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:
Jan. 23, 2024
Filed:
Dec. 09, 2021
Applicant:
Electronics and Telecommunications Research Institute, Daejeon, KR;
Inventor:
Kee Hoon Hong, Daejeon, KR;
Assignee:
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03H 1/22 (2006.01); G03H 1/00 (2006.01);
U.S. Cl.
CPC ...
G03H 1/0005 (2013.01); G03H 1/2202 (2013.01); G03H 2001/0088 (2013.01); G03H 2001/2231 (2013.01);
Abstract
Disclosed herein a module controlling viewing window, a device for hologram display and a method for displaying hologram. The module controlling viewing window includes: a viewing window forming unit having a first reflective optical system that receives an incident light and forms a viewing window in a user's viewing region; and a viewing angle expanding unit having a second reflective optical system that is arranged in one direction on the viewing window forming unit and expands a viewing angle of the viewing window.