Application of holographic projection principle

Holographic projection, also known as virtual image technology, mainly uses the principles of interference and diffraction to reproduce the three-dimensional image of the object, which is the reverse display process of holographic photography technology. Holographic projection technology can be divided into three types: 3D image technology of laser beam projection entity, aerial projection and interaction technology, and 360-degree holographic display screen technology. This technology can not only create aerial illusion, but also make illusion interact with performers, with amazing effect, and it has a good application in concerts, exhibitions, bars and entertainment and other places.

Holographic projection production method

First, we draw a circle with compasses. Then, we will find a sharp thing on the compass. After that, we will draw five radii with something sharp. But when changing, you should pay attention to drawing four angles, and the angle of each angle should be 70 degrees. Then we draw a chord with a central angle to form four triangles with a vertex angle of 70 degrees. We'll disassemble the drawn image then. Next, we stick it with transparent glue, so that we get a quadrangular pyramid.

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, to record the light wave information by using the interference principle and complete the shooting process. In the process of shooting, a part of the laser irradiates the object to form a diffuser beam, and the other part of the laser as a reference beam overlaps with the object beam to produce interference. Interference is to convert the phase and amplitude of each point on the object light wave into spatially varying intensity, and record all information by using the contrast and interval between interference fringes. The negative recording interference fringes is developed and fixed to become 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 by using the diffraction principle.

Complete the imaging process. In the imaging process, the hologram is irradiated with coherent laser to form two images, namely the original image and the conjugate image, and the reconstructed image has a 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 image of the original object. After multiple exposures, multiple different images can be recorded on the same negative and displayed separately without interference. Holographic projection application

Stage performance

In the stage performance, holographic projection technology can not only let the audience see the real three-dimensional image, but also interact with the performers to make the performance more exciting. Therefore, more and more stages have gradually adopted this high-tech technology to create the stage effect, and the effect has been well received by the audience, and this high-tech performance mode has also been highly praised.

At the 20 15 Spring Festival Gala in the Year of the Sheep, Chris Lee created four images of himself with the help of holographic projection technology, which was difficult to distinguish between true and false, feasting the audience and shocking everyone's hearts. Fashion show

In the runway show of fashion release, the application of holographic projection technology is intended to show a real holographic projection picture, which can make the stage dress up in fashion and beauty according to the steps of the model, bring the audience to another world, and let the audience experience the unprecedented dual world of virtual and reality.