A real-time holographic projection system based on conjugate continuation

A holographic projection and conjugation technology, which is applied in the field of holographic projection systems, can solve problems such as no engineering application, and achieve the effects of real-time projection reproduction, improved calculation speed, and high reproduction quality.

Active Publication Date: 2016-11-30
ACADEMY OF ARMORED FORCES ENG PLA
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Problems solved by technology

[0004] At present, the domestic real-time holographic projection system is still in the stage of theoretical and experimental research, and there is no engineering application

Method used

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  • A real-time holographic projection system based on conjugate continuation
  • A real-time holographic projection system based on conjugate continuation
  • A real-time holographic projection system based on conjugate continuation

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Embodiment Construction

[0020] The "a real-time holographic projection system based on conjugate extension" of the present invention will be further described below with reference to the drawings and examples.

[0021] figure 1 The first embodiment of the holographic projection system provided by the present invention includes a target object (1), a conjugate imaging system (2), a conjugate extended image (3), a Fourier transform lens (4), and a CCD camera (5), digital hologram (6), computer (7), laser light source (8), collimation system (9), spatial light modulator (10), projection screen (11), beam splitter (12), trapezoid Isosceles prism (13), roof prism (14), periscope prism (15).

[0022] In this embodiment, the target object is a two-dimensional plane image, and the conjugate extension image (3) is formed by a beam splitter (12), a trapezoidal isosceles prism (13), a roof prism (14) and a periscope prism (15). ) formed by imaging the target object (1) with a conjugate imaging system (2). Th...

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Abstract

The invention belongs to the technical field of holography and projection display, and in particular relates to a real-time holographic projection system realized by conjugate extension. It consists of a target, a conjugate imaging system, a Fourier optical system, a CCD camera, a computer, a laser light source, a spatial light modulator and a projection screen. Obtain the conjugate extended image of the target object by the conjugate imaging system, use the hologram acquisition system to realize the fast calculation of the hologram through a single Fourier transform, load the hologram into the spatial light modulator, and use the laser light source to illuminate the hologram to achieve Holographic projection display of the target object. The holographic projection display system provided by the present invention can convert all the information of the target object into a hologram, and greatly improve the acquisition speed of the hologram, realize the real-time holographic projection display of the target object, and effectively overcome the existing holographic The projection display system has the disadvantages of slow calculation speed, no real-time projection, and large amount of information loss.

Description

technical field [0001] The invention belongs to the technical field of holography and projection display, and in particular relates to a holographic projection system capable of realizing real-time holographic projection display of an object. Background technique [0002] With the rapid development of laser technology and holographic technology, holographic display has penetrated into various fields of social life. Holographic projection systems use laser light to illuminate a hologram to obtain a true representation of the target. Compared with the traditional single-pixel-to-single-pixel projection system, holographic laser projection uses all pixels on the hologram to reproduce each point on the reproduction surface. The reproduced image is bright in color, high in contrast, and has information redundancy and fault tolerance. Strong ability and many other advantages. Holographic projection technology can be widely used in public places such as stages, theaters, advertis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03H1/22G03B21/00
Inventor 蒋晓瑜裴闯李强闫兴鹏梁浩聪汪熙刘中晅张鹏炜赵锴赵哲
Owner ACADEMY OF ARMORED FORCES ENG PLA
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