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. 07, 2021
Filed:
Dec. 27, 2019
Toppan Printing Co., Ltd., Tokyo, JP;
Kazuyoshi Ebina, Tokyo, JP;
TOPPAN PRINTING CO., LTD., Tokyo, JP;
Abstract
An optical structure comprises an embossed layer having an embossed face including a recording area, the recording area including an embossed recording body having an uneven structure; and a light reflecting layer covering a part or the entirety of the recording area. The recording area includes a refractive mirror area and a diffractive area in the vicinity of the refractive mirror area. The refractive mirror area includes a plurality of aligned inclined mirrors constituting the embossed recording body, and the diffractive area has a diffractive structure. The refractive mirror area has a plurality of local mirror structures, and the diffractive area has a plurality of local diffractive structures. Each pair of the local diffractive structure and the local mirror structure adjacent to the local diffractive structure forms one local structure.