video camera

A video camera is an electronic device that records video and typically audio. It converts an optical image into electrical signals using light-sensitive image sensors. Early video cameras used mechanical spinning disks or vacuum tubes with electron beams to scan images. Modern video cameras primarily use solid-state imagers like charge-coupled devices (CCDs), which are more compact, reliable, and sensitive to light. These sensors are integrated circuits on semiconductor chips that capture light and convert it into electrical charges, forming a digital image composed of pixels. Color CCD sensors use filters to capture red, green, and blue light, generating separate signals for each color. Video recording technology, initially for home movies, has also been applied to storing still images and transmitting them directly, impacting fields like photojournalism.123