1 June 2016 Compact and high resolution virtual mouse using lens array and light sensor
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Abstract
Virtual mouse based on IR source, lens array and light sensor was designed and implemented. Optical architecture including lens amount, lens pitch, baseline length, sensor length, lens-sensor gap, focal length etc. was carefully designed to achieve low detective error, high resolution, and simultaneously, compact system volume. System volume is 3.1mm (thickness) × 4.5mm (length) × 2, which is much smaller than that of camera-based device. Relative detective error of 0.41mm and minimum resolution of 26ppi were verified in experiments, so that it can replace conventional touchpad/touchscreen. If system thickness is eased to 20mm, resolution higher than 200ppi can be achieved to replace real mouse.
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Zong Qin, Yu-Cheng Chang, Yu-Jie Su, Yi-Pai Huang, Han-Ping David Shieh, "Compact and high resolution virtual mouse using lens array and light sensor", Proc. SPIE 9867, Three-Dimensional Imaging, Visualization, and Display 2016, 986718 (1 June 2016); doi: 10.1117/12.2229446; https://doi.org/10.1117/12.2229446
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