The structure of the USB camera module mainly includes the following parts:
Camera components: including CCD or CMOS image sensor, focus adjustment part, lens assembly and signal processing chip. The image sensor is responsible for converting optical signals into electrical signals; the focus adjustment part can be adjusted according to the subject; the lens assembly focuses the lens signal on the sensor; the signal processing chip performs digital signal processing on the electrical signal output by the sensor to obtain high-quality images.
USB interface components: including USB interface chip, USB data bus, power management chip and control logic components. The USB interface chip processes the image data output by the camera and converts it into digital signals, which are transmitted to the computer through the USB data bus; the power management chip is responsible for controlling the working status and power management of the camera module; the control logic component is responsible for realizing the basic function control of the module.
Other components: lens, aperture, image sensor (Sensor), image processor, etc. The lens is a structure that gathers light so that the photosensitive device can obtain a clear image. The performance of the lens directly affects the quality of the image. The aperture controls the amount of light that enters the body through the lens, affecting the clarity and range of the shot. The image sensor converts light signals into electrical signals and is a key component of image acquisition.
Other optional components: such as connectors, flash, motors, etc. These components can be added or not according to specific application requirements.
