Field holographic display system

Abstract

The invention belongs to the field of 3D display and discloses a field holographic display system. The system comprises a holographic projector, a projection screen, an interaction response unit and aprocessor; the holographic projector is corresponding to the projection screen in position; the holographic projector and / or the projection screen is provided with a movement executing mechanism connected with the processor; the processor is electrically connected with the holographic projector, the interaction response unit and the movement execution mechanism; the holographic projector projectsa divergent 3D image in the air; additional reference light sources are not needed; after the 3D image is converted through the projection screen of an equivalent negative-refractive index plane lens, a 3D image which can be observed and floats in the air can be obtained, and therefore, cost is reduced; the 3D image can be also displayed in front of or behind the projection screen, and display space is infinite; and an ultra-large picture and an ultra-deep field depth can be displayed in extremely small equipment space.

Description

technical field [0001] The invention relates to the field of 3D display, in particular to an on-site holographic display system. Background technique [0002] 3D display technology can provide depth information, thereby displaying a more realistic display scene. Current mainstream 3D display solutions (such as 3D movies in theaters) are all pseudo 3D display images based on parallax image pairs, and cannot display real 3D images. Although many 3D display technologies have been proposed, none of them can truly display large-scale, stable, high-quality 3D images. Holographic display is considered to be the ultimate solution in the display field, but it is difficult to achieve commercial application in the short term due to its extremely strict requirements on equipment and environment. [0003] The authorized notification number is CN106773469B, which provides a brand-new on-site reproduction holographic solution. In order for the human eye to observe and display large-scale...

AI Technical Summary

Problems solved by technology

[0004] The patent with the application number CN107831558A provides an equivalent negative refractive index plane lens and designs an air projection, but it needs to use a large-area plane display device, and it can only be displayed in front of the screen. The device is very bulky and the display space Limited, the display position is fixed, so that the viewing angle is limited, and it cannot be observed if it is offset by a certain angle, and it is very difficult to achieve a real 3D display, and it can only achieve an effect similar to Pepper's phantom

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