The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 07, 2023
Filed:
Dec. 10, 2020
Holographic optical system structure and holographic display apparatus using spatial light modulator
Applicant:
Electronics and Telecommunications Research Institute, Daejeon, KR;
Inventor:
Hyun Eui Kim, Cheongju-si, KR;
Assignee:
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03H 1/22 (2006.01);
U.S. Cl.
CPC ...
G03H 1/2205 (2013.01); G03H 1/2294 (2013.01); G03H 2223/23 (2013.01); G03H 2223/55 (2013.01);
Abstract
A holographic optical system and a holographic display method may be efficiently applied when using a spatial light modulator (SLM). A holographic display apparatus includes a spatial light modulator (SLM) configured to reproduce a hologram, and an optical system configured to perform Fourier transform with respect to the hologram of the SLM using a pair of first and second lenses, the first and second lenses being confocal. A Fourier plane which is a display reference image plane is positioned in the same plane space as the second lens.