CMOS图像传感器和CCD图像传感器都是把入射光转变为电荷的半导体器件,因此两者对可见光和近红外光的灵敏度基本相同。CCD技术己有二十多年历史,它的缺点是,把它和时钟驱动电路、时序电路信号处理电路做在一块芯片上的费用很高。所以这些电路另外做成集成电路。通常,使用CCD时需要三至八块芯片。而且CCD对时钟信号的幅度和形状的要求很严格,需要 Both CMOS image sensors and CCD image sensors are semiconductor devices that convert incident light into electrical charges so that both have substantially the same sensitivity to visible and near-infrared light. CCD technology has more than 20 years of history, its disadvantage is that it and the clock driver circuit, the timing circuit signal processing circuit on a chip costly. So these circuits are made of integrated circuits. Normally, three to eight chips are needed when using a CCD. And CCD on the clock signal amplitude and shape of the request is very strict, need