CCD (charge-coupled device) technology is a type of image sensor commonly used in digital cameras, camcorders, and other imaging devices. It works by converting light into electrical charges that can be read and processed to create a digital image. CCD sensors are known for their high image quality, low noise levels, and high sensitivity to light. They are typically used in applications where image quality is paramount, such as in scientific imaging, astronomy, and medical imaging. CCD technology has been widely used for many years, but in recent years has been largely replaced by CMOS sensors in consumer electronic devices due to their lower power consumption and cost.