Device and method for realizing holographic three-dimensional (3D) images

A 3D and holographic technology, applied in the field of holographic 3D realization devices, can solve the problems of losing light wave phase information, etc., and achieve the effect of fast and convenient recording and display

Active Publication Date: 2013-04-24
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary photography only records the intensity (ie amplitude) information of the light wave and loses the phase information of the light wave

Method used

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  • Device and method for realizing holographic three-dimensional (3D) images
  • Device and method for realizing holographic three-dimensional (3D) images
  • Device and method for realizing holographic three-dimensional (3D) images

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] This embodiment describes a holographic 3D recording device, including:

[0053] Laser generating unit, beam splitting unit, photorefractive crystal and rotating unit,

[0054] The laser generating unit is used to emit laser light;

[0055] The beam splitting unit is configured to receive the laser light emitted by the laser generating unit and split the laser light into beams to form reference light and object light directed to the object to be photographed;

[0056] The photorefractive crystal is used to respectively receive the reference light from the beam splitting unit and the object light diffusely reflected by the subject to form a holographic 3D image;

[0057] The rotation unit is configured to rotate the photorefractive crystal synchronously every time a new holographic 3D image is recorded.

[0058] In this embodiment, the recording of multiple holographic 3D images can be realized by rotating the photorefractive crystal in the holographic 3D recording dev...

Embodiment 2

[0060] figure 1 Shown is a schematic structural diagram of a holographic 3D recording device described in this embodiment. Such as figure 1 As shown, in this embodiment, the device includes:

[0061] A laser generating unit 1, configured to emit laser light. In this embodiment, the laser light is a highly coherent monochromatic laser light;

[0062] The beam splitting unit 2 is configured to receive the laser light emitted by the laser generating unit 1 and split the laser light to form a reference light and an object light directed to the subject 5; in this embodiment, the beam splitting unit 2 is a semi-reflective and semi-transparent beam splitter, which has a beam splitting effect on the incident laser. According to a certain beam splitting ratio (such as 1:1, etc.), the incident beam is divided into a reflected beam and a transmitted beam at a certain angle. In the embodiment, the reflected light beam is used as the reference light, and the transmitted light beam is used...

Embodiment 3

[0073] figure 2 The above is a flowchart of a holographic 3D recording method described in this embodiment, and the method includes:

[0074] S201 Build a holographic recording optical path to form a reference optical path reaching the photorefractive crystal and an object light path passing through the subject and then reaching the photorefractive crystal, wherein the object light and the reference light are coherent light;

[0075] S202 Record a holographic image on the photorefractive crystal through the holographic recording optical path;

[0076] S203 Keeping the structure of the holographic recording optical path unchanged, after rotating the photorefractive crystal to set an angle, record a holographic image on the photorefractive crystal through the holographic recording optical path.

[0077] In this embodiment, it can be set that the photorefractive crystal rotates synchronously every time the subject changes the subject angle, and a set of stereoscopic images repr...

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Abstract

The invention discloses a device for realizing holographic three-dimensional (3D) images and a method for realizing the holographic 3D images. The device comprises a recording unit and a displaying unit, wherein the recording unit comprises a laser generating unit, a beam splitting unit, a photorefractive crystal and a rotating unit, wherein the laser generating unit is used for generating lasers; the beam splitting unit is used for receiving the lasers emitted by the laser generating unit and splitting the lasers into a reference beam and an object beam which is emitted to an object to be photographed; the photorefractive crystal is used for respectively receiving the reference beam form the beam splitting unit and the object beam from the object to be photographed and forming a holographic 3D image; and the rotating unit is connected with the photorefractive crystal and used for rotating the photorefractive crystal synchronously when every new holographic 3D image is recorded. When the holographic 3D images are displayed, the image reproduction of the different holographic 3D images can be realized by rotating the photorefractive crystal in a reproduction light path, the holographic 3D images can be recorded and displayed quickly and conveniently, and the dynamic display of the holographic 3D images can also be realized.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a holographic 3D realization device and method. Background technique [0002] In linear optical materials (such as lenses, prisms, etc.), light beams just pass through each other without changing a certain property of the material itself. The photorefractive effect is the abbreviation of the photoinduced refractive index change effect. It does not refer to all changes in the refractive index induced by light, but specifically refers to the charge field formed by the photoconductive effect of the material under light radiation, and then the charge field is formed by the photoelectric effect. The effect that causes the refractive index to vary with the spatial distribution of light intensity. Since the optical properties of photorefractive materials can be changed by light passing through the material, such materials belong to nonlinear optical materials. Like the film p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03H1/12G03H1/22
CPCG03H1/265G03H1/02G03H1/04G03H1/041G03H2001/0268G03H2210/30G03H2223/17G03H2260/54G11B7/0065
Inventor 郑箫逸王俊伟崔晓鹏
Owner BOE TECH GRP CO LTD
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