Two-wing holographic projection sand table device for three-dimensional line model roaming, and projection method implemented by device

Abstract

The invention relates to a two-wing holographic projection sand table device for three-dimensional line model roaming. The device comprises a horizontal triangular prism, first projectors, and second projectors, wherein the two end surfaces of the horizontal triangular prism are isosceles triangles; a first side surface and a second side surface of the horizontal triangular prism are both rectangles and adopt materials with high light transmittance; the bottom of the horizontal triangular prism is a rectangle; a lens of each first projector faces the first side surface of the horizontal triangular prism, and can carry out image projection on the first side surface; a lens of each second projector faces the second side surface of the horizontal triangular prism, and can carry out image projection on the second side surface; and a projection picture projected by each first projector on the first side surface of the horizontal triangular prism and a projection picture projected by the corresponding second projector on the second side surface of the horizontal triangular prism are spatially synchronous pictures. The device provided by the invention has the advantage that the effect of holographic projection roaming for engineering lines can be achieved.

Description

technical field [0001] The invention relates to the technical field of holographic projection, in particular to a two-wing holographic projection sand table device and projection method for roaming three-dimensional line models. Background technique [0002] Holographic projection technology is a technology that uses the principles of interference and diffraction to record and reproduce three-dimensional images of objects. The current holographic projection device mainly uses multi-faceted or four-sided surrounded cone transmission devices, based on the holographic composite effect formed by the refraction of light in the center of the cone, the audience can see it from different angles from multiple different sides of the cone. Project different sides of the model. Limited by the expression of the cone bounding box, the device is usually only capable of holographic projection of a single model with a small volume such as a character, car or building. Once the projection vo...

AI Technical Summary

Problems solved by technology

Limited by the expression of the cone bounding box, the device is usually only capable of holographic projection of a single model with a small volume such as a character, car or building. Once the projection volume exceeds the size of the projection device, such as a railway in a large scene Highway engineering, the projection effect will be seriously distorted

[0003] In addition, the model scene is limited by the size of the projection space, so that the scene can only be expressed in a static closed space, and the roaming expression effect required for linear engineering simulation cannot be achieved

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