A high performance optic to electrical array for visual recovery is proposed by imitating the mechanisms of photoreceptor in a human retina. The array can transform the incident natural light into a pulse signal, which pulse width is a constant and frequency is proportional to the light intensity. Design and verification of the chip has been completed in standard 0.5 μm CMOS process. Unique structures and methods are employed to optimize several key parameters and obtained higher performance. The pulse width is 0.13 ms and the pixel acquires 70 dB dynamic range, thus it can work reliably in common natural light scope. The pixel size is about 53 μm×50 μm and the power consumption is 0.62~1.46 μA per pixel. The experimental results show that the presented optic to electrical array is suitable to be high density integrated and to be wireless radio frequency powered, and therefore more suited for retinal prosthesis.