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:
May. 18, 2021
Filed:
Dec. 15, 2017
Applicant:
Electronics and Telecommunications Research Institute, Daejeon, KR;
Inventors:
Mun Seob Lee, Daejeon, KR;
Gi Hyeon Min, Gwangju, KR;
Byung-Tak Lee, Suwon-si, KR;
Seihyoung Lee, Gwangju, KR;
Dongsoo Lee, Yongin-si, KR;
Assignee:
Electronics and Telecommunications Research Institute, Daejeon, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03H 1/08 (2006.01); G03H 1/04 (2006.01); G03H 1/06 (2006.01);
U.S. Cl.
CPC ...
G03H 1/0443 (2013.01); G03H 1/06 (2013.01); G03H 2001/0447 (2013.01); G03H 2001/0452 (2013.01); G03H 2001/0458 (2013.01); G03H 2222/31 (2013.01); G03H 2222/53 (2013.01); G03H 2222/54 (2013.01); G03H 2223/19 (2013.01); G03H 2223/22 (2013.01); G03H 2225/32 (2013.01); G03H 2226/13 (2013.01);
Abstract
A hologram image acquiring apparatus includes a linear polarizer that filters incident light reflected by an object into a polarized component of a specific angle; a spherical lens that partially converts light that is incident through the linear polarizer to a spherical waveform; and a phase shifter that converts a part of the light incident through the spherical lens to a plane waveform having a respective phase per pixel unit.