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:
Sep. 16, 2025
Filed:
Aug. 12, 2020
Zhongchao Special Security Technology Co., Ltd, Beijing, CN;
China Banknote Printing and Minting Corp., Beijing, CN;
Weiwei Zhang, Beijing, CN;
Chunhua Hu, Beijing, CN;
ZHONGCHAO SPECIAL SECURITY TECHNOLOGY CO., LTD, Beijing, CN;
CHINA BANKNOTE PRINTING AND MINTING CORP., Beijing, CN;
Abstract
The disclosure provides an optical anti-counterfeiting element and an optical anti-counterfeiting product, the optical anti-counterfeiting element includes: a substrate () having a first surface and a second surface opposite to each other; a microstructure formation layer () formed on the first surface, the microstructure formation layer () includes at least a first region (), the first region () includes at least a first microstructure (), the first microstructure () includes a convex portion and/or a concave portion; and optically variable coatings () homomorphically covering on the first microstructure (), the optically variable coatings () include reflective layers (), dielectric layers () and absorption layers () which are stacked in sequence, wherein the reflective layers () or the absorption layers () are in contact with the first microstructure (), and the dielectric layers () are obtained by coating or printing.