An ultra-low power CMOS oscillating pixel array for retina implantation  

作　　者：孙康明 袁祥辉 孟丽娅 饶程 

机构地区：[1]Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China,Chongqing University [2]Chongqing Technology and Business Institute

出　　处：《Optoelectronics Letters》2010年第4期275-277,共3页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Nos. 30470469 and 60702007)

摘　　要：A light-controlled oscillating array for retina prosthesis is presented.The unique advantage of the circuit is that it has a lower voltage and ultra-low power consumption.And it has some other features as below:it is applicable to the natural light illumination and each pixel is an independent oscillator whose frequency is proportional to the intensity of the incident light.The fundamental characteristics of the circuit are analyzed.It is fabricated with a standard 0.6 μm CMOS technology.The experimental results indicate that the proposed circuit can be used for retina implantation,taking the place of the suffered photoreceptor in the retina of the blind and partially recovering the blind,s eyesight.A light-controlled oscillating array for retina prosthesis is presented.The unique advantage of the circuit is that it has a lower voltage and ultra-low power consumption.And it has some other features as below：it is applicable to the natural light illumination and each pixel is an independent oscillator whose frequency is proportional to the intensity of the incident light.The fundamental characteristics of the circuit are analyzed.It is fabricated with a standard 0.6 μm CMOS technology.The experimental results indicate that the proposed circuit can be used for retina implantation,taking the place of the suffered photoreceptor in the retina of the blind and partially recovering the blind,s eyesight.

关 键 词：人视网膜 像素阵列 CMOS 超低功耗 振荡器 植入 自然光照明 感光细胞 

分 类 号：TN432[电子电信—微电子学与固体电子学]