How many pixels does a computer camera need to be HD?

The camera used in computer mainly depends on resolution, and the highest resolution refers to the size of the highest level of image resolution ability of the camera, that is, the maximum number of pixels of the camera. At present, the resolution of 300,000 pixel CMOS on the market is 640×480, and that of 500,000 pixel CMOS is 800×600.

The two digits of the resolution represent the point units of the length and width of the picture. The aspect ratio of digital pictures is usually 4: 3. In practical application, if the camera is used for online chat or video conference, the higher the resolution, the greater the network bandwidth is needed. Therefore, we should pay attention to choose a product with appropriate pixels according to our own needs.

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Maintenance skills:

1, try to avoid the camera facing the sun directly, so as not to damage the image sensing device of the camera.

2. Avoid contact between the camera and oil, steam, water vapor, moisture and dust, and avoid direct contact with water.

3. Do not use irritating cleaning agent or organic solvent to wipe the camera.

4. Do not pull and twist the connecting cables, including computer cameras and surveillance cameras;

5. If it is not necessary, don't disassemble the camera at will, and don't try to touch its internal parts, which will easily damage the camera. Once damaged, it is estimated that the dealer will not guarantee it.

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