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: Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China,Chongqing
• 出 处: Optoelectronics Letters
• 发表日期: 2010年04期
• 关键词: pixel retina implantation oscillator illumination prosthesis oscillating suffere

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.