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:
Dec. 23, 2025
Filed:
Mar. 08, 2022
Applicant:
Nec Corporation, Tokyo, JP;
Inventor:
Yuki Ashino, Tokyo, JP;
Assignee:
NEC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 3/00 (2006.01); G02B 5/20 (2006.01);
U.S. Cl.
CPC ...
G02B 3/005 (2013.01); G02B 5/201 (2013.01);
Abstract
A concealment method includes: acquiring image data showing a background of an object; detecting a change in a component in a predetermined direction included in the image data; determining a pseudo direction of the image data on the basis of the result of the detection; and arranging, between the object and an observation position of the object, a first concealment body including a plurality of optical elements having a property of refracting light rays in a predetermined direction and continuously arranged in an arrangement direction in a state of the arrangement direction being oriented in a direction along the pseudo direction.