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. 24, 2020
Filed:
Apr. 23, 2018
Applicant:
Kwangwoon University Industry-academic Collaboration Foundation, Seoul, KR;
Inventors:
Eun Soo Kim, Seoul, KR;
Yong Seok Hwang, Goyang, KR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03H 1/04 (2006.01); G02B 5/32 (2006.01); G03H 1/02 (2006.01); G03H 1/22 (2006.01); G03H 1/24 (2006.01); G03H 1/28 (2006.01);
U.S. Cl.
CPC ...
G03H 1/0402 (2013.01); G02B 5/32 (2013.01); G03H 1/0248 (2013.01); G03H 1/2249 (2013.01); G03H 1/24 (2013.01); G03H 1/28 (2013.01); G03H 2001/0413 (2013.01); G03H 2001/2271 (2013.01);
Abstract
The present invention suggests a holographic optical element which forms a pattern according to a transmissive hologram recording method based on a multi-diverging object beam and a reference beam, a method for generating the same, and a screen device including the holographic optical element. The holographic optical element according to the present invention includes a base film and a pattern which is formed on the base film by using a transmissive hologram recording method based on a multi-diverging object beam and a reference beam.