What is the structure and principle of the camera?

The front end of the camera is an optical system, which mainly includes a camera lens and a dichroic prism. After color separation by the lens imaging prism, the light falls on the target surface of the camera tube to form charges. Optical system is the first "gate" for light to enter the camera. Generally, the lens of a household camera can't be disassembled, and the zoom range is only about eight times.

The core part of the camera is the camera tube, whose main function is to convert the light from the optical system into charge, and then form the corresponding video cable, which is temporarily stored in its tiny capacitor. Solid-state camera based on integrated circuit is a widely used charge-coupled camera in household cameras, which uses charge-coupled effect to store, transmit and read image signals in silicon wafer. There are still a large number of signal processing components and circuits in the fuselage to complete signal amplification and color correction, and the camcorder also has an accurate mechanical structure for tape recording and playback. In addition, the microprocessor can also automatically complete complex control operations such as aperture control, white balance adjustment and center coincidence adjustment.

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