What is holographic projection? What are the commonly used holographic technologies?

Holographic projection technology is a high-tech that has emerged in recent years. It uses the principles of interference and diffraction to record and reproduce the real three-dimensional images of objects.

1. Chad Dyne, a 29-year-old graduate student of science and technology in Massachusetts, USA, invented an air projection and interactive technology, which is a milestone in display technology. It can project interactive images on the wall formed by airflow. This technology comes from the phantom principle. Projecting an image on water vapor can form an image with strong layering and three-dimensional sense due to uneven molecular vibration. Japanese technology company invented a 3D image that can be projected by laser beam. This technology uses nitrogen and oxygen to diffuse in the air, and the mixed gas becomes hot slurry, forming a short 3D image in the air. This method is mainly realized by a small explosion in the air. 3. Researchers from the Institute of Innovation and Technology of the University of Southern California announced that they have successfully developed a 360-degree holographic display screen. This technology projects an image on a high-speed rotating mirror to realize a three-dimensional image, but it seems a bit dangerous.

So far, except for high-tech conferences and the like. Holographic projection technology was used only in a Hatsune Hatsune concert named Miku's Day on the evening of March 9th, 20 1 1+0 and the New Year's Eve party of Hunan Satellite TV on 20/kloc-0.