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Holographic display method of precise light intensity modulation

A light intensity modulation and holographic display technology, which is applied in the field of holographic display, can solve the problems of reducing system resolution and achieve the effects of avoiding calculation speckle noise, system structure optimization, and high display fineness

Active Publication Date: 2014-09-10
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Each corresponding pixel on the two spatial light modulators in the system needs to be in one-to-one correspondence, which reduces the resolution of the entire system virtually; although the system uses two spatial light modulators, when it is actually displayed, its display The resolution of the image is only as high as that of one spatial light modulator

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  • Holographic display method of precise light intensity modulation
  • Holographic display method of precise light intensity modulation
  • Holographic display method of precise light intensity modulation

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Embodiment Construction

[0034] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.

[0035] The present invention aims to use two spatial light modulators, through a unique encoding method and an optimized system structure, to realize precise light intensity modulation without reducing the resolution of the system and improving the fineness of display.

[0036] The method of the invention includes two parts: the process of obtaining the hologram by using the analytical formula and the realization of the display by using the precise modulation system based on the dual spatial light modulator.

[0037] The process of obtaining the hologram determines the amplitude distribution of the light wave field, and the target image is the light field intensity distribution during the final im...

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Abstract

The invention discloses a holographic display method of precise light intensity modulation. Two spatial light modulators are utilized, by means of a specific coding mode and an optimized system structure, holographic display of precise light intensity modulation is achieved, display fineness is improved, and the resolution of a system cannot be reduced. Compared with the prior art, the technical scheme has the advantages that fast coding and high-definition reproduced holographic display is realized, and increasing demand of people is satisfied.

Description

technical field [0001] The invention relates to the field of holographic display, in particular to a holographic display method for precise light intensity modulation. Background technique [0002] The spatial light modulator is a device loaded with a hologram for three-dimensional object reconstruction, and is the core device for dynamic holographic three-dimensional display. Therefore, the level of the spatial light modulator device determines the reproduction effect (including the reproduced image size, resolution and field of view, etc.). However, existing spatial light modulators cannot meet the spatial bandwidth product requirements required for dynamic holographic 3D displays. LCoS is a relatively common spatial light modulator in the research of dynamic holographic three-dimensional display at present, especially the pure phase LCoS modulation device has the characteristics of high diffraction efficiency and has been widely used. For example, Germany's Holoeye compa...

Claims

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Application Information

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IPC IPC(8): G03H1/22
Inventor 刘娟李昕王涌天
Owner BEIJING INSTITUTE OF TECHNOLOGYGY