How to make 3d holographic projection?

The 3d holographic projection manufacturing method comprises the following steps:

I. Materials/tools

A piece of paper; Plastic CD packaging shell; Tape paper; Pen; Scissors; Smart phone; A glass cutter.

Second, the method steps

1. Draw an isosceles trapezoid in the middle of the square drawing. Trapezoidal dimensions are: upper bottom 1cm, lower bottom 6cm, and height 3.5cm (which can be enlarged appropriately).

2. Cut the drawn isosceles trapezoid for later use.

3. Take out the prepared CD box, and cut out four small trapezoidal glass plates on the CD box according to the size of the cut trapezoidal graphic paper block.

4. Use adhesive tape to splice four small trapezoidal glass plates into a small pyramid and stick them together.

5. Put it on the phone screen.

Holographic imaging technology does not refer to holography or holography invented by Dennis Gabor in 1956. It is the next generation display technology to project three-dimensional images in three-dimensional space (images are physically "three-dimensional" rather than purely visually "three-dimensional"). In view of the lack of open academic research on holographic imaging technology in China, some contents of this encyclopedia page may explain the wrong definition and make readers misunderstand. The content may be to explain holography rather than holographic imaging technology. Please check and identify carefully.