A retinal prosthetic device using a pulse-frequency-modulation CMOS image sensor


This paper describes a retinal prosthetic device using a pulse frequency modulation (PFM) based photosensor with a standard CMOS technology and its modification to stimulate retinal cells effectively. A 32x32-pixel PFM photosensor array chip have been fabricated using 0.6 μm CMOS technology and demonstrated the improved functions. 
DOI: 10.1145/1015090.1015233


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