Sony Pregius Sensors- Imaging Performance

Sony Pregius Sensors are superior than any other sensors as they provide best of the both worlds by becoming a symbol of excellence. In 2014, Sony displayed its imaging performance by redefining Global Shutter CMOS imaging category by its new Global Shutter (GS) CMOS imaging technology called pregius. This global shutter pixel technology in CMOS image sensors was first featured in the Sony IMX174 CMOS sensors. These sensors utilize low noise CCD structure for comprehending high picture quality thus ensuring CCD imaging performance and fast frame rates. Sony raised its bar of CMOS imaging quality by providing the best alternative to CCD sensors in form of IMX174. IMX174 imaging performance can be measured against CCD ICX274 sensor by using EMVA1288 standard. This standard is a unified measure for measuring camera’s imaging performance and was introduced by European machine vision association. This standardized method uses metrics such as full well depth and read noise to provide objective performance comparison.

Sony Pregius Sensors encompass higher Quantum efficiency (QE) implying better conversion efficiency for low light applications. Sensor’s ability to convert photons to electrons can be measured by QE which varies across light spectrum.  These sensors constitute high image quality due to low temporal dark noise thus allowing for more signal gain. These sensors can produce dynamic scenes in different lighting situations due to better dynamic range and large saturation capacity. Sony Pregius Sensors offer improved pixel design due to four times larger saturation capacity and 1.75 times larger pixel size than other sensors i.e. CCD ICX274 sensor.

CCD and CMOS cameras use correlated double sampling(CDS) technique for reducing temporal dark noise. However, Pregius CMOS sensors perform both analog and digital CDS for reducing temporal dark noise. Sony pregius sensors technology also integrates an analog memory storage element along with pixel design for reducing temporal dark noise without compromising pixel saturation capacity. Hence, Sony again outdid customers’ expectations by introducing new global shutter sensor technology with low temporal dark noise thus improving apparent sensitivity without forgoing image quality.