Equipment principle of 3D holographic projection
Author: Laselamp

3D image display and control system, 360 holographic dedicated projection equipment, 360 holographic image equipment, image reflection system and display system, high-performance graphics computer workstation. The components include 3D holographic projection content, holographic projection film, holographic projection screen, 3D holographic projector, illusion glass, decorative box, etc.

3D image display and control system.

Using a digital micro mirror device (DMD) as a high-speed spatial light modulator (SLM), a spiral slice sequence obtained from voxelization of a 3D object's surface model is projected onto a rotating spiral screen. Based on the visual persistence effect, the slice sequence that changes in time and speed is perceived by the human eye as a three-dimensional image with real physical depth. The imaging space composition method based on a rotating spiral screen is emphasized, and the voxelization method based on the volume cube (BCC) sampling strategy is analyzed. A DMD control algorithm for binary slice images is designed.

2.360 holographic projection equipment.

Four cones made of transparent material can penetrate people's sight from any side. Through surface mirroring and reflection, people can see images and shapes floating freely from a conical space. Four video emitters emit light signals onto special prisms in the cone, integrating them to form a three-dimensional image with real dimensional space.

3. Image reflection system and display system.

The reflection system consists of a vacuum coated reflector, a reflector bracket, and a projector bracket. A display system is an electronic system that provides visual information.

The 360 holographic image adopts a high back projection screen.

The installation position of the projector and the audience are located on both sides of the screen, and the light emitted by the projector is directed from one side of the screen to the screen. The light enters the audience's eyes through the screen. The rear projection soft curtain material adopts high transparency special PVC material, combined with professional research and development of surface patterns, to achieve extremely low reflectivity of the light receiving surface.

5. High performance graphics computer workstation.

The main purpose is a high-performance desktop computer with high-quality graphical features and human-computer interaction functions, abbreviated as a workstation, for computer-aided engineering design; It is also used in areas such as business and office automation that require good graphic display performance.

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