Compared with traditional cameras, traditional cameras use "film" as a carrier for recording information. The "film" of a digital camera is its imaging light-sensing device. It is integrated with the camera and is the heart of the digital camera. Photoreceptors are the core and the most critical technology of digital cameras. The development path of digital cameras can be said to be the development path of photoreceptors. At present, there are two kinds of core imaging components of digital cameras: one is a widely used CCD (charge coupled) element; the other is a CMOS (complementary metal oxide conductor) device.
Charge coupled device image sensor CCD (Charge Coupled Device), which is made of a high-sensitivity semiconductor material, can convert light into electric charge, and is converted into a digital signal by an analog-to-digital converter chip. After the digital signal is compressed, The camera's internal flash memory or built-in hard disk card saves the data so that it can be easily transferred to the computer, and with the help of computer processing, according to the needs and imagination to modify the image.
Complementary metal-oxide-semiconductor (CMOS) complementary semiconductors (CMOS), like CCDs, are semiconductors that record light changes in digital cameras. The manufacturing technology of CMOS is no different from general computer chips. It is mainly made of semiconductors made of silicon and germanium, which make it possible to coexist on the CMOS with N (band-electricity) and P (band + electricity) grades. In semiconductors, the current generated by these two complementary effects can be recorded and interpreted by the processing chip as an image. However, the disadvantage of CMOS is that it is prone to noise. This is mainly due to the fact that early designs made CMOS overheated due to current changes when dealing with rapidly changing images.
At the same resolution, CMOS is cheaper than CCDs, but CMOS devices produce lower image quality than CCDs. So far, the vast majority of consumer-grade and high-end digital cameras on the market use CCDs as sensors; CMOS sensors are used as low-end products on some cameras. If any camera manufacturer uses a CCD camera Sensors, manufacturers will spare no effort to use it as a selling point to promote, even the title of "digital camera." For a time, whether or not a CCD sensor has become one of the criteria for judging the quality of digital cameras.
Because the CMOS sensor is convenient for large-scale production, and the speed and cost are low, it will be the development direction of the key components of the digital camera. At present, with the continuous efforts of Canon (CANON) and other companies, new CMOS devices are continuously being developed. High dynamic range CMOS devices have emerged. This technology eliminates the need for shutter, aperture, automatic gain control, and gamma correction. It is close to the imaging quality of the CCD. In addition, due to the inherent plasticity of CMOS, it is possible to make large-sized CMOS photosensors with high pixels without increasing the cost. Compared with the stagnation of the CCD, CMOS has shown its vigorous vitality as a new thing. As a core component of digital cameras, CMOS sensors have a tendency to gradually replace CCD sensors and hopefully become mainstream sensors in the near future.
Charge coupled device image sensor CCD (Charge Coupled Device), which is made of a high-sensitivity semiconductor material, can convert light into electric charge, and is converted into a digital signal by an analog-to-digital converter chip. After the digital signal is compressed, The camera's internal flash memory or built-in hard disk card saves the data so that it can be easily transferred to the computer, and with the help of computer processing, according to the needs and imagination to modify the image.
Complementary metal-oxide-semiconductor (CMOS) complementary semiconductors (CMOS), like CCDs, are semiconductors that record light changes in digital cameras. The manufacturing technology of CMOS is no different from general computer chips. It is mainly made of semiconductors made of silicon and germanium, which make it possible to coexist on the CMOS with N (band-electricity) and P (band + electricity) grades. In semiconductors, the current generated by these two complementary effects can be recorded and interpreted by the processing chip as an image. However, the disadvantage of CMOS is that it is prone to noise. This is mainly due to the fact that early designs made CMOS overheated due to current changes when dealing with rapidly changing images.
At the same resolution, CMOS is cheaper than CCDs, but CMOS devices produce lower image quality than CCDs. So far, the vast majority of consumer-grade and high-end digital cameras on the market use CCDs as sensors; CMOS sensors are used as low-end products on some cameras. If any camera manufacturer uses a CCD camera Sensors, manufacturers will spare no effort to use it as a selling point to promote, even the title of "digital camera." For a time, whether or not a CCD sensor has become one of the criteria for judging the quality of digital cameras.
Because the CMOS sensor is convenient for large-scale production, and the speed and cost are low, it will be the development direction of the key components of the digital camera. At present, with the continuous efforts of Canon (CANON) and other companies, new CMOS devices are continuously being developed. High dynamic range CMOS devices have emerged. This technology eliminates the need for shutter, aperture, automatic gain control, and gamma correction. It is close to the imaging quality of the CCD. In addition, due to the inherent plasticity of CMOS, it is possible to make large-sized CMOS photosensors with high pixels without increasing the cost. Compared with the stagnation of the CCD, CMOS has shown its vigorous vitality as a new thing. As a core component of digital cameras, CMOS sensors have a tendency to gradually replace CCD sensors and hopefully become mainstream sensors in the near future.
Pre-Terminated Cable,Fiber Optical Patch Cable,Indoor Outdoor Pre-Terminated Cable,Pre-Terminated Fiber Optic Cable
ShenZhen JunJin Technology Co.,Ltd , https://www.jjtcl.com