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. 18, 2020
Filed:
Oct. 29, 2018
Applicant:
Naeilhae, Co. Ltd., Seongnam-si, Gyeonggi-do, KR;
Inventors:
Byung Mok Kim, Seoul, KR;
Mal Eum Sung, Seoul, KR;
Seong Jin Park, Seoul, KR;
Sang Jin Lee, Seoul, KR;
Assignee:
NAEILHAE, CO. LTD., Seongnam-si, Gyeonggi-Do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03H 1/08 (2006.01); G03H 1/04 (2006.01); G02B 27/28 (2006.01); G03B 35/24 (2006.01); G02B 27/22 (2018.01); G03H 1/00 (2006.01);
U.S. Cl.
CPC ...
G03H 1/0866 (2013.01); G02B 27/2292 (2013.01); G02B 27/28 (2013.01); G03B 35/24 (2013.01); G03H 1/0443 (2013.01); G03H 2001/005 (2013.01);
Abstract
A time delay error occurring in the case of acquiring two holograms (object hologram and reference hologram) necessary for reconstruction in the related art or in the case of acquiring four physical holograms having different phase shift degrees may be removed. DC noise (including background noise) may be completely removed by using a software-implemented phase shifting method.