What is the difference between a digital camera CMOS lens and a CCD lens? Which lens is better?
CCD and CMOS in the manufacture of the main difference is that the CCD is integrated in the semiconductor single crystal material, and CMOS is integrated in the metal oxide is called the semiconductor material, the working principle is not essential difference. CCD only a few manufacturers such as Sony, Panasonic and other master this technology. And CCD manufacturing process is more complex, the use of CCD camera prices will be relatively expensive. In fact, after technological transformation, the current CCD and CMOS, the actual effect of the gap has been reduced a lot. And CMOS manufacturing costs and power consumption are much lower than the CCD, so many camera manufacturers use CMOS sensor components. Imaging: in the same pixel CCD imaging permeability, sharpness is very good, color reproduction, exposure can guarantee basic accuracy. And CMOS products are often transparent in general, the color of the material to restore the weak, exposure is not very good, due to their physical characteristics of the reasons, CMOS image quality and CCD still have a certain distance. But because of the low price and a high degree of integration, so in the field of camera or has been widely used.
The current situation is that many low-end entry-type digital camera using cheap low-grade CMOS chip, imaging quality is relatively poor. Versatile, advanced and professional digital cameras use different grades of CCD, individual professional or quasi-professional digital camera using advanced CMOS chips. On behalf of the future development of imaging technology X3 chip is actually a CMOS chip.
CCD and CMOS which is better can not be generalized, but in general, the popularity of digital cameras in the use of CCD chip imaging quality is better.
2CCD dead pixels and repair problems shooting night or cover the lens cover for a long time exposure, the image of the color point is not necessarily CCD dead pixels, some noise, CCD temperature will be improved after the upgrade, through the firmware (Firmware) upgrade Some can also improve.
CCD and CMOS difference: Since ccd and cmos are photosensitive sensors, why the price is so poor, what is the difference between them in the end, for the general digital camera novice is to consider their performance and other issues. CCD is currently more mature imaging devices, CMOS is seen as the future of imaging devices.
Because the CMOS structure is relatively simple, with the existing large-scale integrated circuit production process the same, so that production costs can be reduced. In principle, the CMOS signal is a charge signal in units of points, while the CCD is a line of current signal, the former is more sensitive, faster and more power. Now advanced CMOS is not worse than the general CCD, but the CMOS process is not very mature, ordinary SMOS generally low resolution and poor imaging.
