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:
Nov. 09, 2021
Filed:
Dec. 28, 2018
Applicant:
Electronics and Telecommunications Research Institute, Daejeon, KR;
Inventor:
Hyun Eui Kim, Cheongju, KR;
Assignee:
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03H 1/22 (2006.01); G02B 5/32 (2006.01); G03H 1/02 (2006.01);
U.S. Cl.
CPC ...
G03H 1/2294 (2013.01); G02B 5/32 (2013.01); G03H 1/0248 (2013.01); G03H 1/2205 (2013.01); G03H 2001/221 (2013.01); G03H 2001/2207 (2013.01); G03H 2210/30 (2013.01); G03H 2223/12 (2013.01); G03H 2223/19 (2013.01); G03H 2223/23 (2013.01);
Abstract
In the present invention, by providing a hologram displaying apparatus including a light source configured to emit input light, a spatial light modulator configured to modulate the input light into diffracted light, and a plurality of noise filtering elements configured to remove optical noise components from the diffracted light modulated by the spatial light modulator, and display a hologram, an optical path of a light source for displaying the hologram can be drastically reduced while effectively performing spatial filtering.