Title:
HOLOGRAPHIC OPTICAL ELEMENT AND MANUFACTURING METHOD THEREOF, IMAGE RECONSTRUCTION METHOD, AND AUGMENTED REALITY GLASSES
Document Type and Number:
WIPO Patent Application WO/2019/228280
Kind Code:
A1
Abstract:
A holographic optical element and a manufacturing method thereof, an image reconstruction method, and augmented reality glasses. The holographic optical element (1) comprises a substrate (101) and a recording material layer (102). At least two groups of interference fringe are recorded in the recording material layer (102), and each group of interference fringe comprises a first interference fringe and a second interference fringe. The first interference fringe is formed by first signal light (3) and first reference light (5) respectively entering two sides of the recording material layer (102). The second interference fringe is formed by second signal light (4) and second reference light (6) respectively entering the two sides of the recording material layer (102), and the second signal light (4) passes through a lens (2, 2') before entering the two sides of the recording material layer (102). An incident angle of the first signal light (3) is equal to an incident angle of the second reference light (6). Incident directions of the first signal light (3) corresponding to the groups of interference fringe are different from each other, and the focal lengths of the lenses (2, 2') through which the second signal light (4) corresponding to the groups of interference fringe passes before the entering the two sides of the recording material layer (102) are different from each other. The holographic optical element manufactured by means of the above method and used to perform image reconstruction can form an image having multiple depths of field.
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Inventors:
ZHANG HONGSHU (CN)
ZHAO HEBIN (CN)
QIU YUN (CN)
WANG DAN (CN)
ZHAO HEBIN (CN)
QIU YUN (CN)
WANG DAN (CN)
Application Number:
PCT/CN2019/088404
Publication Date:
December 05, 2019
Filing Date:
May 24, 2019
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
BEIJING BOE DISPLAY TECH CO (CN)
BEIJING BOE DISPLAY TECH CO (CN)
International Classes:
G03H1/12
Domestic Patent References:
| WO2000063729A1 | 2000-10-26 |
Foreign References:
| CN103123789A | 2013-05-29 | |||
| CN101783149A | 2010-07-21 | |||
| US20180081322A1 | 2018-03-22 | |||
| CN106154797A | 2016-11-23 | |||
| CN102841448A | 2012-12-26 | |||
| CN103376725A | 2013-10-30 | |||
| CN102411298A | 2012-04-11 | |||
| CN201810549783A | 2018-05-31 |
Other References:
DENG, HUAN; WANG, QIONGHUA: "3D Display Technology for Augmented Reality Based on Integral Imaging-A Review", SCIENCE & TECHNOLOGY REVIEW, vol. 36, no. 9, 13 May 2018 (2018-05-13), XP055659534
See also references of EP 3805867A4
See also references of EP 3805867A4
Attorney, Agent or Firm:
LIU, SHEN & ASSOCIATES (CN)
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