Optical interference and diffraction based holographic display device of showcase

Abstract

The invention relates to an optical interference and diffraction based holographic display device of a showcase. The display device comprises a bearing rack, separator plates, coated glass, a projection rack, cameras, at least one LED display, projection imaging glass, a holographic projection film, illuminating lamps, a projector, a supporting desk, a rotary table mechanism and a control system; and the bearing rack is divided into a holographic imaging cavity, a projection cavity and a bearing cavity from top to bottom by the separator plates, the supporting desk is embedded into the bottom of the bearing cavity via the rotary table mechanism, the cameras are distributed uniformly surrounding the supporting desk, the projector is mounted in the bottom of the projection cavity, the illuminating lamps are distributed uniformly surrounding the optical axis of the projector, the projection imaging glass is embedded into the separator plate between contact surfaces of the projection cavity and the bearing cavity, different coated glass is connected mutually via the projection rack, and the LED display is embedded into the upper end of the holographic imaging cavity. According to the invention, the requirement of optical holographic imaging display of information which needs displaying can be met, and an object which needs displaying can be displayed comprehensively and flexibly in different angles in the holographic information display process.

Description

technical field [0001] The invention relates to a holographic display device, in particular to a display cabinet holographic display device based on optical interference and diffraction. Background technique [0002] With the rapid development of electronic information technology and optical technology, optical holographic imaging technology has been widely used in the display of product entity information, video information, etc., but found in actual use, the current optical holographic imaging When the device is in use, the displayed information is often holographically projected directly through the projection equipment. Although it can meet the needs of use, it cannot flexibly adjust the displayed information, and it also requires a lot of related work before displaying the displayed information. As a result, the current optical holographic imaging equipment is relatively poor in flexibility and relatively difficult to operate, which is not conducive to the promotion and...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of electronic information technology and optical technology, optical holographic imaging technology has been widely used in the display of product entity information, video information, etc., but found in actual use, the current optical holographic imaging When the device is in use, it often uses projection equipment to directly holographically project the displayed information. Although it can meet the needs of use, it cannot flexibly adjust the displayed information, and it also requires a lot of related work before displaying the displayed information. As a result, the current optical holographic imaging equipment is relatively poor in flexibility and difficult to operate, which is not conducive to the promotion and application of optical holographic imaging technology. In addition, the current optical holographic imaging device is in use However, it is not possible to flexibly meet the needs of random display of multiple different item information according to the display needs, so the flexibility and practicability of the use are further restricted. Therefore, in view of this situation, it is urgent to develop an inventive optical holographic imaging device to meet the needs of practical use

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