& have spent & have spent CCD is used in photographic camera's high-end technology components, CMOS is used in the lower image quality of products, it has the advantage of manufacturing cost is CCD is lower and lower power consumption, this is also the market a lot of using USB connect Watson instrument mouth products without external power supply and the price cheap. Although technically quite different, but both CCD and CMOS performance gap is not very big, just CMOS camera requirement for light, but now has been basically solved the problem. At present, a lot of the size of the CCD component for a third of an inch or 1/4 ", under the same resolution, choose element size should be larger as well. The image sensor and the sensor.