1. Holographic projection technology can record all information about the amplitude and phase of light waves in an object and reproduce it. Therefore, the application of holographic technology can obtain the same three-dimensional image as the original object. Observing the reconstructed virtual image of holograms from different angles can reveal different sides of the object, with observation effects and depth of view.

2. Any part of the hologram can reproduce the basic shape of the original object. Spherical waves scattered from any point on an object can reach every point or part of the holographic plate and interfere with the reference light to form a primitive hologram, where each point or part of the hologram records scattered light from all object points. Therefore, each part of an object hologram can reproduce all the object points that were illuminated at that point during recording, forming an image of the object. That is to say, a part of the hologram can still reproduce the image of the object after being damaged.

3. As a recorder of light wave information, the presence or absence of holograms is an important criterion for determining whether the 3D technology we are exposed to is holographic projection technology.