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:
Mar. 25, 2025
Filed:
Apr. 03, 2020
Zhongchao Special Security Technology Co., Ltd, Beijing, CN;
China Banknote Printing and Minting Corp., Beijing, CN;
ZHONGCHAO SPECIAL SECURITY TECHNOLOGY CO., LTD, Beijing, CN;
CHINA BANKNOTE PRINTING AND MINTING CORP., Beijing, CN;
Abstract
The disclose provides an optical anti-counterfeiting element and a manufacturing method of the optical anti-counterfeiting element, the optical anti-counterfeiting element includes: a substrate, the substrate has a first surface and a second surface which are opposite to each other; and an interference color layer located on the first surface of the substrate, the interference color layer is located in a non-hollow area of the optical anti-counterfeiting element and is not located in a hollow area, the interference color layer is a Fabry-Perot filter structure, an absorbing layer of the Fabry-Perot filter structure is in contact with the substrate, and a material of the absorbing layer is an alloy.