What is the principle of this 3d holography?

It is made according to the principle of virtual imaging and consists of cabinet, spectroscope, spotlight and video playback equipment. Based on the principle of spectroscopic imaging, a static and dynamic product display system is formed through the special treatment of constructing the three-dimensional model of the product, and then the photographed product image or the three-dimensional model image of the product is superimposed on the scene. People don't need to wear any polarized glasses, and they can enjoy the special effects of 3D phantom stereoscopic display without any constraints, giving people a visual impact and a strong sense of depth.