Cameras are widely used in video conferencing, telemedicine and real-time monitoring. Ordinary people can also talk and communicate through video and sound on the Internet through the camera. In addition, it can also be used for various popular digital images, audio-visual processing and so on.
Cameras can be divided into digital cameras and analog cameras. Digital cameras can convert analog video signals generated by video acquisition equipment into digital signals, and then store them in computers.
Extended data:
Principle of the camera: The optical image generated by the lens is projected on the surface of the image sensor, then converted into electrical signals, converted into digital image signals through A/D (analog-to-digital conversion), and then sent to the digital signal processing chip (DSP) for processing. Then it is transmitted to the computer through usb interface for processing and displayed on the display. You can see the image.
Structural components:
1, lens The lens structure consists of several lenses, including plastic lenses or glass lenses.
2. Image sensor. It can be divided into two categories, namely, charge coupled devices and complementary metal oxide semiconductors.
3. Power supply.
4. Working voltage. The camera needs two voltages, 3.3V and 2.5V respectively, and the latest technology chip uses1.8v..
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