Title:
HOLOGRAPHIC OPTICAL ELEMENT-BASED SLIM-TYPE SPATIAL IMAGE DISPLAY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/219251
Kind Code:
A1
Abstract:
The present invention relates to a holographic optical element-based slim-type spatial image display system comprising a holographic optical element and a retroreflective film. In addition, the holographic optical element-based slim-type spatial image display system comprises eye-box size/image formation position parameter information as parameter information for adjusting optical characteristics of restored images. In addition, the holographic optical element-based slim-type spatial image display system has a relay optical element (102-1) installed to adjust the optical path of a primarily formed image. The present invention is applicable to various fields such as culture/art contents and performances. A holographic optical element can be used to adjust the angle of diffraction of an incident ray as desired. A diffracted ray can be directed to a retroreflective film regardless of the inclination of the holographic optical element. A ray incident onto the retroreflective film is retroreflected such that a distortion-free spatial image can be made. Therefore, the present invention is noticeably advantageous in that a spatial image reproducing display having a relatively thin structure can be fabricated, spatial images having various characteristics can be reproduced according to HOE design, and HOE design for satisfying various requirements (for example, display installation environments, increased illusion of depth of reproduced spatial images) is possible.
Inventors:
KANG HOON JONG (KR)
CHOI HEE MIN (KR)
CHOI HEE MIN (KR)
Application Number:
PCT/KR2023/003413
Publication Date:
November 16, 2023
Filing Date:
March 14, 2023
Export Citation:
Assignee:
UNIV WONKWANG CT IND ACAD COOP (KR)
International Classes:
G03H1/04
Foreign References:
| US20200033618A1 | 2020-01-30 | |||
| KR20190110586A | 2019-09-30 | |||
| KR20160017908A | 2016-02-17 | |||
| CN110989195A | 2020-04-10 |
Other References:
HA SUNGJAE, HWANG LEEHWAN, LEE JAEHYUN, GENTET PHILIPPE, KWON SOONCHUL, LEE SEUNGHYUN: "A Study on Augmented 3D Display Optimization Based on Holographic Optical Element for High Depth and Magnified Image", FRONTIERS IN PHYSICS, vol. 9, 10 May 2021 (2021-05-10), pages 663122, XP093107709, ISSN: 2296-424X, DOI: 10.3389/fphy.2021.663122
Attorney, Agent or Firm:
MI PATENT AND LAW FIRM (KR)
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