Hologram generation method and color holographic display system

A holographic display and hologram technology, which is applied in the direction of instruments, can solve the problems that holograms are susceptible to secondary images, influence, and high cost, and achieve the effects of high imaging quality, high diffraction efficiency, and simple structure

Pending Publication Date: 2019-01-25
ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] This application provides a hologram generation method to solve the problem that the existing hologram generation method cannot present the three-dimensional color image of the object to be displayed with a single hologram; The reproduction of the object is easily affected by the secondary image and other problems
The present application also provides a color holographic display system for disp

Method used

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  • Hologram generation method and color holographic display system
  • Hologram generation method and color holographic display system
  • Hologram generation method and color holographic display system

Examples

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Embodiment 1

[0048] The present application provides a method for generating a hologram, and specific examples of the method for generating a hologram are as follows:

[0049] First, determine the design parameters of the hologram according to the relevant parameters of the spatial light modulator to which the hologram is loaded, and then encode the three-dimensional scene (object) to be displayed into a hologram according to the design parameters of the hologram. The important thing is, how The hologram is generated in a coded manner, and how to process the three-primary chromatic sub-hologram can generate a hologram that reproduces a three-dimensional color image. Because in the prior art, three-primary-color holograms are generally generated corresponding to the objects to be displayed, and then the three-primary-color holograms are respectively loaded onto multiple spatial light modulators, or sequentially loaded onto the same spatial light modulator, After modulation, the three-dimens...

Embodiment 2

[0069] Embodiment 1 of the present application provides a method for generating a hologram. In order to display the phase-type color hologram produced by this method, this embodiment correspondingly provides a method for displaying the color hologram. Figure three A color holographic display system for dimensional color images.

specific Embodiment

[0070]The present application provides a color holographic display system, and specific embodiments of the display system are as follows:

[0071] In this embodiment, a color three-dimensional holographic display system with a spatial light modulator resolution of 1980*1080pixels and a pixel size of 8um is taken as an example. figure 2 , image 3 A color holographic display system provided in this embodiment will be described in detail.

[0072] Such as figure 2 As shown, it shows a schematic structural diagram of a color three-dimensional holographic display system provided in this embodiment. A color three-dimensional holographic display system provided in this embodiment includes a light source unit 1 , a light beam collimation unit 3 and a modulation display unit. The three major units are the light source unit 1, beam collimation unit 3 and modulation display unit from right to left according to their functional characteristics and working sequence. The three major ...

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Abstract

The application provides a hologram generation method and a color holographic display system. The method comprises the following steps: providing three primary color light wave information and initiallight wave information of a plurality of object surfaces of an object to be displayed, wherein the amplitude of the initial light wave information is a unit amplitude and The phase is random; Simulating the propagation of the initial light wave information back and forth between a holographic surface and a plurality of object surfaces of the object to be displayed in a computer program; propagating The initial light wave information back and forth between the holographic surface and the plurality of object surfaces to complete a round iteration; In each iteration, replacing the amplitude of the light wave information with a corresponding target amplitude on the holographic surface and the plurality of object surfaces for each primary color light wave information, and retaining a phase; generating a color hologram, and carrying the light wave information of the color hologram as the new initial light wave information into the next iteration until a color hologram capable of reproducinga three-dimensional color image is obtained, and terminating the iteration. This method can generate color holograms which can reconstruct three-dimensional color images.

Description

technical field [0001] The present application relates to the field of color three-dimensional holographic display, and more importantly, relates to a hologram generating method and a color holographic display system matched with the hologram generated by the method. Background technique [0002] With the development of image processing technology, holograms and holographic projections have broad application prospects in our daily life and work production. Specifically, especially in the field of display, the energy utilization rate of holograms and holographic projections is much higher than that of traditional projections, and they have the advantages of small size, simple structure, no image dead pixels, and good stability. The current color 3D holographic display technology is due to its The true three-dimensional display characteristics have received widespread attention. At this stage, scholars have proposed many ways to realize color holographic display, which can be ...

Claims

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Application Information

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IPC IPC(8): G03H1/12G03H1/08
CPCG03H1/08G03H1/12
Inventor 亓岩颜博霞韩哲王延伟王宇
Owner ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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