Varying Performance Benchmarks
To ascertain what is the difference between CCD and CMOS sensor digital camera, we to have to first figure out their individual role in drifting the market by displaying their unique value prepositions. These technology manifestations truly outperform by comprising of fundamental sensor architecture with varied features for lending supreme imaging performance. To have a more thorough understanding of these distinct sensor types, let us deliberate on their basic structure.
Charged Coupling Device
The CCD or charged coupling device is a function of two key elements i.e. a color filter and a pixel array. The color filter is used for filtering of light that enters the pixel array, while the pixel array consists of an extra circuitry that converts the filtered light into analog voltage signal. This digital conversion is guided by a special manufacturing process that overcomes any resultant distortion. This is not it, these complex processes lead to high quality imagery display wherein each pixel cell gains a nominal electric charge the moment light hits the chip.
Complementary Metal Oxide Semiconductor
What is the difference between CCD and CMOS sensor can’t be well understood, unless we define the contending technology i.e. CMOS sensors. The term CMOS or complementary metal oxide semiconductor also knows as active pixel sensors comprise of an integrated circuit technology with several transistors. These transistors are involved in moving the electric charge through traditional wires for each individual pixel. In these sensors, a single circuit consists of all the required circuitry needed to convert real time scenarios into digital displays. Moreover, this sensor architecture enhances the image sensor capabilities by adhering to features such as separate light sensors, analog to digital converter, active amplifier and digital controller. In this way, all the necessary functioning elements in a CMOS based technology are already integrated into the sensor to ensure uncompromised imaging performance with the perks of low power consumption and low noise images.
Distinguishing Factors
However, to draw the basic difference between the two rivalries used in a digital camera, let us identify their key fortes and weaknesses. Although, the basic function of both these sensors is to convert light photons into electrons, however they basically differ in the way they process such signals. In a CCD sensor, this conversion occurring outside the sensor is guided by a special manufacturing process. While the point in case of CMOS is quite different as each pixel cell is involved in its own voltage conversions as the sensor adheres to built-in-circuitry for gauging its performance. In a nutshell, what is the difference between CCD and CMOS sensor digital camera is a function of key performance considerations suiting your application specific requirements.
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