The composition and working principle of the camera

The front end of the camera is the optical system part, which mainly includes the camera lens and the dichroic prism. After being separated by the lens imaging prism, the light falls on the target surface of the camera tube to form charges. The optical system is the first "gate" for light to enter the camera. The lenses of home cameras are generally not removable, and the zoom range is only about eight times. The core part of the camera is the camera tube. Its main function is to convert the light from the optical system into electric charge, form the corresponding image cable and temporarily store it in its tiny capacitor. The solid-state imaging device based on integrated circuits is a charge-coupled camera, or CCD, which is widely used in home cameras at present. It uses the charge coupling effect to store, transfer and read image signals in silicon wafers. There are a large number of signal processing components and circuits in the fuselage to complete signal amplification and color correction. The camcorder also has a sophisticated tape recording and playback mechanical structure. In addition, the microprocessor enables complex control operations such as aperture control, white balance adjustment, and center overlap adjustment to be completed automatically.