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. 30, 2023
Filed:
Jul. 24, 2020
Applicant:
Toppan Printing Co., Ltd., Tokyo, JP;
Inventors:
Soko Koda, Tokyo, JP;
Akihito Kagotani, Tokyo, JP;
Tomoyuki Shirasaki, Tokyo, JP;
Noriko Harashima, Tokyo, JP;
Assignee:
TOPPAN PRINTING CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03H 1/00 (2006.01); G02B 5/32 (2006.01); G03H 1/02 (2006.01); G03H 1/08 (2006.01); G03H 1/22 (2006.01);
U.S. Cl.
CPC ...
G03H 1/0011 (2013.01); G02B 5/32 (2013.01); G03H 1/0252 (2013.01); G03H 1/08 (2013.01); G03H 1/2286 (2013.01); G03H 2001/2244 (2013.01); G03H 2225/32 (2013.01); G03H 2250/42 (2013.01);
Abstract
A hologram that includes a formation layer and a reflection layer that are laminated. The formation layer has an optical phase modulation structure on a first interface in contact with the reflection layer. When reference light emitted from a point light source enters through a second interface different from the first interface of the formation layer, the entirety or part of an image to be reconstructed by the optical phase modulation structure is reconstructed as spatial information on the point light source side relative to the second interface.