The difference between 3d camera and ordinary camera

The imaging principle is the same. A 3D camera can be assembled from two cameras according to the scientific visual position. In recent years, a special 3D camera has been developed. If the vulgar point is that there is an extra set of lenses, the display screen presents two sets of overlapping images. The two sets of lenses are like human eyes, so they can produce a three-dimensional 3D effect when viewed. That's right, but most of the principles in it are optical principles, and it's not clear in a word or two.