CAMERAS-CMOS-CCD-LENS-STRUCTURE

2, image sensor, sound sensor

IP Camera image sensor has two modes, CMOS and CCD.CMOS is complementary metal oxide semiconductor, CMOS silicon and germanium are mainly used by these two elements made of semiconductor, through the CMOS on the negatively charged and positively charged transistors to the basic functions. These two complementary effects of the current generated by processing chips can be recorded and interpreted as images. The main advantages of CMOS than the CCD is saving the power. Unlike CCD, CMOS.But CMOS main weak point is when dealing with rapidly changing images, as the current transformation is too frequent, so make the CMOS becoming overheating. Dark current suppression is a real problem, if the inhibition is not good, it is very vulnerable to produce noise.

CCD image sensor from the silicon substrate was in the two-dimensional arrangement of the photodiode and the transmission circuit. Photodiode the light into electric charges, then transmitted by the conversion circuit and output.
Typically, transmission equipment,if need excellent image quality, CCD image sensors are used, while the focus on power consumption and cost of products, select the CMOS image sensor. But new technology is to overcome the inherent weaknesses of each type of device body, while retaining for some of the features a particular purpose. This part of the same with analog cameras. Sound sensors that pick up sound, or call the microphone, the same principles of traditional microphone.

CMOS Sensor vs CCD Sensor – Which one is better for Digital Cameras

Todays Digital cameras are extremely common and prices have gone down because of the introduction of CMOS sensors, which are cheaper to produce then CCD Sensors.

CCD stand for (charge-coupled device) and CMOS stand for (complimentary metal-oxide semiconductor) both work in the same way and convert light into electrons. Once the Sensor accumulates enough charge, it is transported and read an converted from analog to digital from pixel to digital value which we see on our LCD screens and outputed to print.

• CCD are said to creat higher quality and cleaner files than CMOS
• CMOS is power efficient compared to CCD Sensors.
• CMOS are cheaper to produce thats why most cameras use CMOS
• CCD technology is older and been optimized for better quality.
• CMOS is gaining ground with the CCD technology and soon will outdo CCD
• CCD has advantage in Dynamic Range and Noise over the CMOS
• CMOS has the advantage over CCDs because all camera functions can be placed on the image sensor.
• CMOS has natural blooming immunity (Antiblooming, the ability to gracefully drain localized overexposure
  without compromising the rest of the image in the sensor) CCD requires engineering antiblooming also known as simple as over exposure
• Both image chip types are equally reliable in most consumer and industrial applications.
• Both types of sensor accomplish the same task of capturing light and converting it into electrical signals.
• CMOS image sensors are designed for a large, consumer or near-consumer application.
• CCD image sensors, on the other hand, are more general purpose.