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We implemented a light-sensing function on CMOS-based multi-chip stimulator for retinal prosthesis. Using the light-sensing circuitry attached to each stimulation electrode, the flexible multi-chip stimulator is capable of image-based patterned stimulation. We verified the function of the light-controlled decision based on the light intensity measured just beside the stimulation site. We also experimentally...
A CMOS-based multi-chip flexible retinal stimulator with light-sensing function was designed. The light sensing function is implemented for light-controlled retinal stimulation in subretinal configuration. The basic functionality and feasibility of the multi-chip flexible retinal stimulator was confirmed. A photo-activating operation with adjustable photosensitivity was successfully implemented on...
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