Integrated Diffractive Identification Feature for Anti-Forgery Authentication
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Solution Overview
Problem
Existing methods for authenticating objects are time-consuming and require large data storage due to the need for additional identification features that can be easily forged, as they are typically attached subsequently and rely on a single identification system.
Innovation Solution
An integrated identification feature comprising at least two elements, where a defined diffractive surface structure serves as the first element and a second element is embedded within the optical detection field, produced during object manufacturing, utilizing a diffractive surface structure and random structures to create a unique, non-reproducible feature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If identification features are subsequently attached to products (stickers, imprints), then authentication capability is provided, but the identification features can be easily forged and require large data storage
Solution Approach 1:
The patent combines multiple identification elements (hologram, punched hole, distance relationship) into a single integrated identification feature that is produced during manufacturing rather than attached subsequently. This merging reduces the need for large data storage while enhancing security against forgery, as the combined feature cannot be easily replicated without the entire production process.
Solution Approach 2:
The identification feature is produced during the manufacturing process itself (injection molding) rather than being added later. The hologram, punched hole, and their spatial relationship are all created simultaneously as integral parts of the product, preventing subsequent attachment or forgery while reducing data storage needs.
2Reliability
If multiple identification elements are combined in a single feature, then forgery resistance increases, but the manufacturing process becomes more complex
Solution Approach 1:
The patent merges the hologram creation, punched hole formation, and spatial relationship definition into a single injection molding process. The mold cavity includes both the hologram structure and the punched hole feature, allowing simultaneous production of multiple identification elements without requiring separate manufacturing steps or assembly operations.
Solution Approach 2:
The injection molding process serves multiple functions: it creates the product shape, embeds the hologram identification feature, and forms the punched hole, all in a single operation. This multi-functionality reduces manufacturing complexity despite the increased sophistication of the identification feature.
3Measurement precision
If authentication requires data processing and comparison with stored data, then identification accuracy improves, but the authentication time increases
Solution Approach 1:
The patent uses the distance relationship between the hologram and punched hole as an additional identification element that can be quickly verified. This partial use of the available identification features enables faster authentication without requiring complete data processing, as the spatial relationship can be assessed more rapidly than comprehensive pattern matching.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances security by providing a seamless, efficient authentication process that reduces data storage needs and prevents easy forgery, allowing for on-site verification with minimal additional effort.
Implementation Method 1
at least one surface which is delimited in a defined manner and has a defined diffractive surface structure that can be recognized by light irradiation in the visual area
Data Source
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AI summary
An identification feature for identifying an object comprises at least two identification elements, wherein at least a first identification element thereof is formed by at least one defined, delimited surface with a defined diffractive surface structure that can be recognized through light irradiation in the visual range, and at least one second identification element is provided within an optical detection field, said second identification element at least partially detecting the defined, delimited surface of the first identification element. In a method for identifying the object, the position at which the at least one second identification element is located relative to the at least one first identification element is stored in memory. Further, identification information unique to the at least one second identification element is stored in memory. A depiction of the first identification element is compared to the stored data for the purposes of identification.