Object marking for optical authentication and method for producing same
US11390107B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 5, 2020 |
| Grant date | Jul 19, 2022 |
| Priority date | — |
| Expiry date | Oct 5, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H1/0011
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Object marking, and method for producing same, for optical authentication of an object, wherein at least one section of a material piece of a basic material is determined arbitrarily or randomly and the object marking is produced with the at least one section, and wherein the basic material of the material piece has a repeating security feature having optical properties dependent on the viewing angle, the dimensions of said security feature being larger than the dimensions of the section, more particularly larger than the dimensions of the object marking, such that each section is unique and has only a part of the security feature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.