lens arrays with chromatic dispersion is proposed.
This paper reports a new maskless nanoscale patterning method based on microdischarge devices tips array. That is, inverted pyramid microplasma devices are integrated into the scanning probe hollow tips array with nano-apertures. A 2×2 inverted pyramidal thin-wall hollow tips array with each microcavity dimension of 50µm microdischarge devices are sucessfully fabricated by MEMS process. Nano-apertures...
This paper proposes a semi-spherical microphone array based sound localization system for a service robot. The hardware of the proposed system basically contains 12 capacitor microphones disposed in two layers on the semi-sphere of 19 cm diameter. It aims to estimate the degree relationship between the main speaker and the robot and provides the robot useful information for more effective human-robot...
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