CROSSTALK-FREE HOLOGRAPHIC 3D DISPLAY METHOD BASED ON DIFFRACTION FUZZY IMAGING PRINCIPLE

WIPO Patent Application WO/2023/015621

A1

A crosstalk-free holographic 3D display method based on a diffraction fuzzy imaging principle. The method comprises three steps: step one, for a 3D object, calculating a fuzzy light field distribution of the object according to an Abbe secondary imaging theory and a Fresnel diffraction principle, and calculating a secondary diffraction fuzzy imaging condition of the object; step two, establishing a crosstalk relationship between light fields of different depth faces on the basis of secondary diffraction fuzzy imaging characteristics, and calculating a crosstalk light field; and step three, for light field crosstalk between different depth faces, enabling, by superimposing a grating phase, a spatial frequency spectrum of the crosstalk light field to form characteristics of a window matrix, so as to separate the crosstalk light field from a target light field in the form of the window matrix, thereby generating a complex amplitude hologram and realizing a crosstalk-free holographic 3D display effect.

WANG DI (CN)
PANG YINGFEI (CN)
WANG QIONGHUA (CN)
XU LIJUN (CN)
LI NANNAN (CN)
LI ZHAOSONG (CN)

PCT/CN2021/115786

February 16, 2023

August 31, 2021

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UNIV BEIHANG (CN)

G03H1/08

WO2001023965A1

2001-04-05

CN111830811A	2020-10-27
CN108519729A	2018-09-11
US4421380A	1983-12-20
US20190049896A1	2019-02-14
US20100014136A1	2010-01-21
US8243353B1	2012-08-14

CHOFN INTELLECTUAL PROPERTY (CN)

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