2.360-degree holographic projection principle
Interference principle "Before projection, it is necessary to record the projected" shadow ",which is the first step of holographic projection technology, that is, using interference principle to record light wave information and complete the shooting process. In the process of shooting, some lasers
The object is irradiated to form a diffuser beam, and the other part of the laser beam is used as the reference beam of the holographic negative and superimposed with the object beam to produce interference. Interference will convert the phase and amplitude of each point on the object light wave into the phase and amplitude on the holographic negative.
The intensity changes in space, and all information is recorded by using the contrast and interval between interference fringes. After developing and fixing the negative with interference fringes, it becomes a hologram, that is, a hologram.
Diffraction principle: After completing the shooting process to form a hologram, the second step is to reproduce the light wave information of the object based on the hologram to complete the imaging process. In the imaging process, the hologram is irradiated by coherent laser to form the original image.
And the reproduced image has strong stereoscopic effect and visual effect. Because each part of the hologram records the light information of every point on the object, each part of the hologram can reproduce the whole of the original object.
After multiple exposures, several different images can be recorded on the same negative, and they can be displayed separately without interference.