In image sensor chip research and development, “Saturation capacity” refers to the maximum light signal intensity that a sensor can process. In other words, it indicates the limit value that the sensor can accommodate or process when exposed to very intense illumination.
Simply put, Saturation capacity is like the “saturation point” of the sensor. When the intensity of the light signal exceeds this saturation point, the sensor can no longer effectively process stronger light, which may cause overexposure or distortion in the image.
The purpose of measuring Saturation capacity is to ensure that the sensor can process light signals of various intensities under different lighting conditions and avoid distortion or saturation under high light intensity conditions. R&D engineers typically evaluate the sensor’s response under different lighting conditions to ensure its Saturation capacity is sufficient to cope with various lighting scenarios that may be encountered in real-world applications.
In summary, the working principle of Saturation capacity is that the sensor has an upper limit on processing light signals – exceeding this limit causes sensor saturation and image distortion. Measuring Saturation capacity helps ensure the sensor can cope with various lighting conditions and avoid issues when images are captured in high light environments.